NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1275805798 CSA
Verify on CMS → Sergio Perez, CSA
Physician Assistant in San Antonio, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,974 in Physician Assistant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Sergio Perez, CSA is a Physician Assistant in San Antonio, Texas, listed in the federal CMS National Provider Identifier registry.
- #12
- Physician Assistant rank among Texas specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1275805798 · Physician Assistant
NPI-10 · ENUM-MID · TAX-MEGA · RX-NONE · BOOK-MID · PHOTO-ENUM
- NPI-10 1275805798
- ENUM-MID 2012
- TAX-MEGA 151K Physician Assistant
- RX-NONE No Part D
- BOOK-MID 9,933 in Texas
- PHOTO-ENUM Aimee Herrington · 2012
What does the federal data show about Sergio Perez, CSA?
Quality data not reportedPrimary specialty
Physician Assistant
Specialty distribution in Texas
How Physician Assistant compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Physician Assistant. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1275805798 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | CSA |
| Gender | Male |
| NPI Issued | 01/30/2012 |
License & disciplinary context - Texas TMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Sergio Perez, CSA. To verify Sergio Perez, CSA's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Physician Assistant Overview
How Sergio Perez, CSA fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Nationwide Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Perez, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Physician Assistant Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Perez.
One of 9,933 Physician Assistant providers enrolled in Texas, 5 are shown here.
Dr. Neha Aamir
PA
Pearland, TX
Dr. Shaghayegh Ababaf
PA-C
Lewisville, TX
Dr. Linda Abad
PA-C
Houston, TX
Hansaa Abbasi
Dallas, TX
Dr. Alicia Abbey
MPAS, PA-C
San Antonio, TX
Compare Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sergio Perez, CSA's specialty? ▼
Sergio Perez, CSA specializes in Physician Assistant and practices in San Antonio, Texas. Credentials: CSA.
Where is Sergio Perez, CSA located? ▼
Sergio Perez, CSA is located at 3827 RELAMPAGO, San Antonio, TX, 78223. Phone: (210) 373-2892.
What is Sergio Perez, CSA's NPI number? ▼
Sergio Perez, CSA's National Provider Identifier (NPI) is 1275805798, issued on 01/30/2012.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
Does Sergio Perez, CSA accept Medicare? ▼
Sergio Perez, CSA appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sergio Perez, CSA's credentials? ▼
Sergio Perez, CSA's NPI is 1275805798 with credentials CSA. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.