NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1912956053 MD
Verify on CMS → Gharoon Panahi, MD
Rheumatology Physician in Fountain Valley, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,200 in Rheumatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 275 beneficiaries · Rheumatology Physician avg: 2K
MIPS score
21.5/100
▼ 62 pts below national avg 83.5 · Below average
Industry payments
$1.3K
74 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Gharoon Panahi, MD reported a CMS MIPS final score of 21.5/100 - below the 83.5 national average - and filed 2,750 Medicare Part D claims in 2023.
- 21.5/100
- MIPS score · -62 vs avg
- 3K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥3rd
- pct among measured MIPS (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1912956053 · Rheumatology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-LOW · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1912956053
- ENUM-LEGACY 2006
- TAX-MID 6K Rheumatology Physician
- MIPS-LOW 21.5/100
- RX-MID 2,750
- BOOK-LIGHT 708 in California
- PHOTO-FINISH Cara Hammonds · ±0.1
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Lisa Sumner · lo…
Lisa Sumner
20.7 MIPS pts
- Cara Hammonds · …
Cara Hammonds
21.4 MIPS pts
- Grace Skemp-Dymo…
Grace Skemp-Dymond
21.4 MIPS pts
- Panahi · this pr…
Panahi · this provider
21.5 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Gharoon Panahi, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
22 ≥ 3rd percentile 3% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Gharoon Panahi, MD sits
This provider among rheumatology physician peers
Across the 1,970 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Gharoon Panahi, MD writes more Part D claims than 70% of them and scores higher on MIPS quality than 3% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Gharoon Panahi, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Gharoon Panahi, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Gharoon Panahi, MD?
Below national averagePrimary specialty
Rheumatology Physician
Medicare Part D claims
2,750 34% vs specialty avg
MIPS final score
21.5/100 62 pts vs avg
Specialty distribution in California
How Rheumatology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Gharoon Panahi, MD's 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 21.5/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1912956053 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/08/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
21.5479
Final Score
Measured-score avg: 83.5
0
Quality
71.8262
Cost
Reporting: Individual
Hospital and facility affiliations
Facilities where Gharoon Panahi, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Gharoon Panahi MD Inc
Fountain Valley, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Gharoon Panahi, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.3K
Largest payer
Amgen Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Gharoon Panahi, MD. To verify Gharoon Panahi, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
2,750
Total Claims
$1.8M
Total Drug Cost
275
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,188
- Total Day Supply
- 182,263
- Generic Drug Cost
- $87K
- Opioid Claims
- 85 (3.1% rate)
- Antibiotic Claims
- 46
Patient Demographics
- Average Patient Age
- 77.2 years
- Avg HCC Risk Score
- 1.55
- Gender Split
- 72% female / 28% male
- Age Distribution
- <65: 21, 65-74: 88, 75-84: 92, 85+: 74
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gharoon Panahi, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
113 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
112 claims
- Actemra
Actemra
85 claims
- Amlodipine Besylate
Amlodipine Besylate
75 claims
- Levothyroxine Sodium
Levothyroxine Sodium
75 claims
- Omeprazole
Omeprazole
71 claims
- Metformin Hcl
Metformin Hcl
70 claims
- Duloxetine Hcl
Duloxetine Hcl
69 claims
| Drug | Claims |
|---|---|
| Gabapentin | 113 |
| Hydroxychloroquine Sulfate | 112 |
| Actemra Tocilizumab | 85 |
| Amlodipine Besylate | 75 |
| Levothyroxine Sodium | 75 |
| Omeprazole | 71 |
| Metformin Hcl | 70 |
| Duloxetine Hcl | 69 |
| Atorvastatin Calcium | 58 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 54 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Gharoon Panahi, MD fits within the Rheumatology Physician landscape nationally.
6,200
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Gharoon Panahi, MD's 2,750 claims are above the specialty average of 2,054.
Nationwide Rheumatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Panahi, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (21.5 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Panahi.
One of 708 Rheumatology Physician providers enrolled in California, 5 are shown here.
Dr. Thomas Abel
MD
Monte Sereno, CA
Dr. Thomas Adamson
M.D.
San Diego, CA
Dr. Sana Afroz
MD
Moreno Valley, CA
Dr. Atul Agrawal
MD
Antioch, CA
Dr. Bikramjit Ahluwalia
MD
Apple Valley, CA
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Gharoon Panahi, MD's specialty? ▼
Gharoon Panahi, MD specializes in Rheumatology Physician and practices in Fountain Valley, California. Credentials: MD.
How much does Gharoon Panahi, MD prescribe under Medicare Part D? ▼
In 2023, Gharoon Panahi, MD wrote 2,750 Medicare Part D claims totaling $1.8M in drug costs for 275 beneficiaries.
What is Gharoon Panahi, MD's Medicare quality score? ▼
Gharoon Panahi, MD has a CMS MIPS Final Score of 21.5/100 (Quality: 0, Cost: 71.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Gharoon Panahi, MD located? ▼
Gharoon Panahi, MD is located at 11180 WARNER AVE #157, Fountain Valley, CA, 92708. Phone: (714) 825-0891.
What is Gharoon Panahi, MD's NPI number? ▼
Gharoon Panahi, MD's National Provider Identifier (NPI) is 1912956053, issued on 05/08/2006.
Does Gharoon Panahi, MD prescribe opioids? ▼
Yes, Gharoon Panahi, MD had 85 opioid claims in 2023 with an opioid prescribing rate of 3.1%.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,200 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Gharoon Panahi, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Gharoon Panahi, MD's most frequently prescribed drugs include Gabapentin, Hydroxychloroquine Sulfate, Actemra. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gharoon Panahi, MD accept Medicare? ▼
Gharoon Panahi, MD appears in CMS Medicare data with 2,750 Part D claims and 275 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gharoon Panahi, MD's credentials? ▼
Gharoon Panahi, MD's NPI is 1912956053 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.