Medicare Enrolled
Dr. Yoon Pak, M.D.
Family Medicine · Cerritos, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
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. Pak 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 →
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What this data tells you about Dr. Pak
Dr. Yoon Pak is a family medicine specialist in Cerritos, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Pak performed 7,561 Medicare services across 2,691 unique beneficiaries.
Between the years covered by Open Payments, Dr. Pak received a total of $21,366 from 53 pharmaceutical and/or device companies across 1295 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine. 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. Pak 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 in practice
▲ Top 2% volume in CA
$21,366 industry payments
Medicare Practice Summary
Medicare Utilization ↗7,561
Medicare services
Top 2% in CA for family medicine
2,691
Unique beneficiaries
$37
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~398 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 (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
2,564 | $48 | $70 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
1,470 | $12 | $60 |
| 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. |
953 | $3 | $22 |
| Methylprednisolone injection, up to 40 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, administered in a dose of up to 40 mg. |
526 | $3 | $20 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
404 | $8 | $20 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
207 | $107 | $300 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
205 | $102 | $300 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
188 | $175 | $250 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
177 | $178 | $750 |
| Ketorolac injection, per 15 mg An injection of ketorolac tromethamine, a nonsteroidal anti-inflammatory drug, administered in doses measured per 15 mg. |
133 | $0 | $25 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
130 | $70 | $300 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
116 | $10 | $70 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
112 | $3 | $19 |
| Ceftriaxone antibiotic injection This code represents the administration of ceftriaxone sodium, an antibiotic medication. The charge is calculated for every 250 mg of the drug administered. |
73 | $0 | $100 |
| Transrectal ultrasound of the pelvis An ultrasound imaging procedure where a probe is inserted into the rectum to visualize pelvic structures. |
60 | $126 | $300 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
48 | $1 | $20 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
41 | $34 | $120 |
| Hemoglobin blood test A blood test that measures the amount of hemoglobin, the protein in red blood cells that carries oxygen. |
33 | $2 | $44 |
| Intravenous hydration infusion, 31-60 minutes Administration of fluids into a vein to maintain hydration. This procedure involves an infusion lasting between 31 and 60 minutes. |
31 | $27 | $140 |
| Inhalation treatment for acute airway obstruction, first hour This procedure involves administering inhaled medication to treat acute airway obstruction during the first hour of treatment. |
28 | $30 | $40 |
| 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. |
18 | $12 | $104 |
| Hepatitis B vaccine, dialysis or immunosuppressed patient dosage Administration of the hepatitis B vaccine using a dosage specifically formulated for patients undergoing dialysis or those who are immunosuppressed. |
16 | $147 | $200 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
14 | $31 | $180 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
14 | $1 | $20 |
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.
2.8% high complexity
41.1% medium
56.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$21,366
Total received (2018-2024)
Avg $3,052/year across 7 years
Top 1% in CA for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
53
Companies
1,295
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
$21,345 (99.9%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$21 (0.1%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,844
2023
$2,393
2022
$3,130
2021
$3,599
2020
$2,841
2019
$3,221
2018
$3,339
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Amgen Inc.
$453
AstraZeneca Pharmaceuticals LP
$451
Phathom Pharmaceuticals, Inc.
$347
ABBVIE INC.
$293
Novartis Pharmaceuticals Corporation
$264
Ardelyx, Inc.
$231
IBSA Pharma Inc.
$186
GlaxoSmithKline, LLC.
$100
Radius Health, Inc.
$95
Bayer Healthcare Pharmaceuticals Inc.
$86
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$73
AIMMUNE THERAPEUTICS, INC.
$66
Novo Nordisk Inc
$39
SCILEX PHARMACEUTICALS INC.
$35
Lilly USA, LLC
$23
VIVUS LLC
$21
Merck Sharp & Dohme LLC
$20
Gilead Sciences, Inc.
$18
PFIZER INC.
$17
Braintree Laboratories, Inc.
$14
Esperion Therapeutics, Inc.
$14
Top 3 companies account for 44.0% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$4,978
AstraZeneca Pharmaceuticals LP
$2,871
ABBVIE INC.
$1,266
Novo Nordisk Inc
$776
Radius Health, Inc.
$775
AbbVie Inc.
$757
GlaxoSmithKline, LLC.
$739
IBSA Pharma Inc.
$715
Regeneron Healthcare Solutions, Inc.
$694
Gilead Sciences, Inc.
$644
Novartis Pharmaceuticals Corporation
$535
Lilly USA, LLC
$526
Merck Sharp & Dohme Corporation
$522
RedHill Biopharma Inc.
