Grant Callen, MD
NPI 1720660517 · Pediatrics Physician · Indianapolis, IN
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grant Callen, MD is a Pediatrics Physician provider in Indianapolis, IN (NPI 1720660517).
Provider details
- NPI number
- 1720660517
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 01093864A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-22
- Last updated
- 2024-06-05
- Certified
- 2024-06-05
Frequently asked questions
- What is Grant Callen's NPI number?
- Grant Callen's National Provider Identifier (NPI) is 1720660517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Callen's specialty?
- Grant Callen is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Grant Callen located?
- Grant Callen's practice location on file with NPPES is 705 Riley Hospital Dr, Indianapolis, IN 46202-5109.
- What is Grant Callen's phone number?
- The practice phone number listed in the NPPES registry for Grant Callen is (317) 948-2700.
- Does Grant Callen accept Medicare?
- Grant Callen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grant Callen's NPI active?
- Yes — Grant Callen's NPI (1720660517) is active in the NPPES registry as of the last update on 2024-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.