NPPES file of Aug 9, 2026

Alison Unzeitig Barron, MD

Surgical Oncology Physician · San Antonio, TX

Alison Unzeitig Barron, MD is a surgical oncology physician with a practice address in San Antonio, Texas, and NPI 1790041085, issued on Apr 11, 2012. Check the license (Texas R6971, 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
1790041085
Name
Alison Unzeitig Barron
Credential
MD
Primary taxonomy
Surgical Oncology Physician 2086X0206X
License numbers
R6971 TX
61965 MN
Self-reported in NPPES; status is on the state search
Practice location
18707 Hardy Oak Blvd Ste 320, San Antonio, TX 78258
Phone
(210) 277-6255
Enumerated
Apr 11, 2012
Record last updated
Sep 18, 2023
Fax
(210) 277-6256
Medicaid IDs
390718001 TX
390718002 TX
Medicare enrollment
Enrolled (PECOS I20181113002583); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 2012
Telehealth
Offers telehealth (CMS)
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 18707 Hardy Oak Blvd Ste 320

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

  1. Gustavo Guajardo Salinas, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1144403387
  2. Nayel Khan, M.D.Plastic Surgery within the Head & Neck (Otolaryngology) Physician1437507167
  3. John Ogden, MDHematology & Oncology Physician1851823389

Verify Alison Unzeitig Barron in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R6971
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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8% more Medicare Part D claims than the average surgical oncology physician in 2024

94 Medicare Part D claims for 74 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. 66 claims were for opioids.

  1. Alison Barron94
  2. Specialty average87

Most prescribed

  1. Tramadol Hcl62 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): 89.4 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.

  1. Qualityout of 100 · 30% of the final score75.9
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $200.12

3 payments; by number, the most common kind was food and beverage; the largest payer was Endomagnetics Ltd. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alison Barron$200.12
  2. Specialty average$4,224.74

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. Texas Oncology PADallas, TX

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

Alison Unzeitig Barron among 206 surgical oncology physician records in Texas

Alison Unzeitig Barron, MD is one of 206 surgical oncology physician records with a practice address in Texas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 71% of them.

  • NPI issued2012 · 71% of these records are older, 24% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated2012 · median 2005 among the 161 with a school on file
  • Record last updated2023 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Oncology Physician providers in Texas

There are 206 surgical oncology physician records in Texas.

The 8 surgical oncology physician records with the nearest ZIP codes

  1. Christopher PorterSan Antonio, TX 782511639674609
  2. Alfredo Santillan-Gomez, M.D., M.P.H:San Antonio, TX 782401124213400
  3. Chittamuru Surendranath, M.D.San Antonio, TX 782381720106107
  4. Guy Clifton, M.D,Fort Sam Houston, TX 782341790964963
  5. Erek Nelson, MD, MS, USAF, MCFort Sam Houston, TX 782341588043855
  6. George Peoples, M.D.Fort Sam Houston, TX 782341023036241
  7. Carissia Calvo-Strube, M.D.San Antonio, TX 782291508209966
  8. Colin Court, MDSan Antonio, TX 782291669738308

Common questions

What is Alison Unzeitig Barron, MD's NPI number?

Alison Unzeitig Barron, MD's National Provider Identifier (NPI) is 1790041085, issued on Apr 11, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Alison Unzeitig Barron, MD located?

The NPPES record lists a practice address at 18707 Hardy Oak Blvd Ste 320, San Antonio, TX, 78258. Phone: (210) 277-6255. Providers update this record themselves, so call before visiting.

How can I verify Alison Unzeitig Barron, MD's license?

NPPES lists Texas license number R6971, 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 Alison Unzeitig Barron, MD prescribe under Medicare Part D?

In 2024, Alison Unzeitig Barron, MD had 94 Medicare Part D claims for 74 beneficiaries; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.

What is Alison Unzeitig Barron, MD's MIPS final score?

The 2023 MIPS final score is 89.4 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.