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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WILLIAM FRANKLIN WINECOFF III M.D.
NPI 1295719433
Pathology - Anatomic Pathology & Clinical Pathology in Washington, DC

Active since December 01, 2005PECOS EnrolledAccepts Medicare Assignment
94.47/100
CMS Quality Rating
6825 16TH ST NW, WASHINGTON, DC 20306(202) 782-2762(202) 782-3056 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William Franklin Winecoff Iii M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM FRANKLIN WINECOFF III M.D. (NPI 1295719433) is an individual anatomic pathology & clinical pathology provider in Washington, District Of Columbia, licensed in Georgia (18975) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of Medical College Of Georgia School Of Medicine (1976).

NPPES Registry Identity

NPI1295719433
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameDR. WILLIAM FRANKLIN WINECOFF IIICredential: M.D.
Location Address6825 16TH ST NWWashington, DC 20306-0003
Mailing Address14416 Ashleigh Greene RdBoyds, MD 20841-4377 · (301) 972-9463
Phone(202) 782-2762
Fax(202) 782-3056
Sole ProprietorNo
Medical School CMSMedical College Of Georgia School Of MedicineGraduated 1976
Enumeration DateDecember 1, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1295719433 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in GA · 18975
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
6825 16TH ST NW, Washington, DC 20306
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William Franklin Winecoff Iii M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5991994709
PECOS Enrollment IDI20110111000903
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
2,999 services992 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
659 services427 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
248 services194 patients
Special stained specimen slides to identify organisms including interpretation and report 88312
This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.
212 services161 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
37 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20306 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality100
Promoting Interoperability100
Improvement Activities40
Cost81.56

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ISABELL AM SESTERHENN M.D.
Pathology (Anatomic Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-2756
DR. VICTOR FRANK KALASINSKY PH.D.
Specialist/Technologist, Pathology (Chemistry)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-2835
DR. FRANCIS MICHAEL CHIRICOSTA MD
Pathology (Anatomic Pathology & Clinical Pathology)
6825 16TH ST NW, BUILDING 54, ROOM 1029
WASHINGTON, DC 20306
District of Columbia (202) 782-2260
DR. JACQUELINE ANN WIENEKE M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-2783
PETER MCEVOY
Pathology (Anatomic Pathology & Clinical Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-1827
DR. DANIEL GEORGE STRUM M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-2855
DR. DZUY TAN NGUYEN M.D.
Pathology (Forensic Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (301) 319-0000
DR. DOUGLAS JONATHAN WEAR M.D.
Specialist
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-1849

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Winecoff's NPI number?

The NPI number for William Winecoff is 1295719433. It was assigned to this individual provider in the NPPES registry on December 1, 2005.

Where is William Winecoff located?

William Winecoff practices at 6825 16th St NW, Washington, DC 20306. The listed phone number is (202) 782-2762.

What is William Winecoff's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is William Winecoff enrolled in Medicare?

Yes. William Winecoff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for William Winecoff was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.