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1538645957 NPI Number Info

healthcare provider npi status:  active since 07/18/2018

GRETCHEN CHAN FNP

Most Relevant Information

Provider Data

NPI Number 1538645957
Provider Name GRETCHEN CHAN FNP
Entity Type Individual

Most Important Dates

Provider Enumeration Date 07/18/2018
Last Updated 10/21/2025

Provider Practice Location

375 WHITE PLAINS RD
EASTCHESTER
NY
10709-2826
US

Practice Location Phone/Fax

Phone 512-324-4780
Fax  

Provider Mailing Address

375 WHITE PLAINS RD
EASTCHESTER
NY
10709-2826
US

Mailing Location Phone/Fax

Phone  
Fax  

Authorized Official

Title or Position N/S
Authorized Official Name N/S
Credentials N/S  
Telephone Number N/S
Is it your NPI number ?

Detailed Information

NPI Number 1538645957 has the "Individual" type of ownership and has been registered to the following primary business legal name (which is a provider name or healthcare organization name) — GRETCHEN CHAN FNP. Records indicate that the provider gender is "Female".

The enumeration date of this NPI Number is 07/18/2018.
NPI Number information was last time updated on 10/21/2025.

The provider is physically located at:

375 WHITE PLAINS RD
EASTCHESTER, NY
10709-2826, US

GRETCHEN CHAN FNP can be reached at the following phone number(s):

Phone:  512-324-4780
Fax:  

The provider's official mailing address is:

375 WHITE PLAINS RD
EASTCHESTER, NY
10709-2826, US

The contact numbers associated with the mailing address are:

Phone:  
Fax:  

Scope of Practice (Taxonomy)

# Primary Taxonomy Code Taxonomy Specialty License Number License State
1 Y 363LF0000X Family Nurse Practitioner 354799 NY
2 N 207Q00000X Family Medicine Physician SP032176 PA
3 N 207Q00000X Family Medicine Physician A167963 IA
4 N 207Q00000X Family Medicine Physician 95024282 CA
5 N 207Q00000X Family Medicine Physician 278738 AZ
6 N 207Q00000X Family Medicine Physician 26NJ01310400 NJ
7 N 207Q00000X Family Medicine Physician NP200006280 DC
8 N 363LF0000X Family Nurse Practitioner AP137862 TX
9 N 207Q00000X Family Medicine Physician 857507 NV
10 N 207Q00000X Family Medicine Physician C-APN-0002065-C-NP CO
11 N 207Q00000X Family Medicine Physician 53-80701-061 KS
12 N 207Q00000X Family Medicine Physician 5022731 NC
13 N 207Q00000X Family Medicine Physician AP61350350 WA
14 N 207Q00000X Family Medicine Physician 10824 CT
15 N 207Q00000X Family Medicine Physician 113869 NE

