GREGORY S. GREMMEL MD
NPI 1902851090
Emergency Medicine - Emergency Medical Services in Austin, TX
About Gregory S. Gremmel Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY S. GREMMEL MD (NPI 1902851090) is an individual emergency medical services provider in Austin, Texas, licensed in Texas (L2287) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Yoakum Community Hospital, and is a graduate of Other (1997).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 6
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
Gregory S. Gremmel 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
5Medicare enrollment records show Gregory Gremmel reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
Lakeway, TX 78734
- Reassigned Medicare billing, Texas enrollment
- 77 clinicians in this Medicare group
Victoria, TX 77901
- Reassigned Medicare billing, Texas enrollment
- 118 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,338 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,439 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 4
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.
Yoakum Community Hospital
Critical Access Hospitals · Yoakum, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78705 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Gregory Gremmel's NPI number?
The NPI number for Gregory Gremmel is 1902851090. It was assigned to this individual provider in the NPPES registry on May 24, 2006.
Where is Gregory Gremmel located?
Gregory Gremmel practices at 919 E 32nd St, Austin, TX 78705. The listed phone number is (512) 476-7111.
What is Gregory Gremmel's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Gregory Gremmel enrolled in Medicare?
Yes. Gregory Gremmel 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 Gregory Gremmel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Gremmel reassigns Medicare benefits to 5 organizations: Longhorn Emergency Medical Associates PA (Austin, TX), Cec Lakeway Urgent Care Physicians PLLC (Lakeway, TX), Lone Star Emergency Associates LLC (Victoria, TX), Concord Medical Group PLLC (Lubbock, TX) and Concord Medical Group Of Texas PLLC (Lubbock, 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 Gregory Gremmel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Gremmel accept?
Health plans from Blue Cross and Blue Shield of Texas list Gregory Gremmel 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 Gregory Gremmel affiliated with any hospitals?
According to CMS data, Gregory Gremmel is affiliated with Yoakum Community Hospital.
When was this NPI record last updated?
The NPPES record for Gregory Gremmel was last updated on May 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Gregory S. Gremmel, MD · NPI 1902851090
Emergency Medical Services physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since May 24, 2006.
## Identity
- **NPI:** 1902851090 (Entity type: Individual)
- **Enumerated:** May 24, 2006
- **Primary specialty:** Emergency Medicine - Emergency Medical Services · taxonomy 207PE0004X
- **State license:** L2287 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 919 E 32ND ST, Austin, TX 78705-2703
- **Phone:** (512) 476-7111
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Longhorn Emergency Medical Associates PA (NPI 1649669672, Austin, TX); Cec Lakeway Urgent Care Physicians PLLC (NPI 1285088161, Lakeway, TX); Lone Star Emergency Associates LLC (NPI 1457709040, Victoria, TX); Concord Medical Group PLLC (NPI 1083630610, Lubbock, TX); Concord Medical Group Of Texas PLLC (NPI 1750790762, Lubbock, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** May 13, 2010
- **Other identifiers:** Medicare UPIN H52045 (TX); Medicare ID-Type Unspecified 8222M5 (TX); Medicaid 147915602 (TX); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1902851090) · Data from the CMS NPPES public registry.