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

Dr. Mary Ann Riley, DO

Individual provider Internal Medicine Physician · NPI 1174736441

Dr. Mary Ann Riley, DO is an Internal Medicine in Lavale, Maryland. Graduated from West Virginia School of Osteopathic Medicine in 2005, 21 years ago. Practices with UPMC Western Maryland Health Services LLC, a 167-clinician group, accepts Medicare assignment and offers telehealth. Licensed in West Virginia.

Years since qualifying
21
Trained at
West Virginia School of Osteopathic Medicine
Licensed in
WV
In the registry since
2007
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

1313 National Hwy
Lavale, MD 21502-7618
Phone: (240) 362-0288
Fax: (240) 362-0052
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2205 (WV)

Record details

NPI number1174736441
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 7, 2007
Last updated in NPPESJanuary 7, 2015
Mailing address1313 National Hwy, Lavale, MD 21502-7618

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolWEST VIRGINIA SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2005 (21 years in practice)
Group practice Upmc Western Maryland Health Services Llc — 167 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services