NPPES file of Aug 9, 2026

Brian C. Weis, MD

Internal Medicine Physician · Amarillo, TX

Brian C. Weis, MD is an internal medicine physician with a practice address in Amarillo, Texas, and NPI 1801827449, issued on Jul 5, 2006. Check the license (Texas L1235, 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
1801827449
Name
Brian C. Weis
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
L1235 TX
Self-reported in NPPES; status is on the state search
Practice location
1411 E Amarillo Blvd, Amarillo, TX 79107
Phone
(806) 351-7200
Enumerated
Jul 5, 2006
Record last updated
Aug 16, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(806) 351-7274
Medicaid IDs
200043940A OK
146828205 TX
1468282-06 TX
146828203 TX
Medicare enrollment
Enrolled (PECOS I20041124000090); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 1997
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 1411 E Amarillo Blvd

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

  1. Cheri Ashley, F.N.PFamily Nurse Practitioner1801114152
  2. Marlena Austin, FNP-CFamily Nurse Practitioner1770252561
  3. Kimberly Baker, M.D.Internal Medicine Physician1992807440
  4. William Bowman, FNPFamily Nurse Practitioner1245796911
  5. Cecelia Brewer, NURSE PRACTITIONERFamily Nurse Practitioner1578998951
  6. Jennifer CarreonFamily Nurse Practitioner1760030100

Verify Brian C. Weis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L1235
    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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15% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,687 Medicare Part D claims for 95 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 180 claims were for opioids.

  1. Brian Weis2,687
  2. Specialty average3,176

Most prescribed

  1. Biktarvy416 claims
  2. Atorvastatin Calcium127 claims
  3. Gabapentin118 claims
  4. Tamsulosin Hcl98 claims
  5. Acetaminophen-Codeine94 claims
  6. Lisinopril76 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): 100 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 score91.2
  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: $194.14

5 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian Weis$194.14
  2. Specialty average$1,303.06

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 Tech University Health Sciences Center AmarilloAmarillo, TX

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

Brian C. Weis among 9,175 internal medicine physician records in Texas

Brian C. Weis, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1997 · median 2004 among the 6,088 with a school on file
  • Record last updated2019 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

82 internal medicine physician records list a practice address in Amarillo

They are 82 of the 3,934 NPPES records with a practice address in Amarillo, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kimberly Baker, M.D.Amarillo, TX 791071992807440
  2. Ricardo Carrizo, MDAmarillo, TX 791071356453013
  3. Mouin Jaber, MDAmarillo, TX 791071033226915
  4. Julito Uy, MDAmarillo, TX 791071245262443
  5. Sarah Ahmed, M.D.Amarillo, TX 791061952797557
  6. Mustafa Al-Bayati, M.D.Amarillo, TX 791061871172122
  7. Hussain Alhamza, M.DAmarillo, TX 791061548611999
  8. Unknown Batakeh Ba Agoons, M.DAmarillo, TX 791061154056737

Common questions

What is Brian C. Weis, MD's NPI number?

Brian C. Weis, MD's National Provider Identifier (NPI) is 1801827449, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian C. Weis, MD located?

The NPPES record lists a practice address at 1411 E Amarillo Blvd, Amarillo, TX, 79107. Phone: (806) 351-7200. Providers update this record themselves, so call before visiting.

How can I verify Brian C. Weis, MD's license?

NPPES lists Texas license number L1235, 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 Brian C. Weis, MD prescribe under Medicare Part D?

In 2024, Brian C. Weis, MD had 2,687 Medicare Part D claims for 95 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Brian C. Weis, MD's MIPS final score?

The 2023 MIPS final score is 100 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.