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

Dr. John Patrick Mongan, DO

Individual provider Hematology & Oncology Physician · NPI 1134235765

Dr. John Patrick Mongan, DO is an Internal Medicine in Malta, New York. Graduated from Philadelphia College of Osteopathic Medicine in 2005, 21 years ago. Practices with Glens Falls Hospital Inc, a 173-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
21
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
NY
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

6 Medical Park Dr Ste 200
Malta, NY 12020-5051
Phone: (518) 289-2717
Fax: (518) 886-5247
Show map & directions

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

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 248746 (NY)

Record details

NPI number1134235765
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 23, 2006
Last updated in NPPESNovember 6, 2015
Mailing addressPo Box 1368, Albany, NY 12201-1368

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHEMATOLOGY/ONCOLOGY
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2005 (21 years in practice)
Group practice Glens Falls Hospital Inc — 173 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare