DR. THAYER ISMAAEL MD
NPI 1720305477
Hospitalist in Amarillo, TX
About Dr. Thayer Ismaael Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THAYER ISMAAEL MD (NPI 1720305477) is an individual hospitalist provider in Amarillo, Texas, licensed in Texas (P5649) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS, is affiliated with Bsa Hospital, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Thayer Ismaael Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Thayer Ismaael reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Amarillo, TX 79106
- Reassigned Medicare billing, Texas enrollment
- 151 clinicians in this Medicare group
Amarillo, TX 79106
- Reassigned Medicare billing, Texas enrollment
- 34 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 7
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bsa Hospital
Acute Care Hospitals · Amarillo, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 79106 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AMARILLO, TX 79106
AMARILLO, TX 79106
AMARILLO, TX 79106
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Thayer Ismaael's NPI number?
The NPI number for Thayer Ismaael is 1720305477. It was assigned to this individual provider in the NPPES registry on April 21, 2010.
Where is Thayer Ismaael located?
Thayer Ismaael practices at 1600 Wallace Blvd, Amarillo, TX 79106. The listed phone number is (806) 212-2129.
What is Thayer Ismaael's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Thayer Ismaael enrolled in Medicare?
Yes. Thayer Ismaael is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Thayer Ismaael's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thayer Ismaael reassigns Medicare benefits to 2 organizations: Bsa Physicians Group Inc (Amarillo, TX) and Lone Star Hospital Medicine Physicians PLLC (Amarillo, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thayer Ismaael's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thayer Ismaael accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and WellPoint list Thayer Ismaael as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Thayer Ismaael affiliated with any hospitals?
According to CMS data, Thayer Ismaael is affiliated with Bsa Hospital.
When was this NPI record last updated?
The NPPES record for Thayer Ismaael was last updated on April 18, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Thayer Ismaael, MD · NPI 1720305477
Hospitalist physician in Amarillo, Texas. Individual provider, active in the CMS NPPES registry since April 21, 2010.
## Identity
- **NPI:** 1720305477 (Entity type: Individual)
- **Enumerated:** April 21, 2010
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** P5649 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 WALLACE BLVD, Amarillo, TX 79106-1799
- **Phone:** (806) 212-2129 · **Fax:** (806) 212-2246
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Bsa Physicians Group Inc (NPI 1457696916, Amarillo, TX); Lone Star Hospital Medicine Physicians PLLC (NPI 1992625230, Amarillo, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** April 18, 2019
- **Other identifiers:** Medicaid 322246502 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1720305477) · Data from the CMS NPPES public registry.