Marc E. Chapman, M.D.
Internal Medicine Physician · Euless, TX
Marc E. Chapman, M.D. is an internal medicine physician with a practice address in Euless, Texas, and NPI 1679578777, issued on Jun 15, 2005. Check the license (Texas L1000, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marc E. Chapman
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- L1000 TX
Self-reported in NPPES; status is on the state search - Practice location
- 469 Westpark Way, Euless, TX 76040
- Phone
- (817) 283-2888
- Enumerated
- Jun 15, 2005
- Record last updated
- Mar 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (817) 283-1181
- Medicare enrollment
- Enrolled (PECOS I20100219000309); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 469 Westpark Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marty Buchanan, M.D.Internal Medicine Physician1649275744
- Stephen Buksh, M.D.Internal Medicine Physician1427053396
- Michael Karing, M.D.Internal Medicine Physician1356346746
- Rebeca Mayol-Sharp, M.D.Internal Medicine Physician1962407353
- James Thesing, D.O.Internal Medicine Physician1477558864
- Phu Truong, D.O.Internal Medicine Physician1750668448
Verify Marc E. Chapman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L1000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.0 times the Medicare Part D claims of the average internal medicine physician in 2024
12,765 Medicare Part D claims for 740 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 228 claims were for opioids.
Most prescribed
- Atorvastatin Calcium878 claims
- Levothyroxine Sodium572 claims
- Amlodipine Besylate493 claims
- Metformin Hcl422 claims
- Losartan Potassium387 claims
- Pantoprazole Sodium345 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $422.08
20 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Catalyst Physician Group - Ntx, PLLCEuless, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
20 internal medicine physician records list a practice address in Euless
They are 20 of the 387 NPPES records with a practice address in Euless, and 9,175 internal medicine physician records in Texas.
All 20 in Euless → All 9,175 in Texas → Every provider in Euless →
Other internal medicine physician records in Texas
- Muhammad A. Sattar, MDDallas, TX1760465553
- Gayatri Aaluri, MDGalveston, TX1821928508
- Anunaya AashishDenton, TX1134246374
- Queenie Ann Abad, M.D.San Antonio, TX1174979785
- Fuad Abaleka, M.DLubbock, TX1861925596
- Carol Abalihi, M.D.El Paso, TX1326136243
- Oliverio Abarca Guzman, MDHarlingen, TX1346972940
- Obinna Abaribe, M.DMansfield, TX1457704355
- Enyinnaya Abarikwu, MDTyler, TX1174788178
- Sulaiman Abawi, D.O.Frisco, TX1780845255
Common questions
What is Marc E. Chapman, M.D.'s NPI number?
Marc E. Chapman, M.D.'s National Provider Identifier (NPI) is 1679578777, issued on Jun 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marc E. Chapman, M.D. located?
The NPPES record lists a practice address at 469 Westpark Way, Euless, TX, 76040. Phone: (817) 283-2888. Providers update this record themselves, so call before visiting.
How can I verify Marc E. Chapman, M.D.'s license?
NPPES lists Texas license number L1000, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc E. Chapman, M.D. prescribe under Medicare Part D?
In 2024, Marc E. Chapman, M.D. had 12,765 Medicare Part D claims for 740 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Marc E. Chapman, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.