James Dawson Heffelfinger, M.D.
Infectious Disease Physician · San Rafael, CA
James Dawson Heffelfinger, M.D. is an infectious disease physician with a practice address in San Rafael, California, and NPI 1619931698, issued on Apr 14, 2006. Check the license (California G76725, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- James Dawson Heffelfinger
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- G76725 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3260 Kerner Blvd, San Rafael, CA 94901
- Phone
- (154) 481-5004
- Enumerated
- Apr 14, 2006
- Record last updated
- Mar 24, 2026
- Medicare enrollment
- Enrolled (PECOS I20260407001965); may accept Medicare assignment
- Medical or professional school
- New York Medical College, 1989
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 3260 Kerner Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melanie Austin, NP RN CNMAdvanced Practice Midwife1023111226
- Kiara Barbieri, MSN, CPNP-PCPediatric Nurse Practitioner1396361770
- Nicole Betenia, MD MPHObstetrics & Gynecology Physician1316309511
- Charles Bookoff, MDObstetrics & Gynecology Physician1982664496
- Suzette Burrous, FNP RN CNMAdvanced Practice Midwife1619075629
- Ayah El-Beshbeeshy, RDRegistered Dietitian1922548916
Verify James Dawson Heffelfinger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G76725Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
James Dawson Heffelfinger among 1,119 infectious disease physician records in California
James Dawson Heffelfinger, M.D. is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1989 · median 2003 among the 735 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,119 in California → Every provider in San Rafael → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Mary Ellen Guroy, MDSan Rafael, CA 949011801971882
- Rehan Syed, MD, MSCSan Rafael, CA 949031134653165
- Catherine Treseler, MDSan Rafael, CA 949031730251562
- David Witt, MDSan Rafael, CA 949031710061783
- Anucheat Chea, M.D.Greenbrae, CA 949041952663635
- Lael Duncan, MDKentfield, CA 949041447255740
- Rina Marfatia, M.B.B.S., M.D.Greenbrae, CA 949041508055138
- Gregg Tolliver, M.D.Greenbrae, CA 949041346286465
Common questions
What is James Dawson Heffelfinger, M.D.'s NPI number?
James Dawson Heffelfinger, M.D.'s National Provider Identifier (NPI) is 1619931698, issued on Apr 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Dawson Heffelfinger, M.D. located?
The NPPES record lists a practice address at 3260 Kerner Blvd, San Rafael, CA, 94901. Phone: (154) 481-5004. Providers update this record themselves, so call before visiting.
How can I verify James Dawson Heffelfinger, M.D.'s license?
NPPES lists California license number G76725, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.