Dr. Mark Steven Hernandez, MD

  • Austin, TX
  • Internist
NPI1093783490PAC ID5991708778
Medicare services, 2024
5,558
Medicare patients, 2024
373
Part D claims, 2024
6,488
Hospital affiliations
1
Industry payments
$2,912
Practice address
1004 W. 32nd Street, Austin, TX 78705
Practice phone
Call (512) 454-5171
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Capital Medical Clinic

Mammography / Breast Imaging Center · Austin, Texas

See all 8 affiliations

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Dr. Mark Steven Hernandez is an internist in Austin, Texas

Dr. Hernandez practices at Capital Medical Clinic in Austin, Texas.

Dr. Hernandez's NPI, 1093783490, was assigned on March 10, 2006. Dr. Hernandez graduated from Baylor College Of Medicine in 2003. Dr. Hernandez holds Texas license M2976.

NPI and contact details
Medicare PAC ID
5991708778
NPI enumeration date
March 10, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(512) 454-5171
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
49
Medical school graduation
2003

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark Steven Hernandez practices at Capital Medical Clinic in Austin, Texas

Dr. Hernandez's primary practice is Capital Medical Clinic, at 1004 W. 32nd Street, Austin, TX 78705. The practice phone is (512) 454-5171.

  • Capital Medical Clinic
    1004 W. 32nd Street, Austin, TX 78705Phone(512) 454-5171

Source: Dmand AI Affiliation Data

Dr. Mark Steven Hernandez is affiliated with 7 sites of care and 1 medical group

Dr. Hernandez's primary practice is Capital Medical Clinic in Austin, Texas. Dr. Hernandez is also affiliated with St. David's Medical Center. The medical group on file is Capital Medical Clinic. Dmand AI also links Dr. Hernandez to 3 more home health agencies, 1 clinical lab and 1 group practice or clinic, each named with a free account. Dr. Hernandez's employer is on file too: a breast imaging center.

See all 8 affiliations for Dr. Hernandez

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mark Steven Hernandez's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hernandez practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Capital Medical ClinicAvailable with a free account
+6 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mark Steven Hernandez is one of 8,437 internists in Texas

Internal medicine is Dr. Hernandez's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hernandez is board certified in internal medicine by the American Board of Internal Medicine. Dr. Hernandez is licensed in Texas.

Specialties and state licenses

  • Internal medicine, TexasPrimaryLicense M2976 · 2006 to 2026 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acne, acute kidney failure, acute sinusitis, acute skin infection, anxiety, asthma, cerebrovascular disease and chronic anemia among the conditions Dr. Hernandez treats.

Internists near Dr. Hernandez

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Mark Steven Hernandez billed Medicare for 5,558 services in 2024

CMS data shows 5,558 Medicare services from Dr. Hernandez across 40 procedure codes in 2024, for 373 Medicare patients. Medicare paid $109,472 for them. Every service was in an office.

Medicare services, 20245,558
Medicare patients373
Paid by Medicare$109,472
Procedure codes40

Dr. Hernandez's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Lab and pathology
2023: 6722024: 3,714453%
Office and hospital visits
2023: 4242024: 61445%
Other services
2023: 1282024: 608375%
Surgery
2023: 1182024: 385226%
Tests and treatments
2023: 722024: 13689%
Imaging
2023: 392024: 101159%

Dr. Hernandez compared with the Texas median for internists, 2024

  • Dr. Hernandez
  • Texas median
Medicare services
5,558vs 53910.3 times
Medicare patients
373vs 19096% above
Part D claims
5,750vs 28919.9 times

Medians across 7,794 internists in Texas with Dmand AI profiles that report each measure.

Dr. Hernandez's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Hernandez

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mark Steven Hernandez treated 373 Medicare patients in 2024, average age 76

CMS counts 373 Medicare patients who saw Dr. Hernandez in 2024. The largest group is 65 to 74, with 157 patients. 75% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 0.95, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hernandez's median patient age at 70, with 38% women.

Medicare patients, 2024373
Average age76
Average risk score0.95

Dr. Hernandez's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Hernandez's Medicare patients by sex, 2024

  • Women15642%
  • Men21758%

Chronic conditions among Dr. Hernandez's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure70%
  3. Arthritis40%
  4. Ischemic heart disease30%
  5. Mood disorders21%
  6. Anxiety20%
  7. Diabetes20%
  8. Depression19%

Share of Medicare patients with each condition. A patient can have several.

