Quick answers
- Does Maureen D. Shirtliff accept Medicare assignment?
- Yes. Medicare's clinician data says Maureen D. Shirtliff 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 Maureen D. Shirtliff see?
- In 2024, CMS data shows 17 Original Medicare patients and 37 services for Maureen D. Shirtliff. This counts Original Medicare only and measures volume, not quality.
- What is Maureen D. Shirtliff's NPI number?
- 1689901290. 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 Maureen D. Shirtliff, 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 | 17 |
|---|---|
| Services billed to Medicare | 37 |
| Different services or procedures | 3 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Insertion of artery tube for blood sampling or infusion through skin (36620)16 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%
- Chronic kidney disease65%
- Heart failure65%
Hospitals where Maureen D. Shirtliff works
Medicare's Facility Affiliation Data lists Maureen D. Shirtliff at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- MedStar Harbor HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 210034
- University of Maryland Medical CenterBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210002
Practice locations
Addresses where Maureen D. Shirtliff is enrolled with Medicare (CMS data updated October 2, 2026).
- 1406 Crain S Hwy 106Glen Burnie, MD 21061 (410) 768‑6440
- 22 S Green StBaltimore, MD 21201 (410) 328‑6704
- 3001 S Hanover StBaltimore, MD 21225
Group practices
Medicare enrollment lists Maureen D. Shirtliff as a member of these groups (CMS data updated October 2, 2026).
- MedStar Medical Group II LLC3,767 clinicians in the group
- Shock Trauma Associates PA261 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Glen Burnie
Clinicians with the same Medicare primary specialty in Glen Burnie, MD — not a recommendation.
Other clinicians in MedStar Medical Group II LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689901290 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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