Quick answers
- Where does Mary E. Bollinger see patients?
- Medicare's clinician data lists 3 practice locations, including Columbia, MD, Lutherville, MD and Baltimore, MD. Call before your visit to confirm the address.
- What is Mary E. Bollinger's specialty?
- Medicare lists Allergy/Immunology as the primary specialty.
- Does Mary E. Bollinger accept Medicare assignment?
- Yes. Medicare's clinician data says Mary E. Bollinger accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mary E. Bollinger?
- (410) 706-5181, as listed in official Medicare / NPI Registry data.
- What is Mary E. Bollinger's NPI number?
- 1629011127. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Mary E. Bollinger is enrolled with Medicare (CMS data updated 2026-10-02).
- 12500 Willowbrook RdColumbia, MD 21501 (410) 706‑5181
- 1302 Bellona AveLutherville, MD 21093 (667) 214‑2200
- 827 Linden AveBaltimore, MD 21201 (667) 214‑1916
Group practices
Medicare enrollment lists Mary E. Bollinger as a member of this group (CMS data updated 2026-10-02).
- University of Maryland Pediatric Associates, PA55 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Columbia
Clinicians with the same Medicare primary specialty in Columbia, MD — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629011127 |
| 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 2026-10-02, retrieved 2026-10-29
- 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