Registry data as of Aug 27, 2026
2026 NPPES data Dermatology Physician NPI 1467438705
Verify on CMS →

Diana Hurwitz

Dermatology Physician in Greenwich, 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 15,011 in Dermatology 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

Diana Hurwitz is a Dermatology Physician in Greenwich, Connecticut, listed in the federal CMS National Provider Identifier registry.

Likely
board-certified (heuristic)
#58
Dermatology Physician rank among Connecticut 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 Diana Hurwitz

Federal registry listing with board-eligibility signals — verify credentials with the state medical board before clinical decisions.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1467438705), first enumerated 12/19/2005.

    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

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • 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.

Compare Hurwitz with other Dermatology Physician providers

Same primary specialty, same federal CMS NPPES roster.

Also enrolled in Connecticut

Other specialties in Greenwich: Clinical Social Worker (123) · Student in an Organized Health Care Education/Training Program (83) · Physical Therapist (55) · Internal Medicine Physician (55)

CMS NPPES provider registry desk

NPI 1467438705 · Dermatology Physician

NPI-10 · ENUM-LEGACY · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM

  • NPI-10 1467438705
  • ENUM-LEGACY 2005
  • TAX-MID 15K Dermatology Physician
  • RX-NONE No Part D
  • BOOK-THIN 241 in Connecticut
  • PHOTO-ENUM Tara Rumbarger, M.D. · 2005
✓
Board certification likely (heuristic, not verified)

Diana Hurwitz practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Diana Hurwitz?

Quality data not reported

NPI registry status

Active

Issued 12/19/2005

NPI 1467438705

Primary specialty

Dermatology Physician

Mid-sized

15,011 US NPIs in this specialty

Specialty distribution in Connecticut

How Dermatology Physician compares to other specialties among Connecticut providers

Connecticut providers
Clinical Social Worker8.4%Student in an Organized Heal…7.9%Physical Therapist4.2%Pharmacist3.9%Internal Medicine Physician3.4%Mental Health Counselor3.2%Dermatology Physician0.3%
Largest specialties in Connecticut (% of in-state 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 Dermatology 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

4 DEARFIELD DR
Greenwich, CT 06831

Provider Details

NPI 1467438705
Specialty Dermatology Physician
Gender Female
NPI Issued 12/19/2005

Hospital and facility affiliations

Facilities where Diana Hurwitz 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.

Hudson Dermatology, PC
Fishkill, NY

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

Dermatology Physician Overview

How Diana Hurwitz fits within the Dermatology Physician landscape nationally.

15,011
Dermatology Physician Providers in US
53
States with Dermatology Physician
799
Avg Claims per Provider

Nationwide Dermatology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Hurwitz, both outside Connecticut so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2005)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Dermatology Physician Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Hurwitz.

One of 241 Dermatology Physician providers enrolled in Connecticut, 11 are shown on this page.

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

Frequently Asked Questions

What is Diana Hurwitz's specialty? ▼
Diana Hurwitz specializes in Dermatology Physician and practices in Greenwich, Connecticut.
Where is Diana Hurwitz located? ▼
Diana Hurwitz is located at 4 DEARFIELD DR, Greenwich, CT, 06831. Phone: (212) 249-8884.
What is Diana Hurwitz's NPI number? ▼
Diana Hurwitz's National Provider Identifier (NPI) is 1467438705, issued on 12/19/2005.
How many Dermatology Physician providers are there in the US? ▼
There are 15,011 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 799 Medicare Part D claims per year.
Does Diana Hurwitz accept Medicare? ▼
Diana Hurwitz appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Diana Hurwitz's credentials? ▼
Diana Hurwitz's NPI is 1467438705. 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 September 2026.