Quick answers
- Does Tammy J. Leonard accept Medicare assignment?
- Yes. Medicare's clinician data says Tammy J. Leonard 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 Tammy J. Leonard see?
- In 2024, CMS data shows 41 Original Medicare patients and 82 services for Tammy J. Leonard. This counts Original Medicare only and measures volume, not quality.
- What is Tammy J. Leonard's NPI number?
- 1265542187. 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 Tammy J. Leonard, 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 | 41 |
|---|---|
| Services billed to Medicare | 82 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina (76830)37 services
- Complete ultrasound scan of pelvis (76856)31 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 pressure71%
- Arthritis49%
- Diabetes27%
- Ischemic heart disease27%
Practice locations
Addresses where Tammy J. Leonard is enrolled with Medicare (CMS data updated October 2, 2026).
- 1300 Hospital DrFredericksburg, VA 22401 (540) 656‑2830
Group practices
Medicare enrollment lists Tammy J. Leonard as a member of this group (CMS data updated October 2, 2026).
- Mary Washington Healthcare Physicians282 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Fredericksburg
Clinicians with the same Medicare primary specialty in Fredericksburg, VA — not a recommendation.
Other clinicians in Mary Washington Healthcare Physicians
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Virginia School Of Medicine |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265542187 |
| 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