Dr. Stewart Fong, MD
- Medicare services, 2024
- 15
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 172
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 835 Webster St, Oakland, CA 94607
- Practice phone
- Call (510) 318-5800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Asian Health Services
Oakland, California
Find Dr. Fong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Stewart Fong is an internist in Oakland, California
Dr. Fong practices at Asian Health Services in Oakland, California.
Dr. Fong's NPI, 1659459436, was assigned on November 1, 2006. Dr. Fong graduated from UC Irvine School of Medicine in 1982. Dr. Fong's California license number on file is G51405.
- NPI
- 1659459436NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234312927
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 318-5800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stewart Fong practices at Asian Health Services in Oakland, California
Dr. Fong's primary practice is Asian Health Services, at 835 Webster St, Oakland, CA 94607 in Alameda County. The practice phone is (510) 318-5800.
- Asian Health Services835 Webster St, Oakland, CA 94607 · Alameda CountyPhone(510) 318-5800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stewart Fong is affiliated with 3 sites of care and 1 medical group
Dr. Fong's primary practice is Asian Health Services in Oakland, California. Dr. Fong is also affiliated with Alta Bates Summit Medical Center. The medical group on file is Asian Health Services. Dmand AI also links Dr. Fong to 1 more community health center, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stewart Fong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fong practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Asian Health Services | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stewart Fong is one of 16,751 internists in California
Internal medicine is Dr. Fong's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Fong is board certified in internal medicine by the American Board of Internal Medicine. Dr. Fong has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute skin infection, bipolar disorder, chronic diabetes, chronic hypertension, chronic obstructive pulmonary disease (COPD), conjunctivitis, contact dermatitis and enthesopathy in arms among the conditions Dr. Fong treats.
Internists near Dr. Fong
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stewart Fong billed Medicare for 15 services in 2024
CMS data shows 15 Medicare services from Dr. Fong across 1 procedure code in 2024, for 15 Medicare patients. Medicare paid $140 for them. Every service was in an office.
Dr. Fong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 232024: 1535%
Dr. Fong compared with the California median for internists, 2024
- Dr. Fong
- California median
- Medicare services
- 15vs 36196% below
- Medicare patients
- 15vs 15190% below
- Part D claims
- 54vs 42187% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Fong's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fong and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stewart Fong treated 15 Medicare patients in 2024, average age 74
CMS counts 15 Medicare patients who saw Dr. Fong in 2024. The largest group is under 65, with 0 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 100% are also on Medicaid. Their average risk score is 0.74, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fong's median patient age at 72, with 61% women.
Dr. Fong's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Fong's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stewart Fong wrote 172 Medicare Part D claims in 2024
In 2024, Dr. Fong wrote 172 Medicare Part D claims for 80 patients. 81% of them were for generic drugs. CMS names the drug for 54 of them, across 3 drugs with 11 or more claims each, at $206 in total drug cost. In 2023, CMS named 77 claims across 3 drugs.
Dr. Fong's Part D claims by kind of drug, 2024
- Generic140 claims81%
- Brand-name and other32 claims19%
Dr. Fong's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Fong's Part D claims, 2024
- Antibiotics8%13 of 172 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 772024: 5430%
Drugs named by CMS: 3 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Stewart Fong takes part in Medicare
Dr. Fong accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Stewart Fong has 1 award and honors on record
Dmand AI lists 1 award for Dr. Fong, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Fong
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Stewart Fong graduated from UC Irvine School of Medicine
Dr. Fong graduated from UC Irvine School of Medicine in 1982.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Stewart Fong accepts plans from 1 insurance carrier
Dr. Fong is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Stewart Fong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stewart Fong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stewart Fong's NPI number?
Dr. Stewart Fong's NPI number is 1659459436. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stewart Fong?
Dr. Stewart Fong is an internist in Oakland, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Stewart Fong practice?
Dr. Fong practices at 835 Webster St, Oakland, CA 94607. Dr. Fong's primary practice is Asian Health Services in Oakland, California. Dmand AI also links Dr. Fong to 1 community health center.
What is Dr. Stewart Fong's office phone number?
The practice phone on file for Dr. Fong is (510) 318-5800.
What is Dr. Stewart Fong's medical license number?
Dr. Fong's California license number on file is G51405.
Which hospitals is Dr. Stewart Fong affiliated with?
Dr. Fong is affiliated with Alta Bates Summit Medical Center.
What medical group is Dr. Stewart Fong part of?
Dr. Fong is linked to Asian Health Services.
Does Dr. Stewart Fong accept Medicare?
Yes. CMS data shows Dr. Fong billed Medicare for 15 services in 2024, and Dr. Fong accepts Medicare assignment.
How many Medicare patients does Dr. Stewart Fong see?
CMS counts 15 Medicare patients who saw Dr. Fong in 2024, with an average age of 74.
Is Dr. Stewart Fong board certified?
Yes. Dr. Fong is board certified in internal medicine by the American Board of Internal Medicine.
Show 5 more questionsShow fewer questions
What services does Dr. Stewart Fong bill to Medicare?
In 2024, Dr. Fong's most billed Medicare services were heart test or procedure (93000).
Where did Dr. Stewart Fong go to medical school?
Dr. Fong graduated from UC Irvine School of Medicine in 1982.
What drugs does Dr. Stewart Fong prescribe most?
In 2024 Medicare Part D data, Dr. Fong's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Losartan Potassium.
How long has Dr. Stewart Fong been practicing?
Dr. Fong graduated from medical school in 1982, 44 years ago.
What insurance does Dr. Stewart Fong accept?
Dr. Fong is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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