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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

BARBARA WISHART DERR R.D., L.D.
NPI 1285617811
Dietitian, Registered in Berlin, MD

Active since November 29, 2005
9733 HEALTHWAY DR, BERLIN, MD 21811(410) 641-9773 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Barbara Wishart Derr R.d., L.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BARBARA WISHