Siefkin, Allan Douglas

Siefkin, Allan Douglas is an individual health care provider with primary practice located at 2315 Stockton Blvd , Sacramento CA 95817-2201. He recently has 3 registered licenses in different health care specialties including Allopathic & Osteopathic Physicians / Internal Medicine, Allopathic & Osteopathic Physicians / Critical Care Medicine, Allopathic & Osteopathic Physicians / Pulmonary Disease. Allopathic & Osteopathic Physicians / Internal Medicine is his primary health care specialty. Siefkin, Allan Douglas can be contacted via phone (916) 734-1166.

Contact Information

Primary practice address
2315 Stockton Blvd Sacramento CA 95817-2201
Phone: (916) 734-1166
Fax: (916) 734-3234
Website:
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Health care specialties

SpecialtyCodeLicense #State
Allopathic & Osteopathic Physicians / Internal Medicine 207R00000X G032410 California
Allopathic & Osteopathic Physicians / Critical Care Medicine 207RC0200X G032410 California
Allopathic & Osteopathic Physicians / Pulmonary Disease 207RP1001X G032410 California

Profile Details

NPI number 1033113758
LBN Legal business name Siefkin, Allan Douglas
Credentials Doctor of Medicine (MD)
Entity Individual
Sole proprietor 1 No
Enumeration date Jun 9th, 2005
Last updated Jul 13th, 2026 - about 3 months ago

1 A sole proprietor/sole proprietorship is an individual, and in that capacity, is qualified for a solitary NPI number. The sole proprietor have to apply for the NPI number using his or her own particular Social Security Number (SSN), instead of Employer Identification Number (EIN) regardless of whether he/she has an EIN.

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