Dr James Dawson Heffelfinger, MD - Medicare Infectious Disease in San Rafael, CA

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Dr James Dawson Heffelfinger, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in San Rafael, California. He went to New York Medical College and graduated in 1989 and has 37 years of diverse experience with area of expertise as Infectious Disease. His current practice location is 3260 Kerner Blvd, San Rafael, California. You can reach out to his office (for appointments etc.) via phone at (154) 481-5004.

Dr James Dawson Heffelfinger is licensed to practice in California (license number G76725) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1619931698.

Contact Information

Dr James Dawson Heffelfinger, MD
3260 Kerner Blvd,
San Rafael, CA 94901-4840
(154) 481-5004
Not Available

Map and Direction




Physician's Profile

Full NameDr James Dawson Heffelfinger
GenderMale
SpecialityInfectious Disease
Experience37 Years
Location3260 Kerner Blvd, San Rafael, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr James Dawson Heffelfinger attended and graduated from New York Medical College in 1989
  NPI Data:
  • NPI Number: 1619931698
  • Provider Enumeration Date: 04/14/2006
  • Last Update Date: 03/24/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3173098134
  • Enrollment ID: I20260407001965

Medical Identifiers

Medical identifiers for Dr James Dawson Heffelfinger such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619931698NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease G76725 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr James Dawson Heffelfinger allows following entities to bill medicare on his behalf.
Entity NameCounty of San Mateo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679642326
PECOS PAC ID: 9032023171
Enrollment ID: O20031126000292
Entity NamePacific Inpatient Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447447248
PECOS PAC ID: 6608956966
Enrollment ID: O20071228000213

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr James Dawson Heffelfinger is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr James Dawson Heffelfinger, MD
3260 Kerner Blvd Ste 130,
San Rafael, CA 94901-4840

Ph: (415) 448-1500		Dr James Dawson Heffelfinger, MD
3260 Kerner Blvd,
San Rafael, CA 94901-4840

Ph: (154) 481-5004

Reviews and Comments


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Jeffrey S. Harris, MD
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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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