Medicare Enrolled
Dr. Willemijntje Hoogerwerf, MD
Gastroenterology · St Augustine, FL
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Hoogerwerf 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. Hoogerwerf?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Hoogerwerf
Dr. Willemijntje Hoogerwerf is a gastroenterology specialist in St Augustine, FL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Hoogerwerf performed 10,554 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Hoogerwerf received a total of $7,947 from 48 pharmaceutical and/or device companies across 465 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 Dr. Hoogerwerf 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.
✓ 19 years of NPI registration
▲ Top 2% volume in FL
$7,947 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗10,554
Medicare services
Top 2% in FL for gastroenterology
Not available
Unique patients (not deduplicated)
$31
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 |
|---|---|---|---|
| Vedolizumab infusion (Entyvio) This procedure involves the administration of vedolizumab via injection. The dosage is measured in milligrams. |
8,700 | $17 | $34 |
| 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. |
619 | $91 | $275 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
381 | $64 | $200 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
147 | $214 | $1,214 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
130 | $122 | $400 |
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
127 | $77 | $650 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
127 | $104 | $850 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
90 | $106 | $300 |
| Normal saline infusion, 250 cc Administration of 250 cubic centimeters of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater fluid. |
89 | $1 | $122 |
| New patient office visit, 15-29 minutes An initial office visit for a new patient lasting 15 to 29 minutes. This code is used when the total time spent on the date of the encounter meets this duration threshold. |
45 | $48 | $200 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
42 | $101 | $425 |
| Colonoscopy for colorectal cancer screening, high risk A colonoscopy performed to screen for colorectal cancer in individuals identified as being at high risk for the disease. |
28 | $184 | $789 |
| Colonoscopy for colorectal cancer screening A colonoscopy performed to screen for colorectal cancer in individuals who are not at high risk for the disease. |
18 | $175 | $767 |
| Upper endoscopy (EGD) A diagnostic exam of the esophagus, stomach, and upper small bowel using a flexible endoscope. |
11 | $86 | $575 |
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.
83.7% high complexity
2.9% medium
13.4% routine
Industry Payment Transparency
Open Payments through 2024 ↗$7,947
Total received (2018-2024)
Avg $1,135/year across 7 years
Top 22% in FL for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
48
Companies
465
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
$1,727
2023
$1,772
2022
$1,485
2021
$1,343
2020
$269
2019
$615
2018
$736
Payments by company (2024)
ABBVIE INC.
$536
Janssen Biotech, Inc.
$392
Takeda Pharmaceuticals U.S.A., Inc.
$175
GENZYME CORPORATION
$100
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$88
Madrigal Pharmaceuticals
$66
Regeneron Healthcare Solutions, Inc.
$64
PFIZER INC.
$60
Ipsen Biopharmaceuticals, Inc
$39
Daiichi Sankyo Inc.
$38
Lilly USA, LLC
$30
Alnylam Pharmaceuticals Inc.
$27
Enterra Medical, Inc.
$24
Phathom Pharmaceuticals, Inc.
$20
IRONWOOD PHARMACEUTICALS, INC
$20
Braintree Laboratories, Inc.
$18
Merck Sharp & Dohme LLC
$16
Ferring Pharmaceuticals Inc.
$15
Top 3 companies account for 63.9% of 2024 payments
All-time payments by company (2018-2024) ›
ABBVIE INC.
$1,448
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$1,251
Janssen Biotech, Inc.
$893
Takeda Pharmaceuticals U.S.A., Inc.
$508
GENZYME CORPORATION
$408
AbbVie, Inc.
$401
Celgene Corporation
$346
AbbVie Inc.
$271
PFIZER INC.
$247
Regeneron Healthcare Solutions, Inc.
$185
Janssen Scientific Affairs, LLC
$125
Merck Sharp & Dohme Corporation
$124
Gilead Sciences, Inc.
$115
Daiichi Sankyo Inc.
$115
Echosens North America, Inc.
$111
Ironwood Pharmaceuticals, Inc
$108
Braintree Laboratories, Inc.
$107
QOL Medical, LLC
$94
Pharmacosmos Therapeutics Inc.
$90
E.R. Squibb & Sons, L.L.C.
