Marilyn Tin Wong, MD
Internal Medicine Physician · San Jose, CA
Marilyn Tin Wong, MD is an internal medicine physician with a practice address in San Jose, California, and NPI 1447458138, issued on Jul 5, 2007. Check the license (California A90356, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marilyn Tin Wong
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A90356 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2690 S White RD, San Jose, CA 95148
- Phone
- (408) 223-8118
- Enumerated
- Jul 5, 2007
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (408) 228-8463
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
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Verify Marilyn Tin Wong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90356Check 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% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,909 Medicare Part D claims for 182 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 34 claims were for opioids.
Most prescribed
- Furosemide209 claims
- Atorvastatin Calcium147 claims
- Levothyroxine Sodium127 claims
- Gabapentin105 claims
- Pradaxa98 claims
- Potassium Chloride83 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.
Marilyn Tin Wong among 17,696 internal medicine physician records in California
Marilyn Tin Wong, MD 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 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).
428 internal medicine physician records list a practice address in San Jose
They are 428 of the 20,925 NPPES records with a practice address in San Jose, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Jose → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dominic Chiong, M.D.San Jose, CA 951481093749715
- Joseph Cu, M.D.San Jose, CA 951481912086364
- Maryam Hassanpour, D.O.San Jose, CA 951481154742831
- Shallu Singh, M.D.San Jose, CA 951481396933180
- Swaroopa Bussa, MDSan Jose, CA 951381003994856
- Albert Liang, M.D.San Jose, CA 951381659311025
- Nayyar Masood, M.D.San Jose, CA 951381639499866
- Shailender Singh, M.D.San Jose, CA 951381770783292
Common questions
What is Marilyn Tin Wong, MD's NPI number?
Marilyn Tin Wong, MD's National Provider Identifier (NPI) is 1447458138, issued on Jul 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn Tin Wong, MD located?
The NPPES record lists a practice address at 2690 S White RD, San Jose, CA, 95148. Phone: (408) 223-8118. Providers update this record themselves, so call before visiting.
How can I verify Marilyn Tin Wong, MD's license?
NPPES lists California license number A90356, 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 Marilyn Tin Wong, MD prescribe under Medicare Part D?
In 2024, Marilyn Tin Wong, MD had 2,909 Medicare Part D claims for 182 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.