2026 NPPES data Neuroradiology Physician NPI 1821027582 M.D., PHD., D.D.S
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PER-LENNART WESTESSON, M.D., PHD., D.D.S

Neuroradiology Physician in ROCHESTER, New York. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
20
Medicare Part D claims · Neuroradiology Physician avg: 125

What the federal data shows

PER-LENNART WESTESSON, M.D., PHD., D.D.S filed 20 Medicare Part D claims in 2023 as a Neuroradiology Physician in ROCHESTER, New York.

20
Part D claims, 2023

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.

PER-LENNART WESTESSON, M.D., PHD., D.D.S's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

20 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

PER-LENNART WESTESSON, M.D., PHD., D.D.S 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 PER-LENNART WESTESSON, M.D., PHD., D.D.S?

Quality data not reported

NPI registry status

Active

Issued 07/02/2006

NPI 1821027582

Primary specialty

Neuroradiology Physician

Niche

1,986 US NPIs in this specialty

Medicare Part D claims

20 84% vs specialty avg

2023 prescription claims

Specialty avg: 125

Specialty distribution in New York

How Neuroradiology Physician compares to other specialties among New York providers

New York providers

Neuroradiology Physician share within New York

1. Neuroradiology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neuroradiology Physician share within New York

Specialty board-certification context

Estimated specialty board-certified rate — Neuroradiology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neuroradiology Physician ABMS/AOA estimate

Est. board-certified rate (Neuroradiology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neuroradiology Physician) — ABMS / AOA estimate

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).

PER-LENNART WESTESSON, M.D., PHD., D.D.S appears in the CMS NPPES registry as a Neuroradiology Physician provider holding M.D., PHD., D.D.S credentials at 601 ELMWOOD AVE, ROCHESTER, NY, 14642, with a listed phone of (585) 275-1376. NPI 1821027582 was issued on 07/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WESTESSON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 20 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $821 in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Neuroradiology Physician is a narrow specialty nationwide, with 1,986 enrolled providers across 51 states and an average of 125 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

601 ELMWOOD AVE
ROCHESTER, NY 14642

Provider Details

NPI 1821027582
Specialty Neuroradiology Physician
Credentials M.D., PHD., D.D.S
Gender Male
NPI Issued 07/02/2006

License & disciplinary context — New York NYSBPMC 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 ~100K New York medical licensees in 2023 — they are NOT specific to PER-LENNART WESTESSON, M.D., PHD., D.D.S. To verify PER-LENNART WESTESSON, M.D., PHD., D.D.S's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York 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.

20
Total Claims
$821
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
60
Total Day Supply
1,800
Brand Drug Cost
$0
Generic Drug Cost
$821

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.41

Neuroradiology Physician Overview

How PER-LENNART WESTESSON, M.D., PHD., D.D.S fits within the Neuroradiology Physician landscape nationally.

1,986
Neuroradiology Physician Providers in US
51
States with Neuroradiology Physician
125
Avg Claims per Provider

PER-LENNART WESTESSON, M.D., PHD., D.D.S's 20 claims are below the specialty average of 125.

Nearby Neuroradiology Physician Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as WESTESSON.

Compare Neuroradiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is PER-LENNART WESTESSON, M.D., PHD., D.D.S's specialty?
PER-LENNART WESTESSON, M.D., PHD., D.D.S specializes in Neuroradiology Physician and practices in ROCHESTER, New York. Credentials: M.D., PHD., D.D.S.
How much does PER-LENNART WESTESSON, M.D., PHD., D.D.S prescribe under Medicare Part D?
In 2023, PER-LENNART WESTESSON, M.D., PHD., D.D.S wrote 20 Medicare Part D claims totaling $821 in drug costs for N/A beneficiaries.
Where is PER-LENNART WESTESSON, M.D., PHD., D.D.S located?
PER-LENNART WESTESSON, M.D., PHD., D.D.S is located at 601 ELMWOOD AVE, ROCHESTER, NY, 14642. Phone: (585) 275-1376.
What is PER-LENNART WESTESSON, M.D., PHD., D.D.S's NPI number?
PER-LENNART WESTESSON, M.D., PHD., D.D.S's National Provider Identifier (NPI) is 1821027582, issued on 07/02/2006.
How many Neuroradiology Physician providers are there in the US?
There are 1,986 Neuroradiology Physician providers across 51 states in the US. The average Neuroradiology Physician provider writes 125 Medicare Part D claims per year.
Does PER-LENNART WESTESSON, M.D., PHD., D.D.S accept Medicare?
PER-LENNART WESTESSON, M.D., PHD., D.D.S appears in CMS Medicare data with 20 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PER-LENNART WESTESSON, M.D., PHD., D.D.S's credentials?
PER-LENNART WESTESSON, M.D., PHD., D.D.S's NPI is 1821027582 with credentials M.D., PHD., D.D.S. 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

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.
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