Estefany Villalobos, PHYSICIAN ASSISTANT
NPI 1538775739 · Physician Assistant · San Antonio, TX
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Estefany Villalobos, PHYSICIAN ASSISTANT is a Physician Assistant provider in San Antonio, TX (NPI 1538775739).
Provider details
- NPI number
- 1538775739
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PHYSICIAN ASSISTANT
- Sex
- Female
- Sole proprietor
- No
- License
- PA17741 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Physician Assistant363A00000X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
80 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 80 | $173 |
Typical Medicare-allowed amounts for these services range $173–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 200 Lothrop StPittsburgh, PA 15213-2536Phone: (210) 382-9298
Registry dates
- Enumerated
- 2020-09-22
- Last updated
- 2024-04-03
- Certified
- 2024-04-03
Frequently asked questions
- What is Estefany Villalobos's NPI number?
- Estefany Villalobos's National Provider Identifier (NPI) is 1538775739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Estefany Villalobos's specialty?
- Estefany Villalobos is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Estefany Villalobos located?
- Estefany Villalobos's practice location on file with NPPES is 4502 Medical Dr, San Antonio, TX 78229-4402.
- What is Estefany Villalobos's phone number?
- The practice phone number listed in the NPPES registry for Estefany Villalobos is (210) 358-4000.
- Does Estefany Villalobos accept Medicare?
- Estefany Villalobos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Estefany Villalobos's NPI active?
- Yes — Estefany Villalobos's NPI (1538775739) is active in the NPPES registry as of the last update on 2024-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.