Mariana Hernandez Rivera, MD
NPI 1013408152 · Internal Medicine Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariana Hernandez Rivera, MD is a Internal Medicine Physician provider in San Antonio, TX (NPI 1013408152).
Provider details
- NPI number
- 1013408152
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 125.071738 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
112 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 97 | $94 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 15 | $62 |
Typical Medicare-allowed amounts for these services range $62–$94 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 67 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 207 | 100 |
| Lisinopril | 158 | 74 |
| Gabapentin | 123 | 63 |
| Amlodipine Besylate | 118 | 58 |
| Losartan Potassium | 95 | 41 |
| Hydrochlorothiazide | 94 | 38 |
| Metformin Hcl | 94 |
Practice location
Mailing address
Additional practice locations (1)
- 1500 S Fairfield AveChicago, IL 60608-1782Phone: (773) 257-5077
Registry dates
- Enumerated
- 2018-05-24
- Last updated
- 2024-11-15
- Certified
- 2024-11-15
Frequently asked questions
- What is Mariana Hernandez Rivera's NPI number?
- Mariana Hernandez Rivera's National Provider Identifier (NPI) is 1013408152, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariana Hernandez Rivera's specialty?
- Mariana Hernandez Rivera is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mariana Hernandez Rivera located?
- Mariana Hernandez Rivera's practice location on file with NPPES is 701 S Zarzamora St, San Antonio, TX 78207-5209.
- What is Mariana Hernandez Rivera's phone number?
- The practice phone number listed in the NPPES registry for Mariana Hernandez Rivera is (210) 358-7000.
- Does Mariana Hernandez Rivera accept Medicare?
- Mariana Hernandez Rivera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariana Hernandez Rivera's NPI active?
- Yes — Mariana Hernandez Rivera's NPI (1013408152) is active in the NPPES registry as of the last update on 2024-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.