George Michael Markus, M.D.
Internal Medicine Physician · Dallas, TX
George Michael Markus, M.D. is an internal medicine physician with a practice address in Dallas, Texas, and NPI 1295831535, issued on Sep 15, 2006. Check the license (Texas F6905, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- George Michael Markus
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- F6905 TX
Self-reported in NPPES; status is on the state search - Practice location
- 17177 Preston RD Ste 120, Dallas, TX 75248
- Phone
- (214) 899-0860
- Enumerated
- Sep 15, 2006
- Record last updated
- Jan 16, 2026
- Fax
- (214) 889-8540
- Medicare enrollment
- Enrolled (PECOS I20080423000551); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Verify George Michael Markus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license F6905Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.9 times the Medicare Part D claims of the average internal medicine physician in 2024
12,454 Medicare Part D claims for 917 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. 104 claims were for opioids.
Most prescribed
- Levothyroxine Sodium649 claims
- Amlodipine Besylate449 claims
- Rosuvastatin Calcium409 claims
- Atorvastatin Calcium395 claims
- Metformin Hcl386 claims
- Gabapentin377 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): 96.6 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: $143.11
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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.
George Michael Markus among 9,175 internal medicine physician records in Texas
George Michael Markus, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1980 · median 2004 among the 6,088 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
956 internal medicine physician records list a practice address in Dallas
They are 956 of the 36,304 NPPES records with a practice address in Dallas, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Dallas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Syed Ahmed, D.O.Dallas, TX 752481477811321
- Daniel Mackay, MDDallas, TX 752481962450916
- Tri Nguyen, MDDallas, TX 752481427155829
- Randy Davis, D.O.Dallas, TX 752471952541088
- Anthony Doti, MDDallas, TX 752471760403679
- Chimkama Ibe, M.DDallas, TX 752471366606337
- Bonnie Lammers, M.D.Dallas, TX 752471679767776
- Sharon Larkin, M.D.Dallas, TX 752471548399975
Common questions
What is George Michael Markus, M.D.'s NPI number?
George Michael Markus, M.D.'s National Provider Identifier (NPI) is 1295831535, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is George Michael Markus, M.D. located?
The NPPES record lists a practice address at 17177 Preston RD Ste 120, Dallas, TX, 75248. Phone: (214) 899-0860. Providers update this record themselves, so call before visiting.
How can I verify George Michael Markus, M.D.'s license?
NPPES lists Texas license number F6905, 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 George Michael Markus, M.D. prescribe under Medicare Part D?
In 2024, George Michael Markus, M.D. had 12,454 Medicare Part D claims for 917 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is George Michael Markus, M.D.'s MIPS final score?
The 2023 MIPS final score is 96.6 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.