NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1508028952 DO
Verify on CMS → Anna Muchnik, DO
Rheumatology Physician in Clackamas, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,377 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.
What the federal data shows
Anna Muchnik, DO is a Rheumatology Physician in Clackamas, Oregon, listed in the federal CMS National Provider Identifier registry.
- Likely
- board-certified (heuristic)
- #123
- Rheumatology Physician rank among Oregon specialties
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.
Federal trust snapshot
What official records show about Anna Muchnik, DO
Federal registry listing with board-eligibility signals — verify credentials with the state medical board before clinical decisions.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1508028952), first enumerated 06/26/2008.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Muchnik with other Rheumatology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Oregon
- Dr. Alfredo Aguirre, M.D. Portland, OR
- Dr. Elizabeth Anderson, MD Portland, OR
- Dr. Kathryn Baker, DO Portland, OR
- Dr. Andre Barkhuizen, M.D. Portland, OR
- Dr. Jennifer Barton, M.D. Portland, OR
- Dr. Kent Blakely, MD Hermiston, OR
Other specialties in Clackamas: Pharmacist (146) · Internal Medicine Physician (108) · Emergency Medicine Physician (90) · Family Medicine Physician (81)
CMS NPPES provider registry desk
NPI 1508028952 · Rheumatology Physician
NPI-10 · ENUM-MID · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1508028952
- ENUM-MID 2008
- TAX-MID 6K Rheumatology Physician
- RX-NONE No Part D
- BOOK-THIN 81 in Oregon
- PHOTO-ENUM Eric Orlowsky, M.D. · 2008
✓
Board certification likely (heuristic, not verified)
Anna Muchnik, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Anna Muchnik, DO?
Quality data not reportedPrimary specialty
Rheumatology Physician
Specialty distribution in Oregon
How Rheumatology Physician compares to other specialties among Oregon providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Rheumatology Physician. Verify directly:
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 | 1508028952 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 06/26/2008 |
Hospital and facility affiliations
Facilities where Anna Muchnik, DO 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.
Kaiser Foundation Health Plan OF The Northwest
Clackamas, OR
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Rheumatology Physician Overview
How Anna Muchnik, DO fits within the Rheumatology Physician landscape nationally.
6,377
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,058
Avg Claims per Provider
Nationwide Rheumatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Muchnik, both outside Oregon so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Muchnik.
One of 81 Rheumatology Physician providers enrolled in Oregon, 11 are shown on this page.
Dr. Rosario Bonafede
MD
Portland, OR
Dr. Simona Braun
MD
Eugene, OR
Dr. Moshe Bressler
DO
Porland, OR
Dr. Stephen Campbell
MD
Portland, OR
Sarah Cassell
Eugene, OR
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Anna Muchnik, DO's specialty? ▼
Anna Muchnik, DO specializes in Rheumatology Physician and practices in Clackamas, Oregon. Credentials: DO.
Where is Anna Muchnik, DO located? ▼
Anna Muchnik, DO is located at 10180 SE SUNNYSIDE RD, Clackamas, OR, 97015. Phone: (800) 813-2000.
What is Anna Muchnik, DO's NPI number? ▼
Anna Muchnik, DO's National Provider Identifier (NPI) is 1508028952, issued on 06/26/2008.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,377 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,058 Medicare Part D claims per year.
Does Anna Muchnik, DO accept Medicare? ▼
Anna Muchnik, DO appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Anna Muchnik, DO's credentials? ▼
Anna Muchnik, DO's NPI is 1508028952 with credentials DO. 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.
- 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 August 2026 (NPPES) / 2024 (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 August 2026.