NPPES file of Aug 9, 2026

Roi Weiser, MD

Surgical Oncology Physician · Houston, TX

Roi Weiser, MD is a surgical oncology physician with a practice address in Houston, Texas, and NPI 1255950051, issued on Apr 11, 2020. Check the license (Texas 47762, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255950051
Name
Roi Weiser
Credential
MD
Primary taxonomy
Surgical Oncology Physician 2086X0206X
License number
47762 TX
Self-reported in NPPES; status is on the state search
Practice location
1515 Holcombe Blvd, Houston, TX 77030
Phone
(713) 792-6161
Enumerated
Apr 11, 2020
Record last updated
Dec 1, 2022
Medicare enrollment
Enrolled (PECOS I20230107000075); 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 1515 Holcombe Blvd

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

  1. Ashley Aaroe, MDNeurology Physician1902295793
  2. Linda Abad, PA-CPhysician Assistant1063928240
  3. Cynthia Abarado, RN, GNPGerontology Nurse Practitioner1851471049
  4. Hussein Abbas, MD, PHDInternal Medicine Physician1609220532
  5. James Abbruzzese, M.D.Medical Oncology Physician1134233224
  6. Karim Abdeldaem, MDEmergency Medicine Physician1558056200

Verify Roi Weiser in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license 47762
    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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87% fewer Medicare Part D claims than the average surgical oncology physician in 2024

11 Medicare Part D claims, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Roi Weiser11
  2. Specialty average87

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.

Bills Medicare through one group practice

  1. Physicians Referral ServiceHouston, TX

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

Roi Weiser among 206 surgical oncology physician records in Texas

Roi Weiser, 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 2020, is newer than 97% of them.

  • NPI issued2020 · 97% of these records are older, 3% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated2011 · median 2005 among the 161 with a school on file
  • Record last updated2022 · 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. Thomas Aloia, M.D.Houston, TX 770301790724631
  2. Amanda Arrington, MD MHMHouston, TX 770301932138609
  3. Yun Chun, MDHouston, TX 770301700841483
  4. Janice Cormier, M.D. MPHHouston, TX 770301487750246
  5. Nestor Esnaola, MDHouston, TX 770301013021666
  6. Elizabeth Fitzsullivan, MDHouston, TX 770301780793794
  7. Keith Fournier, M.D.Houston, TX 770301649290230
  8. Elizabeth Grubbs, MDHouston, TX 770301063458206

Common questions

What is Roi Weiser, MD's NPI number?

Roi Weiser, MD's National Provider Identifier (NPI) is 1255950051, issued on Apr 11, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Roi Weiser, MD located?

The NPPES record lists a practice address at 1515 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 792-6161. Providers update this record themselves, so call before visiting.

How can I verify Roi Weiser, MD's license?

NPPES lists Texas license number 47762, 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 Roi Weiser, MD prescribe under Medicare Part D?

In 2024, Roi Weiser, MD had 11 Medicare Part D claims; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.

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.