Reference NPI Information. Full Replica of the CMS (NPPES) NPI Record

Field Name Field Value
NPI 1538645957
10-position all-numeric identification number assigned by the NPS to uniquely identify a health care provider.
Entity Type Individual
Code describing the type of health care provider that is being assigned an NPI. Codes are:
  • 1 = (Person): individual human being who furnishes health care;
  • 2 = (Non-person): entity other than an individual human being that furnishes health care (for example, hospital, SNF, hospital subunit, pharmacy, or HMO).
Is Sole Proprietor N
Indicate whether provider is a sole proprietor.
  • A sole proprietor is the sole (the only) owner of a business that is not incorporated; that unincorporated business is a sole proprietorship.
  • In a sole proprietorship, the sole proprietor owns all of the assets of the business and is solely liable for all of the debts of the business.
  • There is no difference between a sole proprietorship and a sole proprietor; they are legally a single entity: an individual.
  • In terms of NPI assignment, a sole proprietor is an Entity type 1 (Individual) and is eligible for only one NPI (the sole proprietorship business is not eligible for its own NPI).
  • As an individual, a sole proprietorship cannot be a subpart and cannot have subparts. (See NPI Final Rule for information about subparts.)
  • A sole proprietorship may or may not have employees.
  • Often, the IRS assigns an EIN to a sole proprietorship in order to protect the sole proprietor's SSN from disclosure in claims or on W-2s. NPPES does not capture a sole proprietorship's EIN.
  • Many types of health care providers could be sole proprietorships (for example, group practices, pharmacies, home health agencies).
Provider Last Name (Legal Name) CHAN
The last name of the provider (if an individual). If the provider is an individual, this is the legal name. This name must match the name on file with the Social Security Administration (SSA). In addition, the date of birth must match that on file with SSA. (First and last names are required for initial applications.) The First, Middle, Last and Credential(s) fields allow the following special characters: ampersand, apostrophe, colon, comma, forward slash, hyphen, left and right parentheses, period, pound sign, quotation mark, and semi-colon. A field cannot contain all special characters.
Provider First Name GRETCHEN
The first name of the provider, if the provider is an individual.
Provider Credential Text FNP
The abbreviations for professional degrees or credentials used or held by the provider, if the provider is an individual. Examples are MD, DDS, CSW, CNA, AA, NP, RNA, or PSY. These credential designations will not be verified by NPS.
Provider Other Last Name MUSGRAVE
Other last name by which the provider being identified is or has been known (if an individual)
Provider Other First Name GRETCHEN
Other first name by which the provider being identified is or has been known (if an individual). This may be the same as the ''Provider first name'' if the provider is or has been known by a different last name only.
Provider Other Last Name Type Code 1
Code identifying the type of other name. Codes are: 1 = former name; 2 = professional name; 5 = other.
Provider First Line Business Mailing Address 375 WHITE PLAINS RD
The first line mailing address of the provider being identified. This data element may contain the same information as ''Provider first line location address''.
Provider Business Mailing Address City Name EASTCHESTER
The City name in the mailing address of the provider being identified. This data element may contain the same information as ''Provider location address City name''.
Provider Business Mailing Address State Name NY
The State or Province name in the mailing address of the provider being identified. This data element may contain the same information as ''Provider location address State name''.
Provider Business Mailing Address Postal Code 10709-2826
The postal ZIP or zone code in the mailing address of the provider being identified. NOTE: ZIP code plus 4-digit extension, if available. This data element may contain the same information as ''Provider location address postal code''.
Provider Business Mailing Address Country Code US
The country code in the mailing address of the provider being identified. This data element may contain the same information as ''Provider location address country code''.
Provider First Line Business Practice Location Address 375 WHITE PLAINS RD
The first line location address of the provider being identified. For providers with more than one physical location, this is the primary location. This address cannot include a Post Office box.
Provider Business Practice Location Address City Name EASTCHESTER
The city name in the location address of the provider being identified.
Provider Business Practice Location Address State Name NY
The State or Province name in the location address of the provider being identified.
Provider Business Practice Location Address Postal Code 10709-2826
The postal ZIP or zone code in the location address of the provider being identified. NOTE: ZIP code plus 4-digit extension, if available.
Provider Business Practice Location Address Country Code US
The country code in the location address of the provider being identified.
Provider Business Practice Location Address Telephone Number 512-324-4780
The telephone number associated with the location address of the provider being identified.
Provider Enumeration Date 07/18/2018
The date the provider was assigned a unique identifier (assigned an NPI).
Last Update Date 10/21/2025
The date that a record was last updated or changed.
Provider Gender Code F
The code designating the provider's gender if the provider is a person.
Provider Gender Female
The provider's gender if the provider is a person.
Healthcare Provider Taxonomy Code #1 363LF0000X
The Health Care Provider Taxonomy code is a unique alphanumeric code, ten characters in length. The code set is structured into three distinct "Levels" including Provider Type, Classification, and Area of Specialization.
Healthcare Provider Taxonomy 1 Family Nurse Practitioner
Healthcare Provider Taxonomy #1
Provider License Number 1 354799
