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1033113758

NPI Code Detail

MEDICARE: DR. ALLAN DOUGLAS SIEFKIN MD

MEDICARE: DR. ALLAN DOUGLAS SIEFKIN MD

Medicare Provider Information

Scope of Practice

The following information about the specialty of the provider is available:

#	Taxonomy Code	Taxonomy	License Number	License Number State
1	207R00000X	Internal Medicine Physician	G032410	CA
2	207RC0200X	Critical Care Medicine (Internal Medicine) Physician	G032410	CA
3	207RP1001X	Pulmonary Disease Physician	G032410	CA

General Provider Information

NPI Number	:	1033113758
Entity Type Code	:	Individual
Provider Name (Legal Business Name)	:	DR. ALLAN DOUGLAS SIEFKIN MD

Provider Business Mailing Address
First Line	:	2315 STOCKTON BLVD
Second Line	:
City	:	SACRAMENTO
State	:	CA
Zip	:	95817-2201
Country	:	US
Telephone Number	:	916-734-1166
Fax Number	:	916-734-3234

Provider Business Practice Location Address
First Line	:	2315 STOCKTON BLVD
Second Line	:
City	:	SACRAMENTO
State	:	CA
Zip	:	95817-2201
Country	:	US
Telephone Number	:	916-734-1166
Fax Number	:	916-734-3234

Authorized Official
Title or Position	:
Name	:
Credential	:
Telephone Number	:

Provider Enumeration Date	:	06/09/2005
Last Update Date	:	09/11/2025

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Directions to “ DR. ALLAN DOUGLAS SIEFKIN MD” Practice Location

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