npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › Maryland › 1710I1002X

Derek Calloway, IDC

NPI 1760119887 · on the registry since 2022

Practice

Address
8901 Rockville Pike
Bethesda, MD 20889
Phone
(301) 295-4000
Organisation at this address
John Keeling
United States Army
Johns Hopkins University
National Naval Medical Center
National Naval Medical Center
Inferred from a shared address, not stated in the registry.
Clinicians at this address
893

Registry record

Primary taxonomy
1710I1002X
1710I1002X
Sex
Male
Record last updated
2026-04-23

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Maryland