Mark Hernandez, M.D.
NPI 1093783490 · Internal Medicine Physician · Austin, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Hernandez, M.D. is a Internal Medicine Physician provider in Austin, TX (NPI 1093783490).
Provider details
- NPI number
- 1093783490
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- M2976 (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
20 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
5,496 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 385 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 352 | $126 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 310 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 304 | $10 |
| Lactate Dehydrogenase (enzyme) Level83615 | 301 | $6 |
| Uric Acid Level, Blood84550 | 293 | $4 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 388 | 135 |
| Rosuvastatin Calcium | 347 | 109 |
| Amlodipine Besylate | 262 | 85 |
| Levothyroxine Sodium | 250 | 82 |
| Losartan Potassium | 202 | 72 |
| Lisinopril | 171 | 50 |
| Tamsulosin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,189 across 67 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
- 2006-03-10
- Last updated
- 2012-12-27
Frequently asked questions
- What is Mark Hernandez's NPI number?
- Mark Hernandez's National Provider Identifier (NPI) is 1093783490, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Hernandez's specialty?
- Mark Hernandez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Hernandez located?
- Mark Hernandez's practice location on file with NPPES is 601 E 15th St, Austin, TX 78701-1930.
- What is Mark Hernandez's phone number?
- The practice phone number listed in the NPPES registry for Mark Hernandez is (512) 324-8355.
- Does Mark Hernandez accept Medicare?
- Mark Hernandez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Hernandez's NPI active?
- Yes — Mark Hernandez's NPI (1093783490) is active in the NPPES registry as of the last update on 2012-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.