Quick answers
- Does Mary L. Spencer accept Medicare assignment?
- Yes. Medicare's clinician data says Mary L. Spencer 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 Mary L. Spencer see?
- In 2024, CMS data shows 170 Original Medicare patients and 6,562 services for Mary L. Spencer. This counts Original Medicare only and measures volume, not quality.
- What is Mary L. Spencer's NPI number?
- 1073966735. 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 Mary L. Spencer, 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 | 170 |
|---|---|
| Services billed to Medicare | 6,562 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month (99487)1,168 services
- Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month (99489)1,165 services
- Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)1,050 services
- Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)835 services
- Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)778 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 blood pressure75%
- High cholesterol75%
- Diabetes72%
- Arthritis70%
- Alzheimer's disease or dementia55%
- Anxiety48%
Practice locations
Addresses where Mary L. Spencer is enrolled with Medicare (CMS data updated October 2, 2026).
- 8061 Springfield RdGlenn Dale, MD 20769 (434) 390‑6641
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Glenn Dale
Clinicians with the same Medicare primary specialty in Glenn Dale, MD — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073966735 |
| 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