NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1831185966 MD
Verify on CMS → Peter Mohai, MD
Rheumatology Physician in Seattle, Washington.
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 · 206 beneficiaries · Rheumatology Physician avg: 2K
MIPS score
87.1/100
▲ 4 pts above national avg 83.1 · Above neutral
Industry payments
$2.0K
78 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Peter Mohai, MD reported a CMS MIPS final score of 87.1/100 - above the 83.1 national average - and filed 2,926 Medicare Part D claims in 2023.
- 87.1/100
- MIPS score · +4 vs avg
- 3K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Peter Mohai, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
87 Top 46% higher than 54% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Peter Mohai, MD sits
This provider among rheumatology physician peers
Across the 2,181 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Peter Mohai, MD writes more Part D claims than 71% of them and scores higher on MIPS quality than 57% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Peter Mohai, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Peter Mohai, 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 Peter Mohai, MD?
High performer (top quartile)Primary specialty
Rheumatology Physician
Medicare Part D claims
2,926 42% vs specialty avg
MIPS final score
87.1/100 4 pts vs avg
Specialty distribution in Washington
How Rheumatology Physician compares to other specialties among Washington providers
Medicare quality performance, MIPS
Peter Mohai, MD's 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 87.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Rheumatology Physician) - 87.1/100 vs national avg 83.1
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).
Peter Mohai, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 1229 MADISON ST STE 1450, Seattle, WA, 98104, with a listed phone of (206) 844-6001. NPI 1831185966 was issued on 09/23/2005.
Medicare Part D records for calendar year 2023 show 2,926 prescription claims written by this provider, covering 206 Medicare beneficiaries and totaling roughly $931K in drug spend, with an opioid prescribing rate of 8.2%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 87.1/100 for the 2023 performance year (Quality 77.4, Cost 62.9), compared with the national average of 83.1.
Rheumatology Physician is a mid-sized specialty nationwide, with 6,200 enrolled providers across 52 states and an average of 2,054 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1831185966 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/23/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
87.0923
Final Score
Avg: 83.1
77.4385
Quality
62.8691
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Peter Mohai, 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.
Seattle Rheumatology Associates PLLC
Seattle, WA
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 Peter Mohai, MD. Source: openpaymentsdata.cms.gov.
Total received
$2.0K
Largest payer
ABBVIE 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 - Washington WMC 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 ~34K Washington medical licensees in 2023 - they are NOT specific to Peter Mohai, MD. To verify Peter Mohai, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC 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 Washington 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.
2,926
Total Claims
$931K
Total Drug Cost
206
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,044
- Total Day Supply
- 145,982
- Generic Drug Cost
- $75K
- Opioid Claims
- 241 (8.2% rate)
- Antibiotic Claims
- 66
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.53
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 28, 65-74: 94, 75-84: 60, 85+: 24
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Peter Mohai, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
345 claims
- Methotrexate
Methotrexate
238 claims
- Hydroxychloroquine… 132
Hydroxychloroquine Sulfate
132 claims
- Gabapentin 92
Gabapentin
92 claims
- Omeprazole 86
Omeprazole
86 claims
- Hydrocodone-Acetam… 75
Hydrocodone-Acetaminophen
75 claims
- Tizanidine Hcl 67
Tizanidine Hcl
67 claims
- Tramadol Hcl 63
Tramadol Hcl
63 claims
| Drug | Claims |
|---|---|
| Prednisone | 345 |
| Methotrexate Methotrexate Sodium | 238 |
| Hydroxychloroquine Sulfate | 132 |
| Gabapentin | 92 |
| Omeprazole | 86 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 75 |
| Tizanidine Hcl | 67 |
| Tramadol Hcl | 63 |
| Levothyroxine Sodium | 59 |
| Methylprednisolone | 59 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Peter Mohai, 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
Peter Mohai, MD's 2,926 claims are above the specialty average of 2,054.
Nearby Rheumatology Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Mohai.
Dr. Jowairiyya Ahmad
M.D.
Lacey, WA
Dr. Hebatalla Allam
M.D.
Kennewick, WA
Dr. Brent Appleton
MD
Seattle, WA
Dr. Percy Balderia
MD
Seattle, WA
Dr. John Baldwin
MD
Bellevue, WA
Compare Rheumatology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Rheumatology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Peter Mohai, MD's specialty? ▼
Peter Mohai, MD specializes in Rheumatology Physician and practices in Seattle, Washington. Credentials: MD.
How much does Peter Mohai, MD prescribe under Medicare Part D? ▼
In 2023, Peter Mohai, MD wrote 2,926 Medicare Part D claims totaling $931K in drug costs for 206 beneficiaries.
What is Peter Mohai, MD's Medicare quality score? ▼
Peter Mohai, MD has a CMS MIPS Final Score of 87.1/100 (Quality: 77.4, Cost: 62.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Peter Mohai, MD located? ▼
Peter Mohai, MD is located at 1229 MADISON ST STE 1450, Seattle, WA, 98104. Phone: (206) 844-6001.
What is Peter Mohai, MD's NPI number? ▼
Peter Mohai, MD's National Provider Identifier (NPI) is 1831185966, issued on 09/23/2005.
Does Peter Mohai, MD prescribe opioids? ▼
Yes, Peter Mohai, MD had 241 opioid claims in 2023 with an opioid prescribing rate of 8.2%.
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 Peter Mohai, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Peter Mohai, MD's most frequently prescribed drugs include Prednisone, Methotrexate, Hydroxychloroquine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Peter Mohai, MD accept Medicare? ▼
Peter Mohai, MD appears in CMS Medicare data with 2,926 Part D claims and 206 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Peter Mohai, MD's credentials? ▼
Peter Mohai, MD's NPI is 1831185966 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
Compiled from official public sources by the PlainDoctor editorial team.
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.