$498
AbbVie, Inc.
$428
Nestle HealthCare Nutrition Inc.
$421
Takeda Pharmaceuticals U.S.A., Inc.
$386
Phathom Pharmaceuticals, Inc.
$371
SANOFI-AVENTIS U.S. LLC
$358
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$349
Amarin Pharma Inc.
$292
Boehringer Ingelheim Pharmaceuticals, Inc.
$274
Ardelyx, Inc.
$256
Allergan Inc.
$228
Bayer HealthCare Pharmaceuticals Inc.
$214
PFIZER INC.
$163
Bayer Healthcare Pharmaceuticals Inc.
$149
Allergan, Inc.
$142
Alvogen Inc
$133
VIVUS LLC
$120
Scilex Pharmaceuticals Inc.
$118
AIMMUNE THERAPEUTICS, INC.
$66
Esperion Therapeutics, Inc.
$61
ARBOR PHARMACEUTICALS, INC.
$56
NESTLE HEALTHCARE NUTRITION INC.
$47
Corium, LLC
$44
Sunovion Pharmaceuticals Inc.
$43
Horizon Therapeutics plc
$40
Merck Sharp & Dohme LLC
$38
Seqirus USA Inc
$36
SCILEX PHARMACEUTICALS INC.
$35
Regeneron Pharmaceuticals, Inc.
$26
Intercept Pharmaceuticals, Inc.
$22
Alfasigma USA, Inc.
$21
Ironwood Pharmaceuticals, Inc
$20
IRONWOOD PHARMACEUTICALS, INC
$19
SANOFI PASTEUR INC.
$16
FIDIA PHARMA USA INC.
$15
Sanofi Pasteur Inc.
$15
Braintree Laboratories, Inc.
$14
Teva Pharmaceuticals USA, Inc.
$13
Meridian Bioscience Inc.
$10
Canon Medical Systems USA, Inc.
$9
Top 3 companies account for 42.7% of all-time payments
Associated products mentioned in payments ›
ADLARITY · ADVAIR · AIRSUPRA · AJOVY · ANORO · AREXVY · Adlarity · Aemcolo · Aimovig · Amitiza · BELSOMRA · BREZTRI · BREZTRI AEROSPHERE · BRILINTA · BYSTOLIC · CREON · Creon · DUPIXENT · Dexilant · EMGALITY · ENTRESTO · EVENITY · EVKEEZA · Edarbi · FARXIGA · FLUZONE HIGH-DOSE · FORTEO · Fluad · GARDASIL · Hymovis · IBSRELA · JANUVIA · JARDIANCE · Kerendia · LEQVIO · LICART · LINZESS · LONHALA MAGNAIR · LYRICA · Licart · Linzess · MOUNJARO · Movantik · NEXLETOL · Otezla · Ozempic · PANCREAZE · PAXLOVID · PENNSAID · PRALUENT · PRALUENT ALIROCUMAB INJECTION · PREVNAR - 13 · PREVNAR 13 · Pancreaze · Prolia · Qsymia · RYBELSUS · Repatha · Rybelsus · SOLIQUA · STEGLATRO · STIOLTO · STIOLTO RESPIMAT · SUFLAVE · SYMBICORT · TERIPARATIDE · TEZSPIRE · TOVIAZ · TRADJENTA · TRELEGY ELLIPTA · TRULANCE · TRULICITY · Talicia · Tirosint · Trintellix · Tymlos · UBRELVY · VIBERZI · VOQUEZNA · Vascepa · Victoza · XIFAXAN · ZENPEP · ZTLido · ZTLido 30 POUCH in 1 CARTON 1 PATCH in 1 POUCH · Zelnorm
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 1% for family medicine in CA.
Geographic Context
Family medicine physicians within 10 mi
3,910
Per 100K population
39.7
County median income
$87,760
Nearest hospital
COLLEGE HOSPITAL
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. Pak is a clinical cardiology specialist, with above-average Medicare volume (top 2% in CA), with low-engagement industry engagement in the top 1% of CA peers, 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. Pak experienced with office visit, established patient (10-19 min)?
Based on Medicare claims data, Dr. Pak performed 2,564 office visit, established patient (10-19 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. Pak receive payments from pharmaceutical companies?
Yes. Dr. Pak received a total of $21,366 from 53 companies across 1,295 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. Pak's costs compare to other family medicine physicians in Cerritos?
Dr. Pak's average Medicare payment per service is $37. 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. Pak) 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 →
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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.
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