Medicare Enrolled
Shannon Gregorek, NP-C
Nurse Practitioner - Family · Houston, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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 Gregorek 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 Gregorek?
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What this data tells you about Gregorek
Shannon Gregorek is a nurse practitioner - family in Houston, TX, with 17 years of NPI registration. Based on federal Medicare data, Gregorek performed 1,719 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Gregorek received a total of $9,724 from 58 pharmaceutical and/or device companies across 547 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Gregorek is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 17 years of NPI registration
▲ Top 8% volume in TX
$9,724 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗1,719
Medicare services
Top 8% in TX for nurse practitioner - family
Not available
Unique patients (not deduplicated)
$23
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
260 | $82 | $330 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
228 | $10 | $43 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
227 | $16 | $69 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
207 | $13 | $55 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
197 | $10 | $40 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
187 | $9 | $37 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
139 | $29 | $111 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
101 | $8 | $10 |
| Blood glucose test using hand-held instrument A test that measures the level of sugar in the blood using a portable device. The result helps monitor blood glucose levels. |
65 | $3 | $10 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
54 | $8 | $32 |
| Continuous glucose monitoring with interpretation This procedure involves monitoring blood sugar levels in tissue fluid using a sensor placed under the skin, along with the interpretation and reporting of the results. |
33 | $24 | $133 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
21 | $15 | $62 |
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. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$9,724
Total received (2021-2024)
Avg $2,431/year across 4 years
Top 1% in TX for nurse practitioner - family
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
58
Companies
547
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,677
2023
$2,907
2022
$2,134
2021
$2,006
Payments by company (2024)
Lilly USA, LLC
$378
Corcept Therapeutics
$292
Novartis Pharmaceuticals Corporation
$254
Insulet Corporation
$205
Abbott Laboratories
$136
Astellas Pharma US Inc
$130
Amgen Inc.
$120
Dexcom, Inc.
$117
Novo Nordisk Inc
$114
Mannkind Corporation
$94
Tandem Diabetes Care, Inc.
$81
SANOFI-AVENTIS U.S. LLC
$74
Amneal Pharmaceuticals LLC
$66
Xeris Pharmaceuticals, Inc.
$58
Bayer Healthcare Pharmaceuticals Inc.
$54
Averitas Pharma Inc.
$48
Antares Pharma, Inc.
$46
Esperion Therapeutics, Inc.
$42
BETA BIONICS, INC.
$42
IBSA Pharma Inc.
$36
ABBVIE INC.
$33
Verity Pharmaceuticals Inc.
$31
Kyowa Kirin, Inc.
$29
Boehringer Ingelheim Pharmaceuticals, Inc.
$28
Embecta Corp.
$28
Janssen Pharmaceuticals, Inc
$24
Medtronic, Inc.
$22
TheracosBio, LLC
$22
Chiesi USA, Inc.
$21
Amphastar Pharmaceuticals, Inc.
$18
Tolmar, Inc.
$14
Currax Pharmaceuticals LLC
$14
Corium, LLC
$5
Top 3 companies account for 34.5% of 2024 payments
All-time payments by company (2021-2024) ›
Lilly USA, LLC
$1,081
MannKind Corporation
$854
Insulet Corporation
$521
AstraZeneca Pharmaceuticals LP
$511
Dexcom, Inc.
$472
Novo Nordisk Inc
$465
Abbott Laboratories
$444
Novartis Pharmaceuticals Corporation
$404
SANOFI-AVENTIS U.S. LLC
$362
Corcept Therapeutics
$351
Intuity Medical Inc
$349
Mannkind Corporation
$302
Boehringer Ingelheim Pharmaceuticals, Inc.
$249
Amgen Inc.
$220
IBSA Pharma Inc.
$204
Astellas Pharma US Inc
$188
Amarin Pharma Inc.
$186
DEXCOM, INC.
$179
Xeris Pharmaceuticals, Inc.
$158
Bayer Healthcare Pharmaceuticals Inc.
$141
Esperion Therapeutics, Inc.
$136
Merck Sharp & Dohme LLC
$131
Tandem Diabetes Care, Inc.
