Cynthia J. Tsay
Gastroenterology Physician · Baltimore, MD
Cynthia J. Tsay is a gastroenterology physician with a practice address in Baltimore, Maryland, and NPI 1346730660, issued on May 11, 2018. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Cynthia J. Tsay
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 7PT226K8 NY
Self-reported in NPPES; status is on the state search - Practice location
- 600 N Wolfe St, Baltimore, MD 21287
- Phone
- (410) 955-2635
- Enumerated
- May 11, 2018
- Record last updated
- Sep 18, 2024
- Medicare enrollment
- Enrolled (PECOS I20240829003253); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Also registered at 600 N Wolfe St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cynthia J. Tsay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck 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 gastroenterology physician in 2024
66 Medicare Part D claims for 26 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole13 claims
- Famotidine12 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: $383.22
11 payments; by number, the most common kind was food and beverage; the largest payer was Intercept Pharmaceuticals, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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
- Weill Medical College OF CornellNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cynthia J. Tsay among 505 gastroenterology physician records in Maryland
Cynthia J. Tsay is one of 505 gastroenterology physician records with a practice address in Maryland. 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 2018, is newer than 93% of them.
- NPI issued2018 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2018 · median 2002 among the 344 with a school on file
- Record last updated2024 · 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 207RG0100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Maryland
There are 505 gastroenterology physician records in Maryland.
All 505 in Maryland → Every provider in Baltimore → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Marcia Canto, M.D.Baltimore, MD 212871992763015
- Mark Donowitz, M.D.Baltimore, MD 212871306893342
- Francis Giardiello, M.D.Baltimore, MD 212871437103645
- Michael Goggins, M.D.Baltimore, MD 212871861445983
- Ahmet Gurakar, MDBaltimore, MD 212871154330363
- Mary Harris, M.D.Baltimore, MD 212871932159738
- Anthony Kalloo, M.D.Baltimore, MD 212871881638153
- Sergey Kantsevoy, M.D., PH.D.Baltimore, MD 212871912954181
Common questions
What is Cynthia J. Tsay's NPI number?
Cynthia J. Tsay's National Provider Identifier (NPI) is 1346730660, issued on May 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia J. Tsay located?
The NPPES record lists a practice address at 600 N Wolfe St, Baltimore, MD, 21287. Phone: (410) 955-2635. Providers update this record themselves, so call before visiting.
How can I verify Cynthia J. Tsay's license?
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 Cynthia J. Tsay prescribe under Medicare Part D?
In 2024, Cynthia J. Tsay had 66 Medicare Part D claims for 26 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.