Medicare Enrolled

Dr. Gharoon Panahi, MD

Rheumatology · Fountain Valley, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Low-engagement
11180 WARNER AVE #157, Fountain Valley, CA 92708
7148250891
In practice since 2006 (19 years)
NPI: 1912956053 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. Panahi 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. Panahi? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Panahi

Dr. Gharoon Panahi is a rheumatology specialist in Fountain Valley, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Panahi performed 26,795 Medicare services across 772 unique beneficiaries.

Between the years covered by Open Payments, Dr. Panahi received a total of $5,412 from 30 pharmaceutical and/or device companies across 328 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in rheumatology. 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. Panahi 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 15% volume in CA $5,412 industry payments

Medicare Practice Summary

Medicare Utilization ↗
26,795
Medicare services
Top 15% in CA for rheumatology
772
Unique beneficiaries
$12
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,410 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
Tocilizumab injection (Actemra) 22,480 $5 $10
Infliximab infusion (Remicade)
An injection of infliximab, excluding biosimilar versions, administered in a 10 mg dose.
2,210 $27 $107
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.
875 $97 $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.
218 $120 $330
Non-hormonal chemotherapy injection
This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue.
197 $62 $150
Methotrexate sodium, 50 mg 188 $2 $100
Joint injection, major joint
Removal of fluid from a large joint and/or injection of medication into the joint space.
173 $63 $200
Viscosupplementation injection for joint
An injection of hyaluronic acid or a derivative into a joint to provide lubrication and cushioning.
173 $56 $676
Steroid injection (triamcinolone)
A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered.
89 $1 $50
Additional hour of intravenous chemotherapy
This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period.
63 $25 $156
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.
35 $106 $300
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.
29 $11 $300
Intravenous drug injection
A procedure involving the administration of a medication or substance directly into a vein.
27 $33 $487
Quadrivalent influenza vaccine, cell-culture derived
A flu shot containing four strains of influenza virus, produced using cell culture technology rather than eggs. This formulation is free from preservatives and antibiotics.
19 $33 $100
Flu vaccine administration
This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient.
19 $33 $70
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.
9.1% high complexity
86.7% medium
4.2% routine

Industry Payment Transparency

Open Payments through 2024 ↗
$5,412
Total received (2018-2024)
Avg $773/year across 7 years
Top 38% in CA for rheumatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
30
Companies
328
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
$5,412 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$1,318
2023
$640
2022
$892
2021
$353
2020
$330
2019
$1,004
2018
$875

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Amgen Inc.
$290
Janssen Biotech, Inc.
$183
Mallinckrodt Hospital Products Inc.
$182
Radius Health, Inc.
$141
PFIZER INC.
$137
GlaxoSmithKline, LLC.
$131
Boehringer Ingelheim Pharmaceuticals, Inc.
$68
AstraZeneca Pharmaceuticals LP
$57
Alexion Pharmaceuticals, Inc.
$43
ANI Pharmaceuticals, Inc.
$31
UCB, Inc.
$29
Aurinia Pharma U.S., Inc.
$26
Top 3 companies account for 49.7% of 2024 payments
All-time payments by company (2018-2024) ›
Janssen Biotech, Inc.
$1,648
Amgen Inc.
$801
PFIZER INC.
$514
Mallinckrodt Hospital Products Inc.
$418
GlaxoSmithKline, LLC.
$310
Radius Health, Inc.
$291
Mallinckrodt LLC
$180
AstraZeneca Pharmaceuticals LP
$142
Lilly USA, LLC
$135
Horizon Therapeutics plc
$102
Aurinia Pharma U.S., Inc.
$93
UCB, Inc.
$84
Boehringer Ingelheim Pharmaceuticals, Inc.
$68
Scilex Pharmaceuticals Inc.
$65
Celgene Corporation
$59
Mallinckrodt Enterprises LLC
$56
FIDIA PHARMA USA INC.
$55
Cumberland Pharmaceuticals, Inc.
$52
Kaleo, Inc.
$46
Alexion Pharmaceuticals, Inc.
$43
Novartis Pharmaceuticals Corporation
$40
Allergan Inc.
$37
Horizon Pharma plc
$36
ANI Pharmaceuticals, Inc.
$31
Antares Pharma, Inc.
$25
Emergent BioSolutions Inc.
$23
Astute Medical, Inc.
$18
DePuy Synthes Sales Inc.
$15
Ultragenyx Pharmaceutical Inc.
$13
Genentech USA, Inc.
$12
Top 3 companies account for 54.7% of all-time payments
Associated products mentioned in payments ›
ACTHAR · Actemra · BENLYSTA · COSENTYX · CRYSVITA · Cimzia · EVENITY · EVZIO · Enbrel · Hymovis · KRYSTEXXA · LINZESS · LUPKYNIS · MONOVISC · Narcan · Nephrocheck · OCTAGAM IMMUNE GLOBULIN (HUMAN) · OFEV · Otezla · Otrexup · PANZYGA · PURIFIED CORTROPHIN GEL · Prolia · RAYOS · REDITREX · REMICADE · SAPHNELO · SIMPONI · SIMPONI ARIA · STELARA · STRENSIQ · TALTZ · TREMFYA · Tavneos · Tymlos · XELJANZ · ZTLido 30 POUCH in 1 CARTON 1 PATCH in 1 POUCH
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.

Looking for a rheumatology specialist in Fountain Valley?
Compare rheumatologists in the Fountain Valley area by procedure volume, costs, and industry payment transparency.
Browse rheumatologists nearby

Geographic Context

Rheumatologists within 10 mi
112
Per 100K population
3.5
County median income
$113,702
Nearest hospital
UCI HEALTH - FOUNTAIN VALLEY
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. Panahi is a mixed practice specialist, with above-average Medicare volume (top 15% in CA), with low-engagement industry engagement, 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. Panahi experienced with tocilizumab injection (actemra)?
Based on Medicare claims data, Dr. Panahi performed 22,480 tocilizumab injection (actemra) 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. Panahi receive payments from pharmaceutical companies?
Yes. Dr. Panahi received a total of $5,412 from 30 companies across 328 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. Panahi's costs compare to other rheumatologists in Fountain Valley?
Dr. Panahi's average Medicare payment per service is $12. 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. Panahi) 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. 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

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 →