Carlos Alvarez-Meraz, MD
NPI 1356450050 · Specialist · San Antonio, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carlos Alvarez-Meraz, MD is a Specialist provider in San Antonio, TX (NPI 1356450050).
Provider details
- NPI number
- 1356450050
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- L1261 (TX)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,424 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 276 | $177 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 227 | $127 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 178 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 160 | $120 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By ThG0316 | 98 | $31 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 83 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 183 | 52 |
| Atorvastatin Calcium | 157 | 47 |
| Rosuvastatin Calcium | 109 | 35 |
| Gabapentin | 99 | 31 |
| Metformin Hcl | 96 | 29 |
| Metoprolol Succinate | 85 | 24 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-29
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Carlos Alvarez-Meraz's NPI number?
- Carlos Alvarez-Meraz's National Provider Identifier (NPI) is 1356450050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carlos Alvarez-Meraz's specialty?
- Carlos Alvarez-Meraz is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Carlos Alvarez-Meraz located?
- Carlos Alvarez-Meraz's practice location on file with NPPES is 7434 Louis Pasteur Dr Ste 109, San Antonio, TX 78229-4539.
- What is Carlos Alvarez-Meraz's phone number?
- The practice phone number listed in the NPPES registry for Carlos Alvarez-Meraz is (210) 614-3723.
- Does Carlos Alvarez-Meraz accept Medicare?
- Carlos Alvarez-Meraz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carlos Alvarez-Meraz's NPI active?
- Yes — Carlos Alvarez-Meraz's NPI (1356450050) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.