William Tsao, MD
Neurology Physician · Baltimore, MD
William Tsao, MD is a neurology physician with a practice address in Baltimore, Maryland, and NPI 1073923777, issued on May 2, 2014. Check the license (Maryland D87508, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- William Tsao
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- D87508 MD
Self-reported in NPPES; status is on the state search - Practice location
- 600 N Wolfe Street, Baltimore, MD 21287
- Phone
- (410) 614-9671
- Enumerated
- May 2, 2014
- Record last updated
- Aug 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (410) 614-7536
- Medicare enrollment
- Enrolled (PECOS I20190906000648); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 526 in Maryland → Look up another NPI →
Also registered at 600 N Wolfe Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Avani AminHospitalist Physician1609300862
- Danielle Amundsen, MDInternal Medicine Physician1619514478
- Jake Awtry, MAStudent in an Organized Health Care Education/Training Program1700393600
- Alba Azola, MDPhysical Medicine & Rehabilitation Physician1366601056
Verify William Tsao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D87508Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average neurology physician in 2024
515 Medicare Part D claims for 152 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Gabapentin135 claims
- Pregabalin33 claims
- Nortriptyline Hcl30 claims
- Carbidopa-Levodopa24 claims
- Levetiracetam21 claims
- Pyridostigmine Bromide21 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: $81.41
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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.
Bills Medicare through one group practice
- Greater Baltimore Medical Center IncBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Tsao among 526 neurology physician records in Maryland
William Tsao, MD is one of 526 neurology physician records with a practice address in Maryland. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 80% of them.
- NPI issued2014 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2015 · median 2004 among the 325 with a school on file
- Record last updated2019 · 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 2084N0400X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Maryland
There are 526 neurology physician records in Maryland.
All 526 in Maryland → Every provider in Baltimore → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Eric Aldrich, M.D.Baltimore, MD 212871568426146
- Katrin Andreasson, M.D.Baltimore, MD 212871982668257
- Gregory Bergey, M.D.Baltimore, MD 212871740246123
- Robert Gerwin, M.D.Baltimore, MD 212871376597724
- Rebecca Gottesman, M.D.Baltimore, MD 212871720038011
- Daniel Hanley, M.D.Baltimore, MD 212871982654315
- Argye Hillis, M.D.Baltimore, MD 212871386695864
- Ahmet Hoke, M.D.Baltimore, MD 212871679525232
Common questions
What is William Tsao, MD's NPI number?
William Tsao, MD's National Provider Identifier (NPI) is 1073923777, issued on May 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is William Tsao, MD located?
The NPPES record lists a practice address at 600 N Wolfe Street, Baltimore, MD, 21287. Phone: (410) 614-9671. Providers update this record themselves, so call before visiting.
How can I verify William Tsao, MD's license?
NPPES lists Maryland license number D87508, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Tsao, MD prescribe under Medicare Part D?
In 2024, William Tsao, MD had 515 Medicare Part D claims for 152 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.