Gustin Ming Sun Ho, M.D.
Internal Medicine Physician · San Francisco, CA
Gustin Ming Sun Ho, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1437189966, issued on Jul 3, 2006. Check the license (California A49169, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gustin Ming Sun Ho
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A49169 CA
Self-reported in NPPES; status is on the state search - Practice location
- 929 Clay St, San Francisco, CA 94108
- Phone
- (415) 982-4100
- Enumerated
- Jul 3, 2006
- Record last updated
- Oct 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (415) 982-6900
- Medicare enrollment
- Enrolled (PECOS I20090204000478); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 929 Clay St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Clifford Chew, MDOtolaryngology Physician1215036066
- Raymond Fay, MDUrology Physician1003808338
- Wenwu Jin, M.D., PH.D.Urology Physician1003051780
- Chuk Kwan, M.D.Internal Medicine Physician1336101500
Verify Gustin Ming Sun Ho in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A49169Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.1 times the Medicare Part D claims of the average internal medicine physician in 2024
25,693 Medicare Part D claims for 1,693 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 72 claims were for opioids.
Most prescribed
- Atorvastatin Calcium2,113 claims
- Losartan Potassium1,432 claims
- Amlodipine Besylate1,345 claims
- Metoprolol Succinate874 claims
- Metformin Hcl731 claims
- Triamcinolone Acetonide704 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $894.05
36 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Chinese Hospital AssociationSan Francisco, CA
- HO Medical Group IncSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gustin Ming Sun Ho among 17,696 internal medicine physician records in California
Gustin Ming Sun Ho, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1989 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mai-Sie Chan, MDSan Francisco, CA 941081326136557
- Shu Wing Chan, MDSan Francisco, CA 941081497828586
- Jerome Jew, M.D.San Francisco, CA 941081235143702
- Chuk Kwan, M.D.San Francisco, CA 941081336101500
- Lisa Law, M.D.San Francisco, CA 941081518030543
- Kerri Masutto, M.D.San Francisco, CA 941081780913442
- Justin Quock, M.D., F.A.C.P.San Francisco, CA 941081699792663
- Raphael Stricker, M.D.San Francisco, CA 941081417028044
Common questions
What is Gustin Ming Sun Ho, M.D.'s NPI number?
Gustin Ming Sun Ho, M.D.'s National Provider Identifier (NPI) is 1437189966, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gustin Ming Sun Ho, M.D. located?
The NPPES record lists a practice address at 929 Clay St, San Francisco, CA, 94108. Phone: (415) 982-4100. Providers update this record themselves, so call before visiting.
How can I verify Gustin Ming Sun Ho, M.D.'s license?
NPPES lists California license number A49169, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gustin Ming Sun Ho, M.D. prescribe under Medicare Part D?
In 2024, Gustin Ming Sun Ho, M.D. had 25,693 Medicare Part D claims for 1,693 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.