Quick answers
- Does Patricia M. Sullivan accept Medicare assignment?
- Medicare's clinician data says Patricia M. Sullivan may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Patricia M. Sullivan see?
- In 2024, CMS data shows 137 Original Medicare patients and 635 services for Patricia M. Sullivan. This counts Original Medicare only and measures volume, not quality.
- What is Patricia M. Sullivan's NPI number?
- 1124117270. 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 Patricia M. Sullivan, 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 | 137 |
|---|---|
| Services billed to Medicare | 635 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)212 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)150 services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)140 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)104 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%
- Anxiety74%
- Depression70%
- High blood pressure64%
- Arthritis50%
- Osteoporosis26%
Practice locations
Addresses where Patricia M. Sullivan is enrolled with Medicare (CMS data updated October 2, 2026).
- 10808 Hickory Ridge RdColumbia, MD 21044 (410) 997‑1475
Specialties
- Psychiatryprimary
Other psychiatrists in Columbia
Clinicians with the same Medicare primary specialty in Columbia, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1124117270 |
| 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