Ryan Tsu, MD
Neurology Physician · San Francisco, CA
Ryan Tsu, MD is a neurology physician with a practice address in San Francisco, California, and NPI 1720738214, issued on Mar 27, 2022. Check the license (California A208834, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan Tsu
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- A208834 CA
1720738214 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2330 Post St FL 6, San Francisco, CA 94115
- Phone
- (415) 353-8393
- Enumerated
- Mar 27, 2022
- Record last updated
- May 7, 2026
- Medicare enrollment
- Enrolled (PECOS I20260521003733); may accept Medicare assignment
- Medical or professional school
- R Franklin University Of Med & Sci/Chicago Medical School, 2022
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 2330 Post St FL 6
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarah Bobker, M.D.Neurology Physician1093169757
- Victoria Phoumthipphavong, MDNeurology Physician1609490861
Verify Ryan Tsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A208834Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average neurology physician in 2024
105 Medicare Part D claims for 25 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Levetiracetam16 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: $19.83
1 payment: food and beverage; the largest payer was Haemonetics Corporation. The 10,858 providers of this specialty with any payment received $8,318.07 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.
Ryan Tsu among 2,339 neurology physician records in California
Ryan Tsu, MD is one of 2,339 neurology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 97% of them.
- NPI issued2022 · 97% of these records are older, under 1% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2022 · median 2006 among the 1,628 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in San Francisco → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Sara Doster, M.D.,PH.D.San Francisco, CA 941151467526079
- Kenneth Fox, MDSan Francisco, CA 941151710065370
- Arnold Greenberg, M.D.San Francisco, CA 941151780616177
- Marina Kasavin, M.D., PH.D.San Francisco, CA 941151326015132
- Jonathan Katz, M.D.San Francisco, CA 941151457372823
- Morris Levin, M.D.San Francisco, CA 941151538117403
- Aaron Lewis, MDSan Francisco, CA 941151255419750
- Ko-Myong Lieu, MDSan Francisco, CA 941151376513846
Common questions
What is Ryan Tsu, MD's NPI number?
Ryan Tsu, MD's National Provider Identifier (NPI) is 1720738214, issued on Mar 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Tsu, MD located?
The NPPES record lists a practice address at 2330 Post St FL 6, San Francisco, CA, 94115. Phone: (415) 353-8393. Providers update this record themselves, so call before visiting.
How can I verify Ryan Tsu, MD's license?
NPPES lists California license number A208834, 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 Ryan Tsu, MD prescribe under Medicare Part D?
In 2024, Ryan Tsu, MD had 105 Medicare Part D claims for 25 beneficiaries; the average among neurology physician prescribers was 1,370. 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.