OrganizationActive
Robert S. Callahan, M.D., P.A.
NPI 1992841019 · Family Medicine Physician · Newark, DE
Provider details
- NPI number
- 1992841019
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Robert Callahan, Owner(302) 731-0942
- License
- C1-0008123 (DE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
665 Churchmans Rd
Newark, DE 19702-1918
Phone: (302) 731-0942
Fax: (302) 731-7100
Street-level locationGet directions
Mailing address
665 Churchmans Rd
Newark, DE 19702-1918
Registry dates
- Enumerated
- 2007-01-29
- Last updated
- 2007-10-29
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.