Thayer Ismaael, MD
Hospitalist Physician · Amarillo, TX
Thayer Ismaael, MD is a hospitalist physician with a practice address in Amarillo, Texas, and NPI 1720305477, issued on Apr 21, 2010. Check the license (Texas P5649, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thayer Ismaael
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- P5649 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Wallace Blvd, Amarillo, TX 79106
- Phone
- (806) 212-2129
- Enumerated
- Apr 21, 2010
- Record last updated
- Apr 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (806) 212-2246
- Medicaid ID
- 322246502 TX
- Medicare enrollment
- Enrolled (PECOS I20130826000247); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,587 in Texas → Look up another NPI →
Also registered at 1600 Wallace Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jacob Beck, CRNACertified Registered Nurse Anesthetist1205378098
Verify Thayer Ismaael in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P5649Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average hospitalist physician in 2024
1,436 Medicare Part D claims for 402 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Levothyroxine Sodium82 claims
- Prednisone72 claims
- Furosemide61 claims
- Amoxicillin-Clavulanate Potass51 claims
- Metoprolol Tartrate48 claims
- Cefuroxime42 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): 97.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $142.69
8 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Bsa Physicians Group IncAmarillo, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thayer Ismaael among 1,587 hospitalist physician records in Texas
Thayer Ismaael, MD is one of 1,587 hospitalist physician records with a practice address in Texas. 90% 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 28% of them.
- NPI issued2010 · 28% of these records are older, 68% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2003 · median 2013 among the 1,298 with a school on file
- Record last updated2019 · 25% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Texas
There are 1,587 hospitalist physician records in Texas.
All 1,587 in Texas → Every provider in Amarillo → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Carlos Arche, MDAmarillo, TX 791061366427965
- John Dalston, MDAmarillo, TX 791061740240639
- John Forage, MDAmarillo, TX 791061942270038
- Cristian Ghetie, MDAmarillo, TX 791061104000496
- Mitra Haghiri-Canales, MDAmarillo, TX 791061497816417
- Michael Lamanteer, MDAmarillo, TX 791061023047966
- James Martindale, MDAmarillo, TX 791061285676676
- Olga Smirnova, MDAmarillo, TX 791061972545226
Common questions
What is Thayer Ismaael, MD's NPI number?
Thayer Ismaael, MD's National Provider Identifier (NPI) is 1720305477, issued on Apr 21, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Thayer Ismaael, MD located?
The NPPES record lists a practice address at 1600 Wallace Blvd, Amarillo, TX, 79106. Phone: (806) 212-2129. Providers update this record themselves, so call before visiting.
How can I verify Thayer Ismaael, MD's license?
NPPES lists Texas license number P5649, 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 Thayer Ismaael, MD prescribe under Medicare Part D?
In 2024, Thayer Ismaael, MD had 1,436 Medicare Part D claims for 402 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Thayer Ismaael, MD's MIPS final score?
The 2023 MIPS final score is 97.6 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.