NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1427258078
Verify on CMS → Frederick Wilson
Hematology (Internal Medicine) Physician in New Haven, 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 1,451 in Hematology (Internal Medicine) 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
80
Medicare Part D claims · 21 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.6/100
▼ 10 pts below national avg 83.1 · Mid-tier
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
Frederick Wilson reported a CMS MIPS final score of 73.6/100 - below the 83.1 national average - and filed 80 Medicare Part D claims in 2023.
- 73.6/100
- MIPS score · -10 vs avg
- 80
- Part D claims, 2023
- 69%
- generic prescribing
- 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.
Frederick Wilson's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
74 11th percentile higher than 11% 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 Frederick Wilson sits
This provider among hematology (internal medicine) physician peers
Across the 570 hematology (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Frederick Wilson writes more Part D claims than 11% of them and scores higher on MIPS quality than 3% - placing this provider in the lower-volume, lower-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 hematology (internal medicine) physician peer from a representative sample of 60; the gold marker is Frederick Wilson. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Frederick Wilson 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 Frederick Wilson?
Below national averagePrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
80 88% vs specialty avg
MIPS final score
73.6/100 9.5 pts vs avg
Specialty distribution in Connecticut
How Hematology (Internal Medicine) Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Frederick Wilson's 2023 MIPS final score plotted against the Hematology (Internal Medicine) Physician national average
- MIPS Final Score
- 73.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology (Internal Medicine) Physician) - 73.6/100 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).
Frederick Wilson appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider at 20 YORK ST # NP4, New Haven, CT, 06510, with a listed phone of (203) 200-5864. NPI 1427258078 was issued on 07/23/2007.
Medicare Part D records for calendar year 2023 show 80 prescription claims written by this provider, covering 21 Medicare beneficiaries and totaling roughly $204K in drug spend, split 31% brand-name and 69% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 73.6/100 for the 2023 performance year (Quality 75.8, Cost 51.4), compared with the national average of 83.1.
Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,451 enrolled providers across 50 states and an average of 693 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 | 1427258078 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Gender | Male |
| NPI Issued | 07/23/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.5637
Final Score
Avg: 83.1
75.8435
Quality
51.4318
Cost
74
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Frederick Wilson 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.
Yale University
New Haven, 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).
Brand vs generic prescribing mix · Above average
Frederick Wilson - brand share 31.0%
Hematology (Internal Medicine) Physician average
31% brand-name claims vs 69% generic, on 80 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
80
Total Claims
$204K
Total Drug Cost
21
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 102
- Total Day Supply
- 2,310
- Brand vs Generic
- 31% brand / 69% generic
- Brand Drug Cost
- $203K
- Generic Drug Cost
- $659
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 3.31
More Hematology (Internal Medicine) Physician in CT →
All providers in Connecticut →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Frederick Wilson fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,451
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider
Frederick Wilson's 80 claims are below the specialty average of 693.
Nearby Hematology (Internal Medicine) Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Wilson.
Dr. Erkut Bahceci
MD
New Haven, CT
Dr. Michael Bar
MD
Stamford, CT
Dr. Aarti Bhatia
M.B.B.S.
New Haven, CT
Dr. Syed Bilgrami
MD
Hartford, CT
Dr. Michael Burke
MD
Hartford, CT
Compare Hematology (Internal Medicine) 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 Hematology (Internal Medicine) 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Connecticut
Frequently Asked Questions
What is Frederick Wilson's specialty? ▼
Frederick Wilson specializes in Hematology (Internal Medicine) Physician and practices in New Haven, Connecticut.
How much does Frederick Wilson prescribe under Medicare Part D? ▼
In 2023, Frederick Wilson wrote 80 Medicare Part D claims totaling $204K in drug costs for 21 beneficiaries.
What is Frederick Wilson's Medicare quality score? ▼
Frederick Wilson has a CMS MIPS Final Score of 73.6/100 (Quality: 75.8, Cost: 51.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Frederick Wilson located? ▼
Frederick Wilson is located at 20 YORK ST # NP4, New Haven, CT, 06510. Phone: (203) 200-5864.
What is Frederick Wilson's NPI number? ▼
Frederick Wilson's National Provider Identifier (NPI) is 1427258078, issued on 07/23/2007.
Does Frederick Wilson prescribe more brand-name or generic drugs? ▼
Frederick Wilson's prescribing is 31% brand-name and 69% generic drugs by claim count, with $203K in brand drug costs.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,451 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
Does Frederick Wilson accept Medicare? ▼
Frederick Wilson appears in CMS Medicare data with 80 Part D claims and 21 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Frederick Wilson's credentials? ▼
Frederick Wilson's NPI is 1427258078. 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.