William M. Tsai
Physical Medicine & Rehabilitation Physician · Washington, DC
William M. Tsai is a physical medicine & rehabilitation physician with a practice address in Washington, District of Columbia, and NPI 1760987663, issued on Mar 24, 2018. Check the license (District of Columbia MD210011798, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- William M. Tsai
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- MD210011798 DC
Self-reported in NPPES; status is on the state search - Practice location
- 102 Irving St NW, Washington, DC 20010
- Phone
- (202) 877-1488
- Enumerated
- Mar 24, 2018
- Record last updated
- Oct 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20231004000497); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 69 in District of Columbia → Look up another NPI →
Also registered at 102 Irving St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diana Abdalla, PTPhysical Therapist1740578806
- Alyssa Adams, PSY.D.Clinical Psychologist1861740854
- Leslie Adams, RDRegistered Dietitian1851660401
- Syed Ahmed, M.D.Physical Medicine & Rehabilitation Physician1578974838
- Hannah Akre, DOStudent in an Organized Health Care Education/Training Program1225732753
- Victoria AlexanderAthletic Trainer1225540412
Verify William M. Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD210011798Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
80 Medicare Part D claims for 25 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Baclofen23 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Medstar Medical Group II LLCWashington, DC
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William M. Tsai among 69 physical medicine & rehabilitation physician records in District of Columbia
William M. Tsai is one of 69 physical medicine & rehabilitation physician records with a practice address in District of Columbia. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 70% of them.
- NPI issued2018 · 70% of these records are older, 25% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2018 · median 2011 among the 36 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in District of Columbia
There are 69 physical medicine & rehabilitation physician records in District of Columbia.
All 69 in District of Columbia → Every provider in Washington → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- John Aseff, MDWashington, DC 200101184628414
- Pamela Ballard, MDWashington, DC 200101366410722
- Kritis Dasgupta, MDWashington, DC 200101346278355
- Kathleen Fink, M.D.Washington, DC 200101841209582
- Howard Gilmer, D.O.Washington, DC 200101265435291
- Suzanne Groah, M.D.Washington, DC 200101750391967
- Marion McAlpine, M.D.Washington, DC 200101508862962
- Fatemeh Milani, M.D.Washington, DC 200101487767927
Common questions
What is William M. Tsai's NPI number?
William M. Tsai's National Provider Identifier (NPI) is 1760987663, issued on Mar 24, 2018. An NPI identifies a provider in billing; it is not a license.
Where is William M. Tsai located?
The NPPES record lists a practice address at 102 Irving St NW, Washington, DC, 20010. Phone: (202) 877-1488. Providers update this record themselves, so call before visiting.
How can I verify William M. Tsai's license?
NPPES lists District of Columbia license number MD210011798, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William M. Tsai prescribe under Medicare Part D?
In 2024, William M. Tsai had 80 Medicare Part D claims for 25 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
What is William M. Tsai's MIPS final score?
The 2023 MIPS final score is 80.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.