Neda Ratanawongsa, MD
Internal Medicine Physician · San Francisco, CA
Neda Ratanawongsa, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1598769002, issued on Jun 13, 2005. Check the license (California A76954, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Neda Ratanawongsa
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A76954 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Potrero Ave, San Francisco, CA 94110
- Phone
- (410) 206-8494
- Enumerated
- Jun 13, 2005
- Record last updated
- Oct 1, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (415) 206-6115
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1001 Potrero Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Abbs, M.D.Internal Medicine Physician1295269983
- Atokena AbeStudent in an Organized Health Care Education/Training Program1043130149
- Mary Ann AbilleRegistered Nurse1699155804
- Nasrin Aboudamous, FNPFamily Nurse Practitioner1699579912
- Elizabeth AdvientoRegistered Nurse1124968987
- Rocio Agraz-Lara, RN, PHNRegistered Nurse1003075995
Verify Neda Ratanawongsa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A76954Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,385 Medicare Part D claims for 75 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. 29 claims were for opioids.
Most prescribed
- Atorvastatin Calcium107 claims
- Losartan Potassium93 claims
- Amlodipine Besylate76 claims
- Clozapine62 claims
- Metformin Hcl55 claims
- Jardiance48 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.
Neda Ratanawongsa among 17,696 internal medicine physician records in California
Neda Ratanawongsa, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2014 · 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 →
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Common questions
What is Neda Ratanawongsa, MD's NPI number?
Neda Ratanawongsa, MD's National Provider Identifier (NPI) is 1598769002, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Neda Ratanawongsa, MD located?
The NPPES record lists a practice address at 1001 Potrero Ave, San Francisco, CA, 94110. Phone: (410) 206-8494. Providers update this record themselves, so call before visiting.
How can I verify Neda Ratanawongsa, MD's license?
NPPES lists California license number A76954, 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 Neda Ratanawongsa, MD prescribe under Medicare Part D?
In 2024, Neda Ratanawongsa, MD had 1,385 Medicare Part D claims for 75 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.