Medicare Enrolled

Dr. Sherryl Mitchell Hernandez, M.D.

Nephrology · San Antonio, TX
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
12446 WEST AVE, San Antonio, TX 78216
2107292262
In practice since 2014 (11 years)
NPI: 1578972089 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Mitchell Hernandez from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Mitchell Hernandez? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Mitchell Hernandez

Dr. Sherryl Mitchell Hernandez is a nephrology specialist in San Antonio, TX, with 11 years of NPI registration. Based on federal Medicare data, Dr. Mitchell Hernandez performed 1,046 Medicare services across 549 unique beneficiaries.

Between the years covered by Open Payments, Dr. Mitchell Hernandez received a total of $5,616 from 29 pharmaceutical and/or device companies across 136 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in nephrology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Mitchell Hernandez is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 11 years in practice ▲ 1,046 Medicare services $5,616 industry payments

Medicare Practice Summary

Medicare Utilization ↗
1,046
Medicare services
Bottom 47% in TX for nephrology
549
Unique beneficiaries
$133
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~95 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Office visit, established patient (30-39 min) 342 $69 $316
Dialysis services, 4 or more physician visits per month (20 years or older) 241 $275 $881
Hospital follow-up visit, moderate complexity 122 $60 $199
New patient office visit, complex (60-74 min) 88 $154 $550
Initial hospital admission, high complexity 61 $122 $436
Hospital follow-up visit, high complexity 55 $95 $300
Hemodialysis, single evaluation 48 $55 $180
Dialysis services, 2-3 physician visits per month (20 years or older) 33 $233 $732
Office visit, established patient, complex (40-54 min) 31 $120 $436
Office visit, established patient (20-29 min) 25 $60 $221
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.

Industry Payment Transparency

Open Payments through 2024 ↗
$5,616
Total received (2018-2024)
Avg $802/year across 7 years
Top 18% in TX for nephrology
29
Companies
136
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$5,367 (95.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$249 (4.4%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$911
2023
$826
2022
$806
2021
$426
2020
$55
2019
$363
2018
$2,228

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
BAXTER HEALTHCARE
$1,957
AstraZeneca Pharmaceuticals LP
$470
Otsuka America Pharmaceutical, Inc.
$441
Vifor Pharma, Inc.
$280
Horizon Therapeutics plc
$278
Aurinia Pharma U.S., Inc.
$217
Bayer Healthcare Pharmaceuticals Inc.
$202
Bayer HealthCare Pharmaceuticals Inc.
$197
Travere Therapeutics, Inc.
$175
Fresenius USA Marketing, Inc.
$152
Mallinckrodt LLC
$143
Actelion Pharmaceuticals US, Inc.
$122
AKEBIA THERAPEUTICS INC
$121
Veloxis Pharmaceuticals, Inc.
$116
Amgen Inc.
$112
Baxter Healthcare
$100
ABBVIE INC.
$86
Relypsa, Inc.
$84
CALLIDITAS THERAPEUTICS US INC.
$80
Calliditas Therapeutics US Inc.
$51
GlaxoSmithKline, LLC.
$50
Otsuka Pharmaceutical Development & Commercialization, Inc.
$42
ANI Pharmaceuticals, Inc.
$32
Novartis Pharmaceuticals Corporation
$23
Alexion Pharmaceuticals, Inc.
$22
Lilly USA, LLC
$20
Boehringer Ingelheim Pharmaceuticals, Inc.
$19
Bard Peripheral Vascular, Inc.
$14
OPKO Pharmaceuticals, LLC
$12
Top 3 companies account for 51.1% of total payments
Associated products mentioned in payments ›
ACTHAR · Auryxia · BENLYSTA · EVUSHELD · Envarsus · FARXIGA · JARDIANCE · JYNARQUE · KRYSTEXXA · Kerendia · LOKELMA · LUPKYNIS · PURIFIED CORTROPHIN GEL · Parsabiv · RAYALDEE · Renal - Acute · Renal - CRRT · Renal - Non Product Related · Renal - PD · Renal - Prismaflex System · SOLIRIS · TARPEYO · TAVNEOS · UPTRAVI · VRAYLAR · Vafseo · Velphoro · Veltassa · XGEVA
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →

Most payments (96%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Equivalent to $537 per 100 Medicare services performed
Looking for a nephrology specialist in San Antonio?
Compare nephrologists in the San Antonio area by procedure volume, costs, and industry payment transparency.
Browse nephrologists nearby

Geographic Context

Nephrologists within 10 mi
101
Per 100K population
5.0
County median income
$70,571
Nearest hospital
BAPTIST NEIGHBORHOOD HOSPITAL THOUSAND OAKS
3.7 mi

Data Sources

Provider Registry NPPES Weekly updates
Medicare Enrollment PECOS Monthly updates
Practice Data Medicare Util. Annual (CY lag)
Industry Payments Open Payments CY 2024
Disciplinary History — Not public N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →

Summary

Dr. Mitchell Hernandez is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 18% of TX peers.

This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →

Frequently Asked Questions

Is Dr. Mitchell Hernandez experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Mitchell Hernandez performed 342 office visit, established patient (30-39 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Mitchell Hernandez receive payments from pharmaceutical companies?
Yes. Dr. Mitchell Hernandez received a total of $5,616 from 29 companies across 136 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Mitchell Hernandez's costs compare to other nephrologists in San Antonio?
Dr. Mitchell Hernandez's average Medicare payment per service is $133. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Mitchell Hernandez) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →