Medicare Enrolled
Dr. Peter Wolk, M.D.
Cardiovascular Disease · Chico, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Speaking/Promotional
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. Wolk 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. Wolk?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Wolk
Dr. Peter Wolk is a cardiovascular disease specialist in Chico, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Wolk performed 9,487 Medicare services across 6,890 unique beneficiaries.
Between the years covered by Open Payments, Dr. Wolk received a total of $75,320 from 45 pharmaceutical and/or device companies across 1038 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Wolk 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.
✓ 20 years in practice
▲ Top 7% volume in CA
$75,320 industry payments
Medicare Practice Summary
Medicare Utilization ↗9,487
Medicare services
Top 7% in CA for cardiovascular disease
6,890
Unique beneficiaries
$82
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~474 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) 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. |
4,045 | $91 | $140 |
| 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. |
731 | $62 | $80 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
584 | $154 | $355 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
448 | $134 | $193 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
436 | $11 | $40 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
266 | $138 | $215 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
247 | $85 | $110 |
| External EKG monitoring, 8-15 days Continuous external electrocardiogram recording and review over a period of 8 to 15 days to monitor heart rhythm. |
228 | $20 | $30 |
| Continuous external EKG monitoring, 8-15 days This procedure involves recording heart rhythm continuously using an external EKG device over a period of 8 to 15 days. |
217 | $10 | $30 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram under physician supervision and review. |
207 | $47 | $150 |
| Continuous EKG monitoring review, 48-7 days Review and interpretation of continuous external EKG recordings lasting more than 48 hours up to 7 days. |
189 | $18 | $30 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
188 | $28 | $48 |
| Continuous external EKG monitoring, 48 hours to 7 days This procedure involves recording the heart's electrical activity continuously using an external device for a period exceeding 48 hours but not more than 7 days. |
172 | $10 | $30 |
| 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. |
172 | $123 | $180 |
| Cardiac catheterization | 154 | $192 | $495 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while an electrocardiogram is monitored under physician supervision. |
148 | $17 | $48 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
148 | $11 | $32 |
| Remote pacemaker monitoring, 90 days Remote assessment of a pacemaker system, including single, dual, multiple lead, or leadless devices, performed up to 90 days apart. |
74 | $22 | $40 |
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
65 | $5 | $19 |
| Follow-up heart ultrasound An ultrasound of the heart performed to monitor or reassess a previously identified condition or treatment progress. |
65 | $19 | $56 |
| Remote pacemaker/defibrillator monitoring, 90 days Remote evaluation of a pacemaker or implantable defibrillator system within 90 days of the last check. |
56 | $18 | $30 |
| 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. |
48 | $103 | $138 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
46 | $64 | $98 |
| External shock to heart to regulate heart beat A procedure that delivers an electric shock to the heart from outside the body to restore a normal heart rhythm. |
41 | $85 | $175 |
| Follow-up ultrasound of heart blood flow, valves and chambers An ultrasound exam that follows up on the heart's blood flow, valves, and chambers. It uses sound waves to create images of the heart's structure and function. |
39 | $5 | $16 |
| New patient office visit, complex (60-74 min) | 37 | $161 | $235 |
| Pacemaker system evaluation Assessment of a pacemaker device, including single, dual, multiple lead, or leadless systems. |
34 | $16 | $27 |
| Programming of dual lead implantable defibrillator system Adjustment and testing of the settings for an implanted heart device with two leads to ensure proper function. |
32 | $41 | $66 |
| Remote evaluation of implantable defibrillator system Remote assessment of a single, dual, or multiple lead implantable defibrillator system within 90 days of the previous evaluation. |
31 | $29 | $70 |
| Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist | 31 | $273 | $625 |
| Pacemaker programming, single lead Adjustment and testing of a single-lead pacemaker to ensure it functions correctly. |
29 | $22 | $40 |
| Stent placement and plaque removal in one vessel A procedure to clear plaque and blood clots from a single blood vessel, followed by the insertion of a stent and/or balloon dilation to keep the vessel open. |
27 | $497 | $755 |
| Programming of multiple lead implantable defibrillator system Adjustment and testing of the settings for an implanted heart device with multiple leads to ensure proper function. |
27 | $47 | $79 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | 24 | $221 | $575 |
| Coronary stent placement A procedure to insert a stent into a coronary artery or its branch to keep it open, using balloon dilation during the process. |
23 | $443 | $700 |
| Programming of single lead implantable defibrillator system Adjustment and testing of the settings for a single-lead implantable cardioverter-defibrillator (ICD) to ensure proper function. |
22 | $30 | $53 |
| Echocardiogram, transthoracic An ultrasound test that uses sound waves to create images of the heart's blood flow, valves, and chambers. |
20 | $42 | $95 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
20 | $20 | $64 |
| Stress echocardiogram with ECG monitoring An ultrasound of the heart performed while monitoring heart rhythm during rest, exercise, or medication-induced stress, followed by a review and report of the findings. |
20 | $177 | $360 |
| Continuous ECG monitoring with transmission and review Continuous electrocardiogram monitoring for up to 30 days with symptom tracking. The data is transmitted and reviewed by a healthcare professional who provides a report. |
16 | $20 | $54 |
| 2-day continuous ECG with review and report A two-day continuous electrocardiogram recording that includes a professional review and written report of the results. |
15 | $57 | $150 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
15 | $14 | $42 |
| Radiologist review of abdominal aorta image A radiologist reviews images of the abdominal aorta to evaluate the blood vessel. |
13 | $52 | $84 |
| Aortography with contrast and radiologist review An imaging procedure using contrast dye to visualize the aorta above the heart valve, including professional review by a radiologist. |
13 | $28 | $120 |
| Hospital discharge management, 30+ min This service covers the care provided by a physician or qualified healthcare professional on the day a patient is discharged from the hospital. It requires more than 30 minutes of total time spent on the day of discharge. |
13 | $82 | $105 |
| Radiologist review of arm or leg artery images A radiologist reviews images of the arteries in one or both arms or legs to assess blood flow and vessel health. |
11 | $72 | $100 |
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.
14.4% high complexity
6.4% medium
79.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$75,320
Total received (2018-2024)
Avg $10,760/year across 7 years
Top 7% in CA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
45
Companies
1,038
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.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$39,957 (53.0%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$35,363 (47.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,979
2023
$3,450
2022
$5,446
2021
$3,762
2020
$4,644
2019
$31,891
2018
$23,148
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$392
ABIOMED
$347
Janssen Pharmaceuticals, Inc
$296
Novartis Pharmaceuticals Corporation
$230
PFIZER INC.
$226
ShockWave Medical, Inc
$191
Alnylam Pharmaceuticals Inc.
$143
Esperion Therapeutics, Inc.
$120
AstraZeneca Pharmaceuticals LP
$119
Novo Nordisk Inc
$112
Edwards Lifesciences Corporation
$95
Lexicon Pharmaceuticals, Inc.
$94
Daiichi Sankyo Inc.
$91
Boehringer Ingelheim Pharmaceuticals, Inc.
$84
Philips North America LLC
$83
Merck Sharp & Dohme LLC
$75
Amgen Inc.
$75
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$62
E.R. Squibb & Sons, L.L.C.
$49
Kiniksa Pharmaceuticals International, plc
$30
Baxter Healthcare
$29
Chiesi USA, Inc.
$20
Medtronic, Inc.
$14
Top 3 companies account for 34.8% of 2024 payments
All-time payments by company (2018-2024) ›
Janssen Pharmaceuticals, Inc
$37,495
Medtronic Vascular, Inc.
$12,917
Abbott Laboratories
$5,694
Novartis Pharmaceuticals Corporation
$5,652
Amgen Inc.
$2,317
Medtronic, Inc.
$2,123
AstraZeneca Pharmaceuticals LP
$1,016
ABIOMED
$923
PFIZER INC.
$789
Edwards Lifesciences Corporation
$639
Amarin Pharma Inc.
$490
Esperion Therapeutics, Inc.
$483
E.R. Squibb & Sons, L.L.C.
$442
Merck Sharp & Dohme LLC
$439
ShockWave Medical, Inc
$403
Boston Scientific Corporation
$397
Boehringer Ingelheim Pharmaceuticals, Inc.
$348
SANOFI-AVENTIS U.S. LLC
$341
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$304
Daiichi Sankyo Inc.
$247
Regeneron Healthcare Solutions, Inc.
$216
Alnylam Pharmaceuticals Inc.
$166
Chiesi USA, Inc.
$140
PORTOLA PHARMACEUTICALS, LLC
$113
Novo Nordisk Inc
$112
Lexicon Pharmaceuticals, Inc.
$112
La Jolla Pharmaceutical Company
$105
Lilly USA, LLC
$102
Philips North America LLC
$83
Allergan Inc.
$72
PORTOLA PHARMACEUTICALS, INC.
$72
ARBOR PHARMACEUTICALS, INC.
$66
HeartFlow, Inc.
$65
Merck Sharp & Dohme Corporation
$61
Kiniksa Pharmaceuticals, Ltd.
$56
Actelion Pharmaceuticals US, Inc.
$53
Baxter Healthcare
$47
BOSTON SCIENTIFIC CORPORATION
$46
Shockwave Medical, Inc
$39
Kiniksa Pharmaceuticals International, plc
$30
Avinger Inc.
$24
Lundbeck LLC
$23
BIOTRONIK INC.
$22
Cardiovascular Systems Inc.
$19
Bayer Healthcare Pharmaceuticals Inc.
$17
Top 3 companies account for 74.5% of all-time payments
Associated products mentioned in payments ›
(CM9) Amb Mon & Diag Und · AMVUTTRA · ANDEXXA · ASSURITY · AVEIR · AVVIGO Guidance System · AZURE XT DR MRI SURESCAN · Advisa · Amplia MRI · Arcalyst · Assurity Pacemaker · Azure · BRILINTA · BYSTOLIC · CAMZYOS · CHANTIX · CONFIRM RX · CRT-Ds · Claria MRI · ClosureFast · Confirm Rx · Corlanor · Diamondback Peripheral · EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) · ELIQUIS · ENSITE PRECISION · ENTRESTO · EUPHORA · Edarbi · Edarbyclor · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · Ellipse ICD · FARXIGA · FFRct · FORTIFY ASSURA · Fortify Assura · GALLANT · GIAPREZA · General - Catheter · HAWKONE · HEARTMATE TOUCH · HeartMate 3 Left Ventricular Dev · Hillrom - Carnation Ambulatory Monitor · ICDs · INJECTAFER · INVOKANA · Impella · Inpefa · JARDIANCE · JOT DX · KENGREAL · Kerendia · LEQVIO · LifeVest · MULTAQ · MYCARELINK · Medtronic External Pacemakers · Micra · Mitra Clip system · MyCareLink · NEXLETOL · NORTHERA · ONPATTRO · ONYX FRONTIER · OPSUMIT · OptiCross · PANTHERIS · PASCAL · PRADAXA · PRALUENT · PRALUENT ALIROCUMAB INJECTION · PRESSUREWIRE · Pacemakers · Peripheral Orbital Atherectomy System · Quadra Assura CRT Defibrillator · Quartet CRT Lead · RESOLUTE ONYX · ROTABLATOR · ROTAPRO · Repatha · Resolute · Reveal LINQ · SAPIEN 3 Ultra RESILIA · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · SYNERGY · Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · TELESCOPE · THORATEC HEARTMATE 3 LVAS IMPLANT KIT · UNIFY ASSURA · Unify Assura CRT Defibrillator · VERQUVO · VYNDAMAX · VYNDAQEL · Vascepa · Vascular Lithotripsy · VenaSeal · WATCHMAN · Wegovy · XARELTO · XIENCE SIERRA · Xience Sierra Coronary Stent System
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 →
The majority of payments (53%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in cardiovascular disease and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 7% for cardiovascular disease in CA.
Geographic Context
Cardiologists within 10 mi
7
Per 100K population
3.3
County median income
$68,574
Nearest hospital
ENLOE HEALTH
0.0 mi
0.0 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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Wolk is a clinical cardiology specialist, with above-average Medicare volume (top 7% in CA), with speaking/promotional industry engagement in the top 7% of CA peers, with 20 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. Wolk experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Wolk performed 4,045 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. Wolk receive payments from pharmaceutical companies?
Yes. Dr. Wolk received a total of $75,320 from 45 companies across 1,038 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. Wolk's costs compare to other cardiologists in Chico?
Dr. Wolk's average Medicare payment per service is $82. 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. Wolk) 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 →
Explore related providers
Same specialty & city
Cardiologists in Chico
Browse cardiologists in Chico ranked by procedure volume and transparency data.
Highest volume
Top Cardiologists in CA
Cardiologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Cardiologists in CA
Which CA cardiologists receive the most from drug and device companies.
By company
Janssen Pharmaceuticals, Inc Payments to Doctors
See all physicians who received payments from Janssen Pharmaceuticals, Inc.
By company
Medtronic Vascular, Inc. Payments to Doctors
See all physicians who received payments from Medtronic Vascular, Inc.
By company
Abbott Laboratories Payments to Doctors
See all physicians who received payments from Abbott Laboratories.
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. 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