$85
BOSTON SCIENTIFIC CORPORATION
$74
Madrigal Pharmaceuticals
$66
Merck Sharp & Dohme LLC
$65
INTERCEPT PHARMACEUTICALS, INC.
$62
Allergan Inc.
$53
Intercept Pharmaceuticals, Inc.
$52
Ferring Pharmaceuticals Inc.
$52
Amgen Inc.
$45
Ipsen Biopharmaceuticals, Inc
$39
Enterra Medical, Inc.
$38
Synergy Pharmaceuticals Inc
$33
Ardelyx, Inc.
$32
Lilly USA, LLC
$30
Alnylam Pharmaceuticals Inc.
$27
Bausch Health US, LLC
$23
Heron Therapeutics, Inc.
$23
VIVUS LLC
$22
Phathom Pharmaceuticals, Inc.
$20
IRONWOOD PHARMACEUTICALS, INC
$20
Axonics Modulation Technologies, Inc.
$19
Allergan, Inc.
$17
Nestle HealthCare Nutrition Inc.
$16
Ambu Inc.
$16
Apollo Endosurgery US Inc
$16
Medtronic, Inc.
$16
AstraZeneca Pharmaceuticals LP
$15
Pacira Pharmaceuticals Incorporated
$13
Concordia Pharmaceuticals Inc.
$12
Top 3 companies account for 45.2% of all-time payments
Associated products mentioned in payments ›
APLENZIN · AVSOLA · Axonics r-SNM System · CLENPIQ · CREON · Creon · DIFICID · DUPIXENT · Donnatal · ENTYVIO · EOHILIA · Entyvio · Exparel · FibroScan · GATTEX · GENERAL THERAPIES · GI Genius · GIVLAARI · HUMIRA · Humira · IBSRELA · INFLECTRA · INJECTAFER · IQIRVO · LINZESS · Linzess · MAVYRET · MONOFERRIC · MOTOFEN · MOVANTIK · Mavyret · Monoferric · OCALIVA · OMVOH · Qsymia · REBYOTA · RELISTOR · RELISTOR ORAL · REMICADE · RESMETIROM · RINVOQ · SKYRIZI · STELARA · SUCRAID · SUFLAVE · SUPREP · SUPREP BOWEL PREP · SUTAB · TREMFYA · TRULANCE · Trulance · UCERIS · UCERIS TABLETS · VELSIPITY · VIBERZI · VOQUEZNA · X-Tack Endoscopic HeliX Tacking System · XELJANZ · XIFAXAN · XIFAXANIBSD · XIFIXAN · ZENPEP · ZEPATIER · ZEPOSIA · Zynrelef
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
Gastroenterologists in nearby ZIP areas
18
County median income
$106,169
Nearest hospital to ZIP centroid (approximate)
FLAGLER HOSPITAL
0.0 mi
0.0 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
Dr. Hoogerwerf is a mixed practice specialist, with above-average Medicare volume (top 2% in FL), with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Hoogerwerf experienced with vedolizumab infusion (entyvio)?
Based on Medicare claims data, Dr. Hoogerwerf performed 8,700 vedolizumab infusion (entyvio) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Hoogerwerf receive payments from pharmaceutical companies?
Yes. Dr. Hoogerwerf received a total of $7,947 from 48 companies across 465 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 Dr. Hoogerwerf's costs compare to other gastroenterologists in St Augustine?
Dr. Hoogerwerf's average Medicare payment per service is $31. 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. Hoogerwerf) 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 →
Explore related providers
Specialty guide
Understanding Gastroenterology
Common procedures, typical costs, and what industry payments mean in gastroenterology.
Same specialty & city
Gastroenterologists in St Augustine
Browse gastroenterologists in St Augustine ranked by procedure volume and transparency data.
Highest volume
Top Gastroenterologists in FL
Gastroenterologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Gastroenterologists in FL
Which FL gastroenterologists receive the most from drug and device companies.
By company
ABBVIE INC. Payments to Doctors
See all physicians who received payments from ABBVIE INC.
By company
Salix Pharmaceuticals, a division of Bausch Health US, LLC Payments to Doctors
See all physicians who received payments from Salix Pharmaceuticals, a division of Bausch Health US, LLC.
By company
Janssen Biotech, Inc. Payments to Doctors
See all physicians who received payments from Janssen Biotech, Inc.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology