Quick answers
- Does Cheryl L. Lonergan accept Medicare assignment?
- Yes. Medicare's clinician data says Cheryl L. Lonergan 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 Cheryl L. Lonergan see?
- In 2024, CMS data shows 2,801 Original Medicare patients and 10,917 services for Cheryl L. Lonergan. This counts Original Medicare only and measures volume, not quality.
- What is Cheryl L. Lonergan's NPI number?
- 1316169758. 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 Cheryl L. Lonergan, 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 | 2,801 |
|---|---|
| Services billed to Medicare | 10,917 |
| Different services or procedures | 58 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)3,319 services
- Destruction of precancer skin growth, 2-14 growths (17003)1,291 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)413 services
- Biopsy of related skin growth, first growth (11102)348 services
- Special stained specimen slides to examine tissue, initial procedure (88342)326 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 pressure72%
- Arthritis46%
- Diabetes24%
- Ischemic heart disease24%
- Anxiety20%
Practice locations
Addresses where Cheryl L. Lonergan is enrolled with Medicare (CMS data updated October 2, 2026).
- 419 W Redwood St, Suite 160Baltimore, MD 21201 (410) 238‑8025
- 5890 Waterloo RdColumbia, MD 21045 (667) 217‑1171
- 810 Landmark Dr, Suite 217 219Glen Burnie, MD 21061 (410) 766‑0111
Group practices
Medicare enrollment lists Cheryl L. Lonergan as a member of these groups (CMS data updated October 2, 2026).
- Anne Arundel Dermatology PA127 clinicians in the group
- University of Maryland Dermatologists PA17 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Other clinicians in Anne Arundel Dermatology PA
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 | 2003 (23 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316169758 |
| 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