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STEWART FONG MD
NPI 1659459436
Internal Medicine in Oakland, CA

Active since November 01, 2006PECOS EnrolledAccepts Medicare Assignment
835 WEBSTER STREET, OAKLAND, CA 94607(510) 318-5800(510) 986-8681 Get Directions Write a Review

NPPES record last updated: January 12, 2017. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Stewart Fong Md NPPES

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

STEWART FONG MD (NPI 1659459436) is an individual internal medicine provider in Oakland, California, licensed in California (G51405) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (1982).

NPPES Registry Identity

NPI1659459436
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSTEWART FONGCredential: MD
Location Address835 WEBSTER STREETOakland, CA 94607
Mailing Address835 Webster StreetOakland, CA 94607 · (510) 318-5800 · Fax (510) 986-8681
Phone(510) 318-5800
Fax(510) 986-8681
Sole ProprietorNo
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 1982
Enumeration DateNovember 1, 2006
Last NPPES UpdateJanuary 12, 2017
✔ NPI 1659459436 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 · G51405
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.
835 WEBSTER STREET, Oakland, CA 94607
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Other Identifiers 3

Medicare ID-Type Unspecified00G514050
Medicaid00G514050CA
Medicare UPINF16580

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stewart Fong Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234312927
PECOS Enrollment IDI20110317000315
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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94607 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

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

CHANGLIN WANG M.D.
Internal Medicine
835 WEBSTER STREET
OAKLAND, CA 94607
Alameda County (510) 318-5800

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 Stewart Fong's NPI number?

The NPI number for Stewart Fong is 1659459436. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Stewart Fong located?

Stewart Fong practices at 835 Webster Street, Oakland, CA 94607. The listed phone number is (510) 318-5800.

What is Stewart Fong's specialty?

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

Is Stewart Fong enrolled in Medicare?

Yes. Stewart Fong is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Stewart Fong was last updated on January 12, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.