Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

David Fan, MD

Individual provider Allergy & Immunology Physician · NPI 1619596152

David Fan, MD is an Allergy/Immunology in Walnut Creek, California. Graduated from R Franklin University of Med & SCI/Chicago Medical School in 2020, 6 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
6
Trained at
R Franklin University of Med & SCI/Chicago Medical School
Licensed in
CA
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

320 Lennon Ln Bldg 3
Walnut Creek, CA 94598-2419
Phone: (925) 906-2015
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence A176237 (CA)

Record details

NPI number1619596152
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 14, 2020
Last updated in NPPESJune 24, 2025
Certification dateJune 24, 2025
Mailing address3050 Del Hombre Ln Apt 549, Walnut Creek, CA 94597-2366

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolR FRANKLIN UNIVERSITY OF MED & SCI/CHICAGO MEDICAL SCHOOL
Graduated 2020 (6 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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