Zachary Goodwin Keenum, M.D.
Ophthalmology Physician · Dallas, TX
Zachary Goodwin Keenum, M.D. is an ophthalmology physician with a practice address in Dallas, Texas, and NPI 1639605223, issued on May 3, 2017. Check the license (Texas T1115, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Zachary Goodwin Keenum
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- T1115 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5323 Harry Hines Blvd, Dallas, TX 75390
- Phone
- (214) 645-2020
- Enumerated
- May 3, 2017
- Record last updated
- Jun 20, 2022
- Medicare enrollment
- Enrolled (PECOS I20230421002407); accepts Medicare assignment
- Medical or professional school
- University Of Alabama School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,514 in Texas → Look up another NPI →
Also registered at 5323 Harry Hines Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Zachary Goodwin Keenum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license T1115Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average ophthalmology physician in 2024
766 Medicare Part D claims for 444 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Erythromycin306 claims
- Moxifloxacin204 claims
- Tobramycin-Dexamethasone146 claims
- Cephalexin34 claims
- Methylprednisolone18 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): 76.3 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: $479.49
12 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Vance Thompson Vision Clinic Prof LLCSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Goodwin Keenum among 1,514 ophthalmology physician records in Texas
Zachary Goodwin Keenum, M.D. is one of 1,514 ophthalmology physician records with a practice address in Texas. 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 2017, is newer than 85% of them.
- NPI issued2017 · 85% of these records are older, 14% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2017 · median 2003 among the 1,052 with a school on file
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Texas
There are 1,514 ophthalmology physician records in Texas.
All 1,514 in Texas → Every provider in Dallas → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Nalini Aggarwal, MDDallas, TX 753901861461303
- Zahra Ali, MDDallas, TX 753901427287499
- Preston Blomquist, MDDallas, TX 753901962462622
- Sukru Dogan, M.D.Dallas, TX 753901043576507
- Prashanthi Giridhar, M.DDallas, TX 753901770710394
- Ziad Husseini, M.D.Dallas, TX 753901740472034
- Ashbala Khattak, MDDallas, TX 753901700020245
- John McHenry, MDDallas, TX 753901770659104
Common questions
What is Zachary Goodwin Keenum, M.D.'s NPI number?
Zachary Goodwin Keenum, M.D.'s National Provider Identifier (NPI) is 1639605223, issued on May 3, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Goodwin Keenum, M.D. located?
The NPPES record lists a practice address at 5323 Harry Hines Blvd, Dallas, TX, 75390. Phone: (214) 645-2020. Providers update this record themselves, so call before visiting.
How can I verify Zachary Goodwin Keenum, M.D.'s license?
NPPES lists Texas license number T1115, 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 Zachary Goodwin Keenum, M.D. prescribe under Medicare Part D?
In 2024, Zachary Goodwin Keenum, M.D. had 766 Medicare Part D claims for 444 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Zachary Goodwin Keenum, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.3 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.