NPPES file of Aug 9, 2026

Allyson Lynn Harroff, M.D.

Hematology & Oncology Physician · San Antonio, TX

Allyson Lynn Harroff, M.D. is a hematology & oncology physician with a practice address in San Antonio, Texas, and NPI 1538291380, issued on Mar 9, 2007. Check the license (Texas M3251, 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
1538291380
Name
Allyson Lynn Harroff
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
M3251 TX
Self-reported in NPPES; status is on the state search
Practice location
2130 N.e.loop 410, San Antonio, TX 78217
Phone
(210) 656-7177
Enumerated
Mar 9, 2007
Record last updated
Jul 28, 2022
Fax
(210) 656-3687
Medicaid IDs
185867201 TX
185867202 TX
Medicare enrollment
Enrolled (PECOS I20070720000354); accepts Medicare assignment
Medical or professional school
Medical College Of Ohio, 1998
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.
Download card Updates feed

Also registered at 2130 N.e.loop 410

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

  1. Stephen Cohen, M.D.Hematology & Oncology Physician1457374142
  2. Sharon Wilks, M.D.Hematology & Oncology Physician1336155498

Verify Allyson Lynn Harroff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license M3251
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

35% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,186 Medicare Part D claims for 222 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 99 claims were for opioids.

  1. Allyson Harroff1,186
  2. Specialty average877

Most prescribed

  1. Anastrozole233 claims
  2. Hydrocodone-Acetaminophen69 claims
  3. Tamoxifen Citrate69 claims
  4. Gabapentin57 claims
  5. Letrozole51 claims
  6. Exemestane49 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: $382.33

5 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Allyson Harroff$382.33
  2. Specialty average$7,481.41

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 PASan Antonio, TX

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

Allyson Lynn Harroff among 922 hematology & oncology physician records in Texas

Allyson Lynn Harroff, M.D. is one of 922 hematology & 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 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 47% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1998 · median 2004 among the 691 with a school on file
  • Record last updated2022 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Texas

There are 922 hematology & oncology physician records in Texas.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Krishna Alluri, MDSan Antonio, TX 782171992908347
  2. Stephen Cohen, M.D.San Antonio, TX 782171457374142
  3. Saranya Kodali, M.D.San Antonio, TX 782171669813630
  4. Janice Mullins, D.O.San Antonio, TX 782171124314752
  5. Sharon Wilks, M.D.San Antonio, TX 782171336155498
  6. James Ellis, MDSan Antonio, TX 782161801869268
  7. Jayasree Rao, M.D.San Antonio, TX 782151285662510
  8. Esther Urbaez Duran, M.D.San Antonio, TX 782141447469150

Common questions

What is Allyson Lynn Harroff, M.D.'s NPI number?

Allyson Lynn Harroff, M.D.'s National Provider Identifier (NPI) is 1538291380, issued on Mar 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Allyson Lynn Harroff, M.D. located?

The NPPES record lists a practice address at 2130 N.e.loop 410, San Antonio, TX, 78217. Phone: (210) 656-7177. Providers update this record themselves, so call before visiting.

How can I verify Allyson Lynn Harroff, M.D.'s license?

NPPES lists Texas license number M3251, 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 Allyson Lynn Harroff, M.D. prescribe under Medicare Part D?

In 2024, Allyson Lynn Harroff, M.D. had 1,186 Medicare Part D claims for 222 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Allyson Lynn Harroff, M.D.'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.