NPI registry status
Active
2026 NPPES data Vascular & Interventional Radiology Physician NPI 1538241765 MD
Verify on CMS → Winthrop Hall, MD
Vascular & Interventional Radiology 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 3,194 in Vascular & Interventional Radiology 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
Winthrop Hall, MD is a Vascular & Interventional Radiology Physician in Clackamas, Oregon, listed in the federal CMS National Provider Identifier registry.
- #152
- Vascular & Interventional Radiology 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 Winthrop Hall, MD
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1538241765), first enumerated 10/19/2006.
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
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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.
CMS NPPES provider registry desk
NPI 1538241765 · Vascular & Interventional Radiology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1538241765
- ENUM-LEGACY 2006
- TAX-NARROW 3,194
- RX-NONE No Part D
- BOOK-THIN 50 in Oregon
- PHOTO-ENUM Kamran Ahrar, M.D. · 2006
◑
Board-eligible specialty (heuristic, not verified)
Winthrop Hall, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Winthrop Hall, MD?
Quality data not reportedPrimary specialty
Vascular & Interventional Radiology Physician
Specialty distribution in Oregon
How Vascular & Interventional Radiology 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 Vascular & Interventional Radiology 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 | 1538241765 |
|---|---|
| Specialty | Vascular & Interventional Radiology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/19/2006 |
More Vascular & Interventional Radiology Physician in OR →
All providers in Oregon →
Compare specialties →
Vascular & Interventional Radiology Physician Overview
How Winthrop Hall, MD fits within the Vascular & Interventional Radiology Physician landscape nationally.
3,194
Vascular & Interventional Radiology Physician Providers in US
53
States with Vascular & Interventional Radiology Physician
88
Avg Claims per Provider
Nationwide Vascular & Interventional Radiology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Hall, both outside Oregon so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Vascular & Interventional Radiology Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Hall.
One of 50 Vascular & Interventional Radiology Physician providers enrolled in Oregon, 5 are shown here.
Dr. Ayah Abdelsalam Megahed
MD, MSC
Portland, OR
Dr. Scott Ambruster
M.D.
Salem, OR
Dr. Robert Barton
MD
Portland, OR
Christopher Baumann
Klamath Falls, OR
Dr. Brent Bose
MD
Medford, OR
Compare Vascular & Interventional Radiology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Winthrop Hall, MD's specialty? ▼
Winthrop Hall, MD specializes in Vascular & Interventional Radiology Physician and practices in Clackamas, Oregon. Credentials: MD.
Where is Winthrop Hall, MD located? ▼
Winthrop Hall, MD is located at 10180 SE SUNNYSIDE RD, Clackamas, OR, 97015. Phone: (503) 571-0000.
What is Winthrop Hall, MD's NPI number? ▼
Winthrop Hall, MD's National Provider Identifier (NPI) is 1538241765, issued on 10/19/2006.
How many Vascular & Interventional Radiology Physician providers are there in the US? ▼
There are 3,194 Vascular & Interventional Radiology Physician providers across 53 states in the US. The average Vascular & Interventional Radiology Physician provider writes 88 Medicare Part D claims per year.
Does Winthrop Hall, MD accept Medicare? ▼
Winthrop Hall, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Winthrop Hall, MD's credentials? ▼
Winthrop Hall, MD's NPI is 1538241765 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.
- 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.