Ernest Tsao, MD
Gastroenterology Physician · Baltimore, MD
Ernest Tsao, MD is a gastroenterology physician with a practice address in Baltimore, Maryland, and NPI 1790981256, issued on Jun 22, 2007. Check the license (Maryland D66308, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Ernest Tsao
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- D66308 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1838 Greene Tree RD, Baltimore, MD 21208
- Phone
- (410) 602-7782
- Enumerated
- Jun 22, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (410) 602-2438
- Medicare enrollment
- Enrolled (PECOS I20070911000974); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Also registered at 1838 Greene Tree RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leslie Abramowitz, M.D.Urology Physician1255388690
- Inna Bardoff, CRNPNurse Practitioner1801295803
- Andrew Barnstein, M.D.Cardiovascular Disease Physician1316940794
- Bruce Berger, M.D.Urology Physician1558324657
- Eric Blum, M.D.Gastroenterology Physician1447466289
- Lester Bowser, M.D.Gastroenterology Physician1043206873
Verify Ernest Tsao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D66308Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average gastroenterology physician in 2024
796 Medicare Part D claims for 292 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Linzess132 claims
- Sod Sulf-Potass Sulf-Mag Sulf123 claims
- Esomeprazole Magnesium74 claims
- Lubiprostone50 claims
- Famotidine36 claims
- Trulance31 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): 84.8 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).
Industry payments in 2024: $671.18
44 payments; by number, the most common kind was food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. 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
- Lifebridge Community Gastroenterology LLCPikesville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ernest Tsao among 505 gastroenterology physician records in Maryland
Ernest Tsao, MD 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 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 36% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2001 · median 2002 among the 344 with a school on file
- Record last updated2007 · 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
- Eric Blum, M.D.Baltimore, MD 212081447466289
- Lester Bowser, M.D.Baltimore, MD 212081043206873
- Steven Epstein, MDBaltimore, MD 212081811173636
- Ronald Ginsberg, MDBaltimore, MD 212081801877758
- Todd Heller, M.D.Baltimore, MD 212081053305763
- Loc Le, M.D.Baltimore, MD 212081194710517
- Kenolisa Onwueme, M.D., PH.D.Baltimore, MD 212081336283720
- Michael Siuta, M.D.Baltimore, MD 212081740274281
Common questions
What is Ernest Tsao, MD's NPI number?
Ernest Tsao, MD's National Provider Identifier (NPI) is 1790981256, issued on Jun 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ernest Tsao, MD located?
The NPPES record lists a practice address at 1838 Greene Tree RD, Baltimore, MD, 21208. Phone: (410) 602-7782. Providers update this record themselves, so call before visiting.
How can I verify Ernest Tsao, MD's license?
NPPES lists Maryland license number D66308, 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 Ernest Tsao, MD prescribe under Medicare Part D?
In 2024, Ernest Tsao, MD had 796 Medicare Part D claims for 292 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Ernest Tsao, MD's MIPS final score?
The 2023 MIPS final score is 84.8 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.