Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mary E Bollinger, DO

Individual provider Pediatric Allergy/Immunology Physician · NPI 1629011127

Mary E Bollinger, DO is an Allergy/Immunology in Baltimore, Maryland. Graduated from Philadelphia College of Osteopathic Medicine in 1989, 37 years ago. Practices with University of Maryland Pediatric Associates, PA, a 55-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
37
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
MD
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

22 S Greene St
Baltimore, MD 21201-1544
Phone: (410) 328-6749
Fax: (410) 328-6136
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Allergy/Immunology Physician (primary) Taxonomy 2080P0201X · Licence H45009 (MD)

Record details

NPI number1629011127
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 13, 2006
Last updated in NPPESNovember 5, 2008
Mailing addressPo Box 62063, Baltimore, MD 21264-2063

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1989 (37 years in practice)
Group practice University Of Maryland Pediatric Associates, Pa — 55 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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