Marcus L. Allen, MD
Retina Specialist (Ophthalmology) Physician · Dallas, TX
Marcus L. Allen, MD is a retina specialist (ophthalmology) physician with a practice address in Dallas, Texas, and NPI 1164481297, issued on Mar 18, 2006. Check the license (Texas L8592, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marcus L. Allen
- Credential
- MD
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- L8592 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3414 Oak Grove Ave, Dallas, TX 75204
- Phone
- (214) 521-1153
- Enumerated
- Mar 18, 2006
- Record last updated
- Jul 23, 2024
- Fax
- (214) 219-3651
- Medicaid IDs
- 166084702 TX
166084703 TX
166084704 TX - Medicare enrollment
- Enrolled (PECOS I20040730000248); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 2000
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 107 in Texas → Look up another NPI →
Also registered at 3414 Oak Grove Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Kozielec, MDRetina Specialist (Ophthalmology) Physician1053379081
- Maurice Syrquin, MDRetina Specialist (Ophthalmology) Physician1376501635
- Bruce Taylor, M.D.Ophthalmology Physician1396703641
- Scott Witherspoon, MDRetina Specialist (Ophthalmology) Physician1639203169
Verify Marcus L. Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L8592Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
1,020 Medicare Part D claims for 305 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Ketorolac Tromethamine193 claims
- Diclofenac Sodium189 claims
- Timolol Maleate135 claims
- Latanoprost123 claims
- Prednisolone Acetate108 claims
- Dorzolamide-Timolol75 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): 96.8 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: $39.87
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 1,253 providers of this specialty with any payment received $7,667.49 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
- Retina Institute OF Texas PADenton, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcus L. Allen among 107 retina specialist (ophthalmology) physician records in Texas
Marcus L. Allen, MD is one of 107 retina specialist (ophthalmology) physician records with a practice address in Texas. 96% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 60% newer
- In a Medicare fileYes · 96% of these records are
- In the CMS Doctors and Clinicians fileYes · 90% of these records are
- Graduated2000 · median 2006 among the 96 with a school on file
- Record last updated2024 · 30% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in Texas
There are 107 retina specialist (ophthalmology) physician records in Texas.
All 107 in Texas → Every provider in Dallas → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Gregory Kozielec, MDDallas, TX 752041053379081
- Maurice Syrquin, MDDallas, TX 752041376501635
- Scott Witherspoon, MDDallas, TX 752041639203169
- Yasser Elshatory, MDPlano, TX 750751033403100
- Kruti Dajee, M.D.McKinney, TX 750711043506215
- Archana Nair, MDMcKinney, TX 750711871027128
- Mahdi Rostamizadeh, MDFrisco, TX 750351053654384
- Matthew Adams, MDPlano, TX 750241124361076
Common questions
What is Marcus L. Allen, MD's NPI number?
Marcus L. Allen, MD's National Provider Identifier (NPI) is 1164481297, issued on Mar 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcus L. Allen, MD located?
The NPPES record lists a practice address at 3414 Oak Grove Ave, Dallas, TX, 75204. Phone: (214) 521-1153. Providers update this record themselves, so call before visiting.
How can I verify Marcus L. Allen, MD's license?
NPPES lists Texas license number L8592, 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 Marcus L. Allen, MD prescribe under Medicare Part D?
In 2024, Marcus L. Allen, MD had 1,020 Medicare Part D claims for 305 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
What is Marcus L. Allen, MD's MIPS final score?
The 2023 MIPS final score is 96.8 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.