NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1679542666 M.D.
Verify on CMS → Walter Cholewczynski, M.D.
Surgery Physician in Bridgeport, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 36,199 in Surgery 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
19
Medicare Part D claims · Surgery Physician avg: 169
MIPS score
93.3/100
▲ 10 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Walter Cholewczynski, M.D. reported a CMS MIPS final score of 93.3/100 - above the 83.1 national average - and filed 19 Medicare Part D claims in 2023.
- 93.3/100
- MIPS score · +10 vs avg
- 19
- 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.
Walter Cholewczynski, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
93 Top 29% higher than 71% 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 Walter Cholewczynski, M.D. sits
This provider among surgery physician peers
Across the 7,525 surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Walter Cholewczynski, M.D. writes more Part D claims than 9% of them and scores higher on MIPS quality than 70% - placing this provider in the lower-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 surgery physician peer from a representative sample of 60; the gold marker is Walter Cholewczynski, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Walter Cholewczynski, M.D. 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 Walter Cholewczynski, M.D.?
High performer (top quartile)Primary specialty
Surgery Physician
Medicare Part D claims
19 89% vs specialty avg
MIPS final score
93.3/100 10.2 pts vs avg
Specialty distribution in Connecticut
How Surgery Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Walter Cholewczynski, M.D.'s 2023 MIPS final score plotted against the Surgery Physician national average
- MIPS Final Score
- 93.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Surgery Physician) - 93.3/100 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).
Walter Cholewczynski, M.D. appears in the CMS NPPES registry as a Surgery Physician provider holding M.D. credentials at 226 MILL HILL AVE, Bridgeport, CT, 06610, with a listed phone of (203) 384-3873. NPI 1679542666 was issued on 03/14/2006.
Medicare Part D records for calendar year 2023 show 19 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $329 in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.3/100 for the 2023 performance year (Quality 81.7), compared with the national average of 83.1.
Surgery Physician is a mid-sized specialty nationwide, with 36,199 enrolled providers across 56 states and an average of 169 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 | 1679542666 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/14/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.2757
Final Score
Avg: 83.1
81.7219
Quality
78.0315
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Walter Cholewczynski, 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.
Northeast Medical Group Inc
Bridgeport, CT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
19
Total Claims
$329
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 27
- Total Day Supply
- 483
- Brand Drug Cost
- $0
- Generic Drug Cost
- $329
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 2.07
Surgery Physician Overview
How Walter Cholewczynski, M.D. fits within the Surgery Physician landscape nationally.
36,199
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider
Walter Cholewczynski, M.D.'s 19 claims are below the specialty average of 169.
Nearby Surgery Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Cholewczynski.
Dr. Joseph Aferzon
M.D.
Portland, CT
Dr. Sultan Ahamed
M.D.
Mystic, CT
Dr. Nita Ahuja
M.D.
New Haven, CT
Dr. Caterina Aiello
DO
Waterbury, CT
Dr. Elizabeth Aitcheson
M.D.
Hartford, CT
Compare Surgery 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Surgery 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 Walter Cholewczynski, M.D.'s specialty? ▼
Walter Cholewczynski, M.D. specializes in Surgery Physician and practices in Bridgeport, Connecticut. Credentials: M.D..
How much does Walter Cholewczynski, M.D. prescribe under Medicare Part D? ▼
In 2023, Walter Cholewczynski, M.D. wrote 19 Medicare Part D claims totaling $329 in drug costs for N/A beneficiaries.
What is Walter Cholewczynski, M.D.'s Medicare quality score? ▼
Walter Cholewczynski, M.D. has a CMS MIPS Final Score of 93.3/100 (Quality: 81.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Walter Cholewczynski, M.D. located? ▼
Walter Cholewczynski, M.D. is located at 226 MILL HILL AVE, Bridgeport, CT, 06610. Phone: (203) 384-3873.
What is Walter Cholewczynski, M.D.'s NPI number? ▼
Walter Cholewczynski, M.D.'s National Provider Identifier (NPI) is 1679542666, issued on 03/14/2006.
How many Surgery Physician providers are there in the US? ▼
There are 36,199 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
Does Walter Cholewczynski, M.D. accept Medicare? ▼
Walter Cholewczynski, M.D. appears in CMS Medicare data with 19 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 Walter Cholewczynski, M.D.'s credentials? ▼
Walter Cholewczynski, M.D.'s NPI is 1679542666 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
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.