2026 NPPES data Obesity Medicine (Internal Medicine) Physician NPI 1346401528 M.D.
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NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D.

Obesity Medicine (Internal Medicine) Physician in BARRON, Wisconsin. 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.

What the federal data shows

NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. is a Obesity Medicine (Internal Medicine) Physician in BARRON, Wisconsin, listed in the federal CMS National Provider Identifier registry.

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.

Board certification likely (heuristic — not verified)

NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/20/2008

NPI 1346401528

Primary specialty

Obesity Medicine (Internal Medicine) Physician

Rare

142 US NPIs in this specialty

Specialty distribution in Wisconsin

How Obesity Medicine (Internal Medicine) Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Obesity Medicine (Internal Medicine) Physician share within Wisconsin

1. Obesity Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obesity Medicine (Internal Medicine) Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Obesity Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obesity Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Obesity Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obesity Medicine (Internal Medicine) 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).

NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. appears in the CMS NPPES registry as a Obesity Medicine (Internal Medicine) Physician provider holding M.D. credentials at 1222 E WOODLAND AVE, BARRON, WI, 54812, with a listed phone of (715) 537-3166. NPI 1346401528 was issued on 06/20/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BOULGHASSOUL-PIETRZYKOWSKA 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Obesity Medicine (Internal Medicine) Physician providers operate outside Part D entirely.

Obesity Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 142 enrolled providers across 36 states and an average of 1,046 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

1222 E WOODLAND AVE
BARRON, WI 54812

Provider Details

NPI 1346401528
Specialty Obesity Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 06/20/2008

Hospital and facility affiliations

Facilities where NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. 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.

GUAM HEALTHCARE DEVELOPMENT INCORPORATED
DEDEDO, GU
U S HEALTH DEPT OF HEALTH AND HUMAN SERVICES
CROE AGENCY, MT

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Obesity Medicine (Internal Medicine) Physician Overview

How NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. fits within the Obesity Medicine (Internal Medicine) Physician landscape nationally.

142
Obesity Medicine (Internal Medicine) Physician Providers in US
36
States with Obesity Medicine (Internal Medicine) Physician
1,046
Avg Claims per Provider

Frequently Asked Questions

What is NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D.'s specialty?
NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. specializes in Obesity Medicine (Internal Medicine) Physician and practices in BARRON, Wisconsin. Credentials: M.D..
Where is NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. located?
NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. is located at 1222 E WOODLAND AVE, BARRON, WI, 54812. Phone: (715) 537-3166.
What is NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D.'s NPI number?
NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D.'s National Provider Identifier (NPI) is 1346401528, issued on 06/20/2008.
How many Obesity Medicine (Internal Medicine) Physician providers are there in the US?
There are 142 Obesity Medicine (Internal Medicine) Physician providers across 36 states in the US. The average Obesity Medicine (Internal Medicine) Physician provider writes 1,046 Medicare Part D claims per year.
Does NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. accept Medicare?
NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D.'s credentials?
NADIA BOULGHASSOUL-PIETRZYKOWSKA, M.D.'s NPI is 1346401528 with credentials M.D.. 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.
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