Dr. Hernandez's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women38%
  • Men61%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mark Steven Hernandez wrote 6,488 Medicare Part D claims in 2024

In 2024, Dr. Hernandez wrote 6,488 Medicare Part D claims for 618 patients. 90% of them were for generic drugs. CMS names the drug for 5,750 of them, across 114 drugs with 11 or more claims each, at $393,493 in total drug cost. In 2023, CMS named 3,358 claims across 83 drugs.

Part D claims, 20246,488
Drugs named by CMS114
Total drug cost$393,493
Part D patients618

Dr. Hernandez's Part D claims by kind of drug, 2024

  • Generic5,839 claims90%
  • Brand-name625 claims10%
  • Other24 claims0%

Dr. Hernandez's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Hernandez's Part D claims, 2024

  • Opioids1%72 of 6,488 claims
  • Antibiotics1%89 of 6,488 claims
  • Antipsychotics, patients 65 and over0%12 of 6,488 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3,3582024: 5,75071%

Drugs named by CMS: 114 in 2024, 83 in 2023.

See all prescribing by Dr. Hernandez

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Mark Steven Hernandez offers telehealth to Medicare patients

Dr. Hernandez accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hernandez as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Mark Steven Hernandez received $2,912 in industry payments from 2023 to 2025

CMS Open Payments shows 166 general payments to Dr. Hernandez from 19 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 99% of the total. GlaxoSmithKline, LLC. paid the most, $858.

General payments to Dr. Hernandez by program year, 2023 to 2025

General payments to Dr. Hernandez by kind, 2023 to 2025

$2.9Kin total
  • Food and beverage$2,89299%
  • Education$201%

Companies that paid Dr. Hernandez the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Hernandez

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mark Steven Hernandez graduated from Baylor College Of Medicine

Dr. Hernandez graduated from Baylor College Of Medicine in 2003.

  1. Medical schoolBaylor College Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mark Steven Hernandez accepts plans from 16 insurance carriers

Dr. Hernandez is in network with 16 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • HCSC
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • Humana
  • +8 more carriersWith a free account

Plan types Dr. Hernandez accepts, by number of carriers

  1. PPO11
  2. Medicare9
  3. HMO7
  4. EPO4
  5. POS4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mark Steven Hernandez's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mark Steven Hernandez

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Mark Steven Hernandez's NPI number?

Dr. Mark Steven Hernandez's NPI number is 1093783490. It was assigned on March 10, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark Steven Hernandez?

Dr. Mark Steven Hernandez is an internist in Austin, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Mark Steven Hernandez practice?

Dr. Hernandez practices at 1004 W. 32nd Street, Austin, TX 78705. Dr. Hernandez's primary practice is Capital Medical Clinic in Austin, Texas. Dmand AI also links Dr. Hernandez to 3 home health agencies, 1 clinical lab and 1 group practice or clinic.

What is Dr. Mark Steven Hernandez's office phone number?

The practice phone on file for Dr. Hernandez is (512) 454-5171.

What is Dr. Mark Steven Hernandez's medical license number?

Dr. Hernandez holds Texas license M2976.

Which hospitals is Dr. Mark Steven Hernandez affiliated with?

Dr. Hernandez is affiliated with St. David's Medical Center.

What medical group is Dr. Mark Steven Hernandez part of?

Dr. Hernandez is linked to Capital Medical Clinic.

Does Dr. Mark Steven Hernandez accept Medicare?

Yes. CMS data shows Dr. Hernandez billed Medicare for 5,558 services in 2024, and Dr. Hernandez accepts Medicare assignment.

Does Dr. Mark Steven Hernandez offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Hernandez as offering telehealth services.

How many Medicare patients does Dr. Mark Steven Hernandez see?

CMS counts 373 Medicare patients who saw Dr. Hernandez in 2024, with an average age of 76.

Show 7 more questionsShow fewer questions

Is Dr. Mark Steven Hernandez board certified?

Yes. Dr. Hernandez is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Mark Steven Hernandez bill to Medicare?

In 2024, Dr. Hernandez's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and lab and pathology test (85025).

Where did Dr. Mark Steven Hernandez go to medical school?

Dr. Hernandez graduated from Baylor College Of Medicine in 2003.

What drugs does Dr. Mark Steven Hernandez prescribe most?

In 2024 Medicare Part D data, Dr. Hernandez's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.

Has Dr. Mark Steven Hernandez received payments from drug or device companies?

CMS Open Payments shows $2,912 in general payments to Dr. Hernandez from 19 companies from 2023 to 2025. The largest total came from GlaxoSmithKline, LLC.

How long has Dr. Mark Steven Hernandez been practicing?

Dr. Hernandez graduated from medical school in 2003, 23 years ago.

What insurance does Dr. Mark Steven Hernandez accept?

Dr. Hernandez is in network with 16 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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