$128
ABBVIE INC.
$123
Amneal Pharmaceuticals LLC
$119
Ipsen Biopharmaceuticals, Inc
$89
Bayer HealthCare Pharmaceuticals Inc.
$88
Zealand Pharma US, Inc.
$87
PFIZER INC.
$80
Merck Sharp & Dohme Corporation
$77
Horizon Therapeutics plc
$69
Alexion Pharmaceuticals, Inc.
$67
AbbVie Inc.
$66
Antares Pharma, Inc.
$66
VIVUS LLC
$51
Tolmar, Inc.
$51
Averitas Pharma Inc.
$48
Medtronic, Inc.
$46
Amryt Pharma Holdings Ltd
$42
Apollo Endosurgery US Inc
$42
BETA BIONICS, INC.
$42
Supernus Pharmaceuticals, Inc.
$42
Currax Pharmaceuticals LLC
$41
Corium, LLC
$37
Alvogen Inc
$31
Verity Pharmaceuticals Inc.
$31
Kyowa Kirin, Inc.
$29
Embecta Corp.
$28
Radius Health, Inc.
$25
Janssen Pharmaceuticals, Inc
$24
TheracosBio, LLC
$22
Ascensia Diabetes Care Us Inc.
$21
Chiesi USA, Inc.
$21
Teva Pharmaceuticals USA, Inc.
$19
Amphastar Pharmaceuticals, Inc.
$18
Clarus Therapeutics Inc.
$17
RECORDATI_RARE_DISEASES_INC.
$14
Kowa Pharmaceuticals America, Inc.
$12
Top 3 companies account for 25.3% of all-time payments
Associated products mentioned in payments ›
AFREZZA · AUSTEDO · AZSTARYS · Azstarys · BAQSIMI · BD Nano 2nd Gen Pen Needle · BELSOMRA · Brenzavvy · CONTRAVE · Crysvita · DEXCOM G6 TRANSMITTER · Dexcom G6 Transmitter · ENTRESTO · EVENITY · EVERSENSE E3 SMART TRANSMITTER KIT · FARXIGA · FREESTYLE LIBRE · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · FreeStyle Libre · FreeStyle Libre 2 · GVOKE HYPOPEN · GVOKE PFS · HUMULIN · JANUVIA · JARDIANCE · JATENZO · Kerendia · Korlym · LEQVIO · LICART · LYUMJEV · Livalo · MINIMED 780G · MOUNJARO · MYALEPT · MYCAPSSA · NEXLETOL · Omnipod · OverStitch Endoscopic Suturing System · Ozempic · Pogo Automatic Blood Glucose Monitoring System · QSYMIA · QUTENZA · Qsymia · Repatha · Rybelsus · SIGNIFOR LAR · SOLIQUA 100/33 · SOMATULINE DEPOT · SOMAVERT · SPRAVATO · STEGLATRO · STEGLUJAN · STRENSIQ · SYNTHROID · Saxenda · Somatuline Depot · Strensiq · TEPEZZA · TERIPARATIDE · TLANDO · TOUJEO · TRULICITY · TZIELD · Tirosint · Tlando · Tymlos · UNITHROID · V-GO DISPOSABLE INSULIN DELIVERY · VRAYLAR · Vascepa · Veozah · Wegovy · XYOSTED · ZEGALOGUE · iLet Bionic Pancreas · t:slim X2 Insulin Pump with Control-IQ
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Family nurse practitioners in nearby ZIP areas
3,186
County median income
$73,104
Nearest hospital to ZIP centroid (approximate)
LONE STAR BEHAVIORAL HEALTH CYPRESS
5.9 mi
5.9 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Gregorek is a clinical cardiology specialist, with above-average Medicare volume (top 8% in TX), with 17 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Gregorek experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Gregorek performed 260 office visit, established patient (30-39 min) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Gregorek receive payments from pharmaceutical companies?
Yes. Gregorek received a total of $9,724 from 58 companies across 547 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Gregorek's costs compare to other family nurse practitioners in Houston?
Gregorek's average Medicare payment per service is $23. 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 Gregorek) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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. Data Coverage reflects 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.
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