2026 NPPES data General Practice Physician NPI 1649221870 MD
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Warren Gillette, MD

General Practice Physician in Dover, Delaware.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,677 in General Practice 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.
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Warren Gillette, MD is a General Practice Physician in Dover, Delaware, 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)

Warren Gillette, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 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 Warren Gillette, MD?

Quality data not reported

NPI registry status

Active

Issued 05/12/2006

NPI 1649221870

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Specialty distribution in Delaware

How General Practice Physician compares to other specialties among Delaware providers

Delaware providers
Registered Nurse - 5.9%Registered Nurse5.9%Physical Therapist - 5.3%Physical Therapist5.3%Pharmacist - 4.1%Pharmacist4.1%Student in an Organized Health Care Education/Training Program - 4%Student in an Organized Health Care Education/Training Program4%Clinical Social Worker - 4%Clinical Social Worker4%Mental Health Counselor - 3.7%Mental Health Counselor3.7%General Practice Physician - 0.2%General Practice Physician0.2%
Largest specialties in Delaware (% 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 General Practice 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).

Warren Gillette, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at 1253 COLLEGE PARK DR, Dover, DE, 19904, with a listed phone of (302) 677-0000. NPI 1649221870 was issued on 05/12/2006.

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 General Practice Physician providers operate outside Part D entirely.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

1253 COLLEGE PARK DR
Dover, DE 19904

Provider Details

NPI 1649221870
Specialty General Practice Physician
Credentials MD
Gender Male
NPI Issued 05/12/2006

Hospital and facility affiliations

Facilities where Warren Gillette, MD 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.

According to CMS billing records, Warren Gillette, MD is affiliated with 3 Medicare-billing facilities across 2 states.

Mario Gonzalez, MD
Newark, NJ
Pathlink OF New Jersey
Freehold, NJ
Princeton Pathology Services PLLC
Bristol, PA

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

General Practice Physician Overview

How Warren Gillette, MD fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

Nearby General Practice Physician Providers in Delaware

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

Compare General Practice 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 Delaware medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby General Practice 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.

Frequently Asked Questions

What is Warren Gillette, MD's specialty?
Warren Gillette, MD specializes in General Practice Physician and practices in Dover, Delaware. Credentials: MD.
Where is Warren Gillette, MD located?
Warren Gillette, MD is located at 1253 COLLEGE PARK DR, Dover, DE, 19904. Phone: (302) 677-0000.
What is Warren Gillette, MD's NPI number?
Warren Gillette, MD's National Provider Identifier (NPI) is 1649221870, issued on 05/12/2006.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
Does Warren Gillette, MD accept Medicare?
Warren Gillette, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Warren Gillette, MD's credentials?
Warren Gillette, MD's NPI is 1649221870 with credentials MD. 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 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.