Quick answers
- Does William F. Winecoff Iii accept Medicare assignment?
- Yes. Medicare's clinician data says William F. Winecoff Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does William F. Winecoff Iii see?
- In 2024, CMS data shows 992 Original Medicare patients and 4,155 services for William F. Winecoff Iii. This counts Original Medicare only and measures volume, not quality.
- What is William F. Winecoff Iii's NPI number?
- 1295719433. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for William F. Winecoff Iii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 992 |
|---|---|
| Services billed to Medicare | 4,155 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)2,999 services
- Special stained specimen slides to examine tissue, initial procedure (88342)659 services
- Special stained specimen slides to examine tissue including interpretation and report (88313)248 services
- Special stained specimen slides to identify organisms including interpretation and report (88312)212 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)37 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure68%
- Arthritis47%
- Diabetes26%
- Anxiety23%
- Ischemic heart disease22%
Practice locations
Addresses where William F. Winecoff Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 820 Bestgate Rd, Suite 2aAnnapolis, MD 21401 (615) 770‑6600
- 85 Thomas Johnson Court, Suite BFrederick, MD 21702
- 85 Thomas Johnson Ct, Suite BFrederick, MD 21702 (301) 663‑9440
Group practices
Medicare enrollment lists William F. Winecoff Iii as a member of these groups (CMS data updated October 2, 2026).
- Anne Arundel Gastroenterology Associates, P.A.20 clinicians in the group
- Gastroenterology Specialists of Frederick, P.A.3 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Annapolis
Clinicians with the same Medicare primary specialty in Annapolis, MD — not a recommendation.
Other clinicians in Anne Arundel Gastroenterology Associates, P.A.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Georgia School Of Medicine |
| Graduation year | 1976 (50 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295719433 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians