DR. ADAM VILLALBA M.D.
NPI 1750768248
Emergency Medicine in Austin, TX
About Dr. Adam Villalba M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ADAM VILLALBA M.D. (NPI 1750768248) is an individual emergency medicine provider in Austin, Texas, licensed in Texas (R5336) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, is affiliated with Round Rock Medical Center, and is a graduate of University Of New Mexico School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses
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. Adam Villalba M.d. 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
16Medicare enrollment records show Adam Villalba reassigns Medicare billing to 16 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
San Marcos, TX 78666
- Reassigned Medicare billing, Texas enrollment
- 137 clinicians in this Medicare group
Gonzales, TX 78629
- Reassigned Medicare billing, Texas enrollment
- 430 clinicians in this Medicare group
Killeen, TX 76549
- Reassigned Medicare billing, Texas enrollment
- 387 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 1,452 clinicians in this Medicare group
San Antonio, TX 78249
- Reassigned Medicare billing, Texas enrollment
- 379 clinicians in this Medicare group
Victoria, TX 77901
- Reassigned Medicare billing, Texas enrollment
- 153 clinicians in this Medicare group
Dallas, TX 75246
- Reassigned Medicare billing, Texas enrollment
- 1,044 clinicians in this Medicare group
Laredo, TX 78041
- Reassigned Medicare billing, Texas enrollment
- 86 clinicians in this Medicare group
Gainesville, TX 76240
- Reassigned Medicare billing, Texas enrollment
- 1,193 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 6
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Round Rock Medical Center
Acute Care Hospitals · Round Rock, TXNorth Austin Medical Center
Acute Care Hospitals · Austin, TXBaylor Scott & White Medical Center - Marble Falls
Acute Care Hospitals · Marble Falls, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Adam Villalba's NPI number?
The NPI number for Adam Villalba is 1750768248. It was assigned to this individual provider in the NPPES registry on May 4, 2015.
Where is Adam Villalba located?
Adam Villalba practices at 313 W 17th St Unit 2301, Austin, TX 78701. The listed phone number is (915) 861-3634.
What is Adam Villalba's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Adam Villalba enrolled in Medicare?
Yes. Adam Villalba 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 Adam Villalba's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Adam Villalba reassigns Medicare benefits to 16 organizations: Longhorn Emergency Medical Associates PA (Austin, TX), Comal Emergency Physicians, PLLC (San Marcos, TX), Victoria Emergency Partners LLC (Gonzales, TX), Sound Physicians Emergency Medicine Of Texas PLLC (Killeen, TX), Emergency Medicine Services Of Tx, PLLC (San Antonio, TX) and 11 more organizations, 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 Adam Villalba's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Adam Villalba accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Health and Oscar Insurance Company and 2 other insurers list Adam Villalba 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 Adam Villalba affiliated with any hospitals?
According to CMS data, Adam Villalba is affiliated with Round Rock Medical Center, North Austin Medical Center and Baylor Scott & White Medical Center - Marble Falls.
When was this NPI record last updated?
The NPPES record for Adam Villalba was last updated on May 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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. Adam Villalba, M.D. · NPI 1750768248
Emergency Medicine physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since May 4, 2015.
## Identity
- **NPI:** 1750768248 (Entity type: Individual)
- **Enumerated:** May 4, 2015
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** R5336 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 313 W 17TH ST UNIT 2301, Austin, TX 78701-1298
- **Phone:** (915) 861-3634 · **Fax:** (512) 256-9848
## 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:** 16 organizations under Medicare reassignment (form CMS-855R): Longhorn Emergency Medical Associates PA (NPI 1649669672, Austin, TX); Comal Emergency Physicians, PLLC (NPI 1588438675, San Marcos, TX); Victoria Emergency Partners LLC (NPI 1164770996, Gonzales, TX); Sound Physicians Emergency Medicine Of Texas PLLC (NPI 1518475557, Killeen, TX); Emergency Medicine Services Of Tx, PLLC (NPI 1245938729, San Antonio, TX); and 11 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New Mexico School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** May 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1750768248) · Data from the CMS NPPES public registry.