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

Gregory S Montgomery, MD

Individual provider Pediatric Pulmonology Physician · NPI 1902915960

Gregory S Montgomery, MD is a Pulmonary Disease in Indianapolis, Indiana. Graduated from Indiana University School of Medicine in 1998, 28 years ago. Practices with Iu Health Medical Group Riley Specialists LLC, a 271-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
28
Trained at
Indiana University School of Medicine
Licensed in
IN
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

705 Riley Hospital Dr Roc 4270
Indianapolis, IN 46202-5109
Phone: (317) 274-7208
Fax: (317) 274-3442
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Pulmonology Physician (primary) Taxonomy 2080P0214X · Licence 01060650 (IN)

Record details

NPI number1902915960
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESFebruary 6, 2026
Certification dateFebruary 6, 2026
Mailing addressPo Box 719094, Chicago, IL 60677-9318

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesPEDIATRIC MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Iu Health Medical Group Riley Specialists Llc — 271 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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