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MARK OSCHERWITZ MD
NPI 1437225059
Internal Medicine in San Francisco, CA

Active since November 27, 2006PECOS Enrolled
1199 BUSH STREET, SUITE #400, SAN FRANCISCO, CA 94109(415) 673-7600(415) 673-8065 Get Directions Write a Review

NPPES record last updated: December 17, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mark Oscherwitz Md NPPES

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

MARK OSCHERWITZ MD (NPI 1437225059) is an individual internal medicine provider in San Francisco, California, licensed in California (C020057) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1437225059
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARK OSCHERWITZCredential: MD
Location Address1199 BUSH STREET, SUITE #400San Francisco, CA 94109
Mailing Address1199 Bush Street, Suite #400San Francisco, CA 94109 · (415) 673-7600 · Fax (415) 673-8065
Phone(415) 673-7600
Fax(415) 673-8065
Sole ProprietorNo
Enumeration DateNovember 27, 2006
Last NPPES UpdateDecember 17, 2007
✔ NPI 1437225059 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 · C020057
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.
1199 BUSH STREET, San Francisco, CA 94109
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Other Identifiers 4

Medicare ID-Type Unspecified00C200570
Other11725169Medicare Rr
Medicaid00C200570CA
Medicare UPINE24777

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Oscherwitz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94109 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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 7

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

DR. KENNETH J HAMMERMAN MD
Internal Medicine (Gastroenterology)
1199 BUSH STREET, SUITE #500
SAN FRANCISCO, CA 94109
San Francisco County (415) 673-7600
LISA B KASALAJTIS MD
Internal Medicine
1199 BUSH STREET, SUITE 400
SAN FRANCISCO, CA 94109
San Francisco County (415) 673-7600
DR. CLEMENT KEVIN JONES MD
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
1199 BUSH STREET, SUITE 640
SAN FRANCISCO, CA 94109
San Francisco County (415) 563-6325
DIANA LAM MD
Internal Medicine (Cardiovascular Disease)
1199 BUSH STREET, #560
SAN FRANCISCO, CA 94109
San Francisco County (415) 664-9183
BAYSPRING MEDICAL GROUP A PROFESSIONAL CORPORATION
Internal Medicine
1199 BUSH STREET, SUITE # 500
SAN FRANCISCO, CA 94109
San Francisco County (415) 267-2600
SHEENA XINNA KONG MD
Internal Medicine
1199 BUSH STREET, SUITE 400
SAN FRANCISCO, CA 94109
San Francisco County (415) 673-7600
SAN FRANCISCO INTERNAL MEDICINE ASSOC A MEDICAL GROUP
Internal Medicine
1199 BUSH STREET, SUITE #500
SAN FRANCISCO, CA 94109
San Francisco County (415) 673-7600

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 Mark Oscherwitz's NPI number?

The NPI number for Mark Oscherwitz is 1437225059. It was assigned to this individual provider in the NPPES registry on November 27, 2006.

Where is Mark Oscherwitz located?

Mark Oscherwitz practices at 1199 Bush Street Suite #400, San Francisco, CA 94109. The listed phone number is (415) 673-7600.

What is Mark Oscherwitz's specialty?

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

Is Mark Oscherwitz enrolled in Medicare?

Yes. Mark Oscherwitz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Oscherwitz was last updated on December 17, 2007. 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.