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Edit this profileAt a glance
- 601 E 15Th St, Brackenridge Hospital Annex, Austin, TX 78701
About Dr. Hernandez
Mark S. Hernandez, M.D. practices internal medicine in Austin, TX. Mark is a 2003 graduate of Baylor College of Medicine. According to Medicare claims data, Mark cared for 4,561 Medicare patients across 5,253 services. The services billed most often include insertion of needle into vein for collection of blood sample, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count. The provider's National Provider Identifier (NPI) is 1093783490.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (512) 324-8355
- Email not available
Practice Locations
601 E 15TH ST BRACKENRIDGE HOSPITAL ANNEX
Austin, TX 78701
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
5,253 services · 4,561 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
385 | More often than most peers in Internal Medicine |
| X-ray of chest, 2 views | Imaging | 71046 |
82 | More often than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
74 | More often than most peers in Internal Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
62 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
352 | More often than most peers in Internal Medicine |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
310 | More often than most peers in Internal Medicine |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
304 | More often than most peers in Internal Medicine |
| Lactate dehydrogenase (enzyme) level | Lab test | 83615 |
301 | More often than most peers in Internal Medicine |
| Uric acid level, blood | Lab test | 84550 |
293 | More often than most peers in Internal Medicine |
| Glutamyltransferase (liver enzyme) level | Lab test | 82977 |
282 | As often as other peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists 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 internists 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.
Common questions
What kind of doctor is Mark S. Hernandez?
Mark S. Hernandez is an internist in Austin, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Mark S. Hernandez's address?
Mark S. 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 Mark S. Hernandez?
The number on file is (512) 324-8355. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark S. Hernandez's NPI number?
Mark S. 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 Mark S. Hernandez train?
Mark S. Hernandez attended Baylor College of Medicine, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Mark S. Hernandez been practicing?
Mark S. 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 Mark S. Hernandez perform?
According to Medicare billing data, Mark S. 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 Mark S. Hernandez confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark S. Hernandez. If this is you, claiming it is free.
Guide.md
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