Timothy Hernandez, MD
NPI 1851495584 · Internal Medicine Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Hernandez, MD is a Internal Medicine Physician provider in San Antonio, TX (NPI 1851495584).
Provider details
- NPI number
- 1851495584
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- K0489 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,009 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 619 | $117 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 278 | $10 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 248 | $118 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 242 | $13 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 232 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 182 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 404 | 116 |
| Levothyroxine Sodium | 247 | 60 |
| Atorvastatin Calcium | 196 | 54 |
| Tirzepatidebrand: Mounjaro | 183 | 28 |
| Amlodipine Besylate | 163 | 46 |
| Dapagliflozin Propanediolbrand: Farxiga | 127 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$190 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-12
- Last updated
- 2018-01-16
Frequently asked questions
- What is Timothy Hernandez's NPI number?
- Timothy Hernandez's National Provider Identifier (NPI) is 1851495584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Hernandez's specialty?
- Timothy Hernandez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Hernandez located?
- Timothy Hernandez's practice location on file with NPPES is 1139 E Sonterra Blvd, San Antonio, TX 78258-4347.
- What is Timothy Hernandez's phone number?
- The practice phone number listed in the NPPES registry for Timothy Hernandez is (210) 404-0000.
- Does Timothy Hernandez accept Medicare?
- Timothy Hernandez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Hernandez's NPI active?
- Yes — Timothy Hernandez's NPI (1851495584) is active in the NPPES registry as of the last update on 2018-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.