GREGORY PATTERSON
NPI 1821447251
Emergency Medicine in Austin, TX
About Gregory Patterson NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY PATTERSON (NPI 1821447251) is an individual emergency medicine provider in Austin, Texas, licensed in Texas (R5450) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with St David's Medical Center, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (2016).
NPPES Registry Identity
Specialties & Licenses 2
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 Patterson 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
6Medicare enrollment records show Gregory Patterson reassigns Medicare billing to 6 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
- 1,511 clinicians in this Medicare group
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
Austin, TX 78750
- Reassigned Medicare billing, Texas enrollment
- 93 clinicians in this Medicare group
Round Rock, TX 78681
- Reassigned Medicare billing, Texas enrollment
- 81 clinicians in this Medicare group
Orange, TX 77630
- Reassigned Medicare billing, Texas enrollment
- 115 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St David's Medical Center
Acute Care Hospitals · Austin, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78756 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AUSTIN, TX 78756
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 Patterson's NPI number?
The NPI number for Gregory Patterson is 1821447251. It was assigned to this individual provider in the NPPES registry on June 7, 2016.
Where is Gregory Patterson located?
Gregory Patterson practices at 1400 North St # I-35 Suite 2.230, Austin, TX 78756. The listed phone number is (512) 324-8221.
What is Gregory Patterson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gregory Patterson enrolled in Medicare?
Yes. Gregory Patterson 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 Patterson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Patterson reassigns Medicare benefits to 6 organizations: Travis County Emergency Physicians PA (Austin, TX), Longhorn Emergency Medical Associates PA (Austin, TX), Austin ER Associates PLLC (Austin, TX), Brushy Creek Emergency Physicians PLLC (Round Rock, TX), Altus Exceptional Physician Group PLLC (Orange, TX) and 1 more organization, listed in the Medicare section above. 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 Patterson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Patterson accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Molina Healthcare, Sendero Health Plans, Local Nonprofit and UnitedHealthcare list Gregory Patterson 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 Patterson affiliated with any hospitals?
According to CMS data, Gregory Patterson is affiliated with St David's Medical Center.
When was this NPI record last updated?
The NPPES record for Gregory Patterson was last updated on September 7, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 Patterson · NPI 1821447251
Emergency Medicine physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since June 7, 2016.
## Identity
- **NPI:** 1821447251 (Entity type: Individual)
- **Enumerated:** June 7, 2016
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** R5450 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1400 NORTH ST # I-35, SUITE 2.230, Austin, TX 78756
- **Phone:** (512) 324-8221
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Travis County Emergency Physicians PA (NPI 1962440933, Austin, TX); Longhorn Emergency Medical Associates PA (NPI 1649669672, Austin, TX); Austin ER Associates PLLC (NPI 1376114587, Austin, TX); Brushy Creek Emergency Physicians PLLC (NPI 1235773151, Round Rock, TX); Altus Exceptional Physician Group PLLC (NPI 1730869207, Orange, TX); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 2016
## Record status
- **NPPES last updated:** September 7, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1821447251) · Data from the CMS NPPES public registry.