DR. MARK STEVEN HERNANDEZ (M.D.) – Internal Medicine Physician, NPI 1093783490
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,290 INTERNAL MEDICINE in TX
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Provider Addresses for DR. MARK STEVEN HERNANDEZ (M.D.)
902 POLISHED STONE CV
PFLUGERVILLE, TX 786604795
Phone: (512) 990-0123
Fax: (512) 477-8933
Type: Mailing
601, East 15th Street, Medical District, Austin, Travis County, Texas, 78701, United States
BRACKENRIDGE HOSPITAL ANNEX
AUSTIN, TX 787011930
Phone: (512) 324-8355
Fax: (512) 477-8933
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 95 Open Payments records for all available years, with a total value of $1,686.
Total Amount is formed as General ($1,686) + Research ($0) + Ownership ($0) = $1,686.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($646).
Total Amount
$1,686
General + Research + Ownership
Payments
95
Total payment records
General Amount
$1,686
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $646 |
| Novo Nordisk Inc | $357 |
| Lilly USA, LLC | $283 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $75 |
| Astellas Pharma US Inc | $73 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2006-08-16
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20060816000527 | I | Internal Medicine | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 161 | 108 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 134 | 106 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 118 | 86 | $0 |
| 83615 | Lactate dehydrogenase (enzyme) level | 79 | 67 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 78 | 70 | $0 |
Insurance plans in this area (ZIP 78660)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | TX | |
| Physician Assistant | TX | |
| - | TX | |
| - | TX | |
| Internal Medicine | TX | |
| Physician Assistant | TX | |
| Internal Medicine | TX | |
| - | TX | |
| Physician Assistant | TX | |
| Internal Medicine | TX |
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