Physician Profile
Unclaimed ProfileAbout HERNANDEZ
Mark Steven Hernandez, M.D. practises internal medicine in Austin, TX. Mark is a 2003 graduate of Baylor College of Medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Hernandez?
Dr. Hernandez is an internal medicine in Austin, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
What is Dr. Hernandez's address?
Dr. Hernandez is listed at 601 E 15TH ST BRACKENRIDGE HOSPITAL ANNEX, Austin, TX 78701. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Hernandez?
The number on file is (512) 324-8355. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Hernandez's NPI number?
Dr. Hernandez's National Provider Identifier is 1093783490. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Hernandez train?
Dr. Hernandez attended Baylor College of Medicine, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Hernandez been practising?
Dr. Hernandez has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Hernandez perform?
According to Medicare billing data, Dr. Hernandez performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as x-ray of chest, 2 views; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Hernandez confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hernandez. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (512) 324-8355
- Email not available
Practice Locations
601 E 15TH ST BRACKENRIDGE HOSPITAL ANNEX
Austin, TX 78701
Procedures Most Often Billed to Medicare
5,253 services · 4,561 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
385 |
| X-ray of chest, 2 views | Imaging | 71046 |
82 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
74 |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
62 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
352 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
310 |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
304 |
| Lactate dehydrogenase (enzyme) level | Lab test | 83615 |
301 |
| Uric acid level, blood | Lab test | 84550 |
293 |
| Glutamyltransferase (liver enzyme) level | Lab test | 82977 |
282 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other internal medicines in Austin 7
Same specialty, same city.
Trained at Baylor College of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Baylor College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in TX who bill this service to Medicare most often.
- Quest Diagnostics Clinical Laboratories INC
- Clinical Pathology Laboratories, INC.
- Quest Diagnostics Clinical Laboratories INC
- Laboratory Corporation of America
- Laboratory Corporation of America
- Lone Star Pathology PLLC
- Medical Clinic of Houston, LLP
- The University of Texas Southwestern Medical Center at Dallas
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.