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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
1207R00000XInternal Medicine PhysicianG032410CA
2207RC0200XCritical Care Medicine (Internal Medicine) PhysicianG032410CA
3207RP1001XPulmonary Disease PhysicianG032410CA

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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