Certain taxonomy selections will require you to enter your license number and the state where the license was issued. Select Foreign Country in the state drop down box if the license was issued outside of United States. The License Number field allows the following special characters: ampersand, apostrophe, colon, comma, forward slash, hyphen, left and right parentheses, period, pound sign, quotation mark, and semi-colon. A field cannot contain all special characters. DO NOT report the Social Security Number (SSN), IRS Individual Taxpayer Identification Number (ITIN) in this section.
Provider License Number State Code 1 NY
Provider License Number State Code #1
Healthcare Provider Primary Taxonomy Switch 1 Y
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 2 207Q00000X
Healthcare Provider Taxonomy Code #2
Healthcare Provider Taxonomy 2 Family Medicine Physician
Healthcare Provider Taxonomy #2
Provider License Number 2 SP032176
Provider License Number #2
Provider License Number State Code 2 PA
Provider License Number State Code #2
Healthcare Provider Primary Taxonomy Switch 2 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 3 207Q00000X
Healthcare Provider Taxonomy Code #3
Healthcare Provider Taxonomy 3 Family Medicine Physician
Healthcare Provider Taxonomy #3
Provider License Number 3 A167963
Provider License Number #3
Provider License Number State Code 3 IA
Provider License Number State Code #3
Healthcare Provider Primary Taxonomy Switch 3 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 4 207Q00000X
Healthcare Provider Taxonomy Code #4
Healthcare Provider Taxonomy 4 Family Medicine Physician
Healthcare Provider Taxonomy #4
Provider License Number 4 95024282
Provider License Number #4
Provider License Number State Code 4 CA
Provider License Number State Code #4
Healthcare Provider Primary Taxonomy Switch 4 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 5 207Q00000X
Healthcare Provider Taxonomy Code #5
Healthcare Provider Taxonomy 5 Family Medicine Physician
Healthcare Provider Taxonomy #5
Provider License Number 5 278738
Provider License Number #5
Provider License Number State Code 5 AZ
Provider License Number State Code #5
Healthcare Provider Primary Taxonomy Switch 5 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 6 207Q00000X
Healthcare Provider Taxonomy Code #6
Healthcare Provider Taxonomy 6 Family Medicine Physician
Healthcare Provider Taxonomy #6
Provider License Number 6 26NJ01310400
Provider License Number #6
Provider License Number State Code 6 NJ
Provider License Number State Code #6
Healthcare Provider Primary Taxonomy Switch 6 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 7 207Q00000X
Healthcare Provider Taxonomy Code #7
Healthcare Provider Taxonomy 7 Family Medicine Physician
Healthcare Provider Taxonomy #7
Provider License Number 7 NP200006280
Provider License Number #7
Provider License Number State Code 7 DC
Provider License Number State Code #7
Healthcare Provider Primary Taxonomy Switch 7 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 8 363LF0000X
Healthcare Provider Taxonomy Code #8
Healthcare Provider Taxonomy 8 Family Nurse Practitioner
Healthcare Provider Taxonomy #8
Provider License Number 8 AP137862
Provider License Number #8
Provider License Number State Code 8 TX
Provider License Number State Code #8
Healthcare Provider Primary Taxonomy Switch 8 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 9 207Q00000X
Healthcare Provider Taxonomy Code #9
Healthcare Provider Taxonomy 9 Family Medicine Physician
Healthcare Provider Taxonomy #9
Provider License Number 9 857507
Provider License Number #9
Provider License Number State Code 9 NV
Provider License Number State Code #9
Healthcare Provider Primary Taxonomy Switch 9 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 10 207Q00000X
Healthcare Provider Taxonomy Code #10
Healthcare Provider Taxonomy 10 Family Medicine Physician
Healthcare Provider Taxonomy #10
Provider License Number 10 C-APN-0002065-C-NP
Provider License Number #10
Provider License Number State Code 10 CO
Provider License Number State Code #10
Healthcare Provider Primary Taxonomy Switch 10 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 11 207Q00000X
Healthcare Provider Taxonomy Code #11
Healthcare Provider Taxonomy 11 Family Medicine Physician
Healthcare Provider Taxonomy #11
Provider License Number 11 53-80701-061
Provider License Number #11
Provider License Number State Code 11 KS
Provider License Number State Code #11
Healthcare Provider Primary Taxonomy Switch 11 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 12 207Q00000X
Healthcare Provider Taxonomy Code #12
Healthcare Provider Taxonomy 12 Family Medicine Physician
Healthcare Provider Taxonomy #12
Provider License Number 12 5022731
Provider License Number #12
Provider License Number State Code 12 NC
Provider License Number State Code #12
Healthcare Provider Primary Taxonomy Switch 12 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 13 207Q00000X
Healthcare Provider Taxonomy Code #13
Healthcare Provider Taxonomy 13 Family Medicine Physician
Healthcare Provider Taxonomy #13
Provider License Number 13 AP61350350
Provider License Number #13
Provider License Number State Code 13 WA
Provider License Number State Code #13
Healthcare Provider Primary Taxonomy Switch 13 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 14 207Q00000X
Healthcare Provider Taxonomy Code #14
Healthcare Provider Taxonomy 14 Family Medicine Physician
Healthcare Provider Taxonomy #14
Provider License Number 14 10824
Provider License Number #14
Provider License Number State Code 14 CT
Provider License Number State Code #14
Healthcare Provider Primary Taxonomy Switch 14 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Healthcare Provider Taxonomy Code 15 207Q00000X
Healthcare Provider Taxonomy Code #15
Healthcare Provider Taxonomy 15 Family Medicine Physician
Healthcare Provider Taxonomy #15
Provider License Number 15 113869
Provider License Number #15
Provider License Number State Code 15 NE
Provider License Number State Code #15
Healthcare Provider Primary Taxonomy Switch 15 N
Primary Taxonomy:
  • X - The primary taxonomy switch is Not Answered;
  • Y - The taxonomy is the primary taxonomy (there can be only one per NPI record);
  • N - The taxonomy is not the primary taxonomy.
Certification Date 10/21/2025
Certification Date

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