NPPES file of Aug 9, 2026

Zack A. Nash, MD

Vascular Surgery Physician · San Antonio, TX

Zack A. Nash, MD is a vascular surgery physician with a practice address in San Antonio, Texas, and NPI 1962722371, issued on Jun 8, 2010. Check the license (Texas Q1864, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962722371
Name
Zack A. Nash
Credential
MD
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License number
Q1864 TX
Self-reported in NPPES; status is on the state search
Practice location
4502 Medical Dr, San Antonio, TX 78229
Phone
(210) 358-2074
Enumerated
Jun 8, 2010
Record last updated
Mar 24, 2025
Medicare enrollment
Enrolled (PECOS I20170907002604); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4502 Medical Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Aaron Abarbanell, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1245497809
  2. Ayham AbdelAnesthesiology Physician1467147496
  3. Ali Abedi, M.D.Pulmonary Disease Physician1346566312
  4. Jordan Abel, M.D.Infectious Disease Physician1417273301
  5. Aesha Aboueisha, MDHospitalist Physician1225527815
  6. Seena Abraham, MDFamily Medicine Physician1306338561

Verify Zack A. Nash in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q1864
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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21% more Medicare Part D claims than the average vascular surgery physician in 2024

244 Medicare Part D claims for 97 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 56 claims were for opioids.

  1. Zack Nash244
  2. Specialty average201

Most prescribed

  1. Clopidogrel95 claims
  2. Xarelto60 claims
  3. Tramadol Hcl56 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): 71.7 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.

  1. Qualityout of 100 · 30% of the final score53.4
  2. Costout of 100 · 30%54.0
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $51.99

1 payment: food and beverage; the largest payer was Medtronic, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Zack Nash$51.99
  2. Specialty average$6,178.00

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

  1. University OF Texas Health Science Center AT San AntonioSan Antonio, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Zack A. Nash among 368 vascular surgery physician records in Texas

Zack A. Nash, MD is one of 368 vascular surgery physician records with a practice address in Texas. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 61% of them.

  • NPI issued2010 · 61% of these records are older, 37% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2009 · median 2004 among the 290 with a school on file
  • Record last updated2025 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in Texas

There are 368 vascular surgery physician records in Texas.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Gabriel Bietz, M.D.San Antonio, TX 782291194988642
  2. Reshma Brahmbhatt, M.D.San Antonio, TX 782291427291368
  3. Teresa Carleton, M.D.San Antonio, TX 782291770617912
  4. Lucas Ferrer Cardona, M.D.San Antonio, TX 782291790912244
  5. Lois Killewich, MDSan Antonio, TX 782291316058274
  6. Alexander Kryszuk, M.D.San Antonio, TX 782291184019416
  7. Jessica Mayor, MDSan Antonio, TX 782291528487469
  8. Lori Pounds, M.D.San Antonio, TX 782291700994985

Common questions

What is Zack A. Nash, MD's NPI number?

Zack A. Nash, MD's National Provider Identifier (NPI) is 1962722371, issued on Jun 8, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Zack A. Nash, MD located?

The NPPES record lists a practice address at 4502 Medical Dr, San Antonio, TX, 78229. Phone: (210) 358-2074. Providers update this record themselves, so call before visiting.

How can I verify Zack A. Nash, MD's license?

NPPES lists Texas license number Q1864, 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 Zack A. Nash, MD prescribe under Medicare Part D?

In 2024, Zack A. Nash, MD had 244 Medicare Part D claims for 97 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.

What is Zack A. Nash, MD's MIPS final score?

The 2023 MIPS final score is 71.7 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.