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DR. ALFRED DAVID OPPENHEIM M.D.
NPI 1023028917
Internal Medicine in Corte Madera, CA

Active since August 09, 2006Opted out of Medicare · through Jul 1, 2027
770 TAMALPAIS DR, SUITE 203, CORTE MADERA, CA 94925(415) 945-8808(415) 945-8818 Get Directions Write a Review

NPPES record last updated: June 2, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Alfred David Oppenheim M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ALFRED DAVID OPPENHEIM M.D. (NPI 1023028917) is an individual internal medicine provider in Corte Madera, California, licensed in California (G57635) and active in the NPI registry since August 2006. He has opted out of Medicare through July 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1023028917
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ALFRED DAVID OPPENHEIMCredential: M.D.
Location Address770 TAMALPAIS DR, SUITE 203Corte Madera, CA 94925-1700
Mailing Address770 Tamalpais Dr, Suite 203Corte Madera, CA 94925-1700 · (415) 945-8808 · Fax (415) 945-8818
Phone(415) 945-8808
Fax(415) 945-8818
Sole ProprietorYes
Enumeration DateAugust 9, 2006
Last NPPES UpdateJune 2, 2008
✔ NPI 1023028917 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G57635
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
770 TAMALPAIS DR, Corte Madera, CA 94925
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Other Identifiers 2

Medicare UPINA53317CA
Medicare PIN00G576351CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Alfred David Oppenheim M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from July 1, 2013 through July 1, 2027.

Opt-Out Effective DateJuly 1, 2013
Opt-Out In Effect ThroughJuly 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94925 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$154.04 typical visit price
range $69.07 – $202.63
Typical copayment $38.51 (range $17.26 – $50.65)
Most-billed visit code 99204
Established Patient
$119.61 typical visit price
range $23.44 – $166.64
Typical copayment $29.90 (range $5.86 – $41.66)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RICHARD EARL SCHMOTTER DDS
Dentist
770 TAMALPAIS DR, 304
CORTE MADERA, CA 94925
Marin County (415) 927-4000
ELIZABETH H LOWE M.D.
Pediatrics
770 TAMALPAIS DR, SUITE 203
CORTE MADERA, CA 94925
Marin County (415) 945-8808
DR. SAJOT S GREWAL M.D.
Internal Medicine
770 TAMALPAIS DR, SUITE 203
CORTE MADERA, CA 94925
Marin County (415) 945-8808
DR. LUISA AMBROSIANO D.D.S.
Dentist (General Practice)
770 TAMALPAIS DR, SUITE #205
CORTE MADERA, CA 94925
Marin County (415) 924-2022
DR. ALISON SMITH M.D.
Surgery
770 TAMALPAIS DR, SUITE 402
CORTE MADERA, CA 94925
Marin County (415) 927-7900
NORTH BAY INTERNAL MEDICINE AND PEDIATRICS
Clinic/Center (Medical Specialty)
770 TAMALPAIS DR, SUITE 203
CORTE MADERA, CA 94925
Marin County (415) 945-8808
HEARINGLIFE HEARING AID CENTER LLC
Clinic/Center (Hearing and Speech)
770 TAMALPAIS DR, STE 264
CORTE MADERA, CA 94925
Marin County (415) 945-9148
DR. ALEXANDER KASHEF DDS, MD
Dentist (Oral and Maxillofacial Surgery)
770 TAMALPAIS DR, SUITE 408
CORTE MADERA, CA 94925
Marin County (475) 924-6939

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alfred Oppenheim's NPI number?

The NPI number for Alfred Oppenheim is 1023028917. It was assigned to this individual provider in the NPPES registry on August 9, 2006.

Where is Alfred Oppenheim located?

Alfred Oppenheim practices at 770 Tamalpais Dr Suite 203, Corte Madera, CA 94925. The listed phone number is (415) 945-8808.

What is Alfred Oppenheim's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Alfred Oppenheim enrolled in Medicare?

No. Alfred Oppenheim has opted out of Medicare through July 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Alfred Oppenheim was last updated on June 2, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.