Thomas Walter Abernathy, M.D.
Gastroenterology Physician · Catonsville, MD
Thomas Walter Abernathy, M.D. is a gastroenterology physician with a practice address in Catonsville, Maryland, and NPI 1538105697, issued on Jun 20, 2006. Check the license (Maryland D0061137, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Thomas Walter Abernathy
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- D0061137 MD
Self-reported in NPPES; status is on the state search - Practice location
- 700 Geipe RD, Catonsville, MD 21228
- Phone
- (410) 247-7500
- Enumerated
- Jun 20, 2006
- Record last updated
- Aug 8, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (410) 737-8424
- Medicaid ID
- 008505700 MD
- Medicare enrollment
- Enrolled (PECOS I20050922000972); accepts Medicare assignment
- Medical or professional school
- Drexel University College Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Also registered at 700 Geipe RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Muhammad Afzal, M.D.Gastroenterology Physician1578561833
- Andrew Averbach, M.D.Surgery Physician1598832990
- Allen Banegura, M.D.Gastroenterology Physician1780895854
- Jane Brannon, P.T.Physical Therapist1982652590
- Amanda Costabile, P.T.Physical Therapist1467419424
- Ermanno Costabile, P.T.Physical Therapist1417913450
Verify Thomas Walter Abernathy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0061137Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average gastroenterology physician in 2024
588 Medicare Part D claims for 238 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf137 claims
- Famotidine104 claims
- Pantoprazole Sodium43 claims
- Omeprazole36 claims
- Dicyclomine Hcl35 claims
- Esomeprazole Magnesium32 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 MIPS final score for 2023 (Medicare payment program): 8.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,576.27
71 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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
- Chesapeake Digestive Associates, PCColumbia, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Walter Abernathy among 505 gastroenterology physician records in Maryland
Thomas Walter Abernathy, M.D. 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 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1999 · median 2002 among the 344 with a school on file
- Record last updated2014 · 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).
11 gastroenterology physician records list a practice address in Catonsville
They are 11 of the 1,023 NPPES records with a practice address in Catonsville, and 505 gastroenterology physician records in Maryland.
All 505 in Maryland → Every provider in Catonsville → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Muhammad Afzal, M.D.Catonsville, MD 212281578561833
- Allen Banegura, M.D.Catonsville, MD 212281780895854
- Christopher Kim, M.D.Catonsville, MD 212281922006931
- Ghita Moussaide, M.D.Catonsville, MD 212281649535667
- Natarajan Ravendhran, M.D.Catonsville, MD 212281821071069
- Justin Rosemore, D.O.Catonsville, MD 212281861491425
- Louis Salas, M.D.Catonsville, MD 212281164420154
- Neeraj Sardana, M.D.Catonsville, MD 212281679783021
Common questions
What is Thomas Walter Abernathy, M.D.'s NPI number?
Thomas Walter Abernathy, M.D.'s National Provider Identifier (NPI) is 1538105697, issued on Jun 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Walter Abernathy, M.D. located?
The NPPES record lists a practice address at 700 Geipe RD, Catonsville, MD, 21228. Phone: (410) 247-7500. Providers update this record themselves, so call before visiting.
How can I verify Thomas Walter Abernathy, M.D.'s license?
NPPES lists Maryland license number D0061137, 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 Thomas Walter Abernathy, M.D. prescribe under Medicare Part D?
In 2024, Thomas Walter Abernathy, M.D. had 588 Medicare Part D claims for 238 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Thomas Walter Abernathy, M.D.'s MIPS final score?
The 2023 MIPS final score is 8.8 of 100. 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.