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 › Registered Dietitian

Barbara Derr, R.D., L.D

NPI 1285617811 · on the registry since 2005

Practice

Address
9733 Healthway Dr
Berlin, MD 21811
Phone
(410) 641-9773
Organisation at this address
Andrea Baier Md
Delmarva Radiology Pa
Tidalhealth Atlantic, Inc
Tidalhealth Atlantic, Inc
Atlantic General Hospital
Inferred from a shared address, not stated in the registry.
Clinicians at this address
30

Registry record

Primary taxonomy
Registered Dietitian
133V00000X
Licence states on file
MD
From the registry's licence fields, which are often incomplete.
Sex
Female
Record last updated
2026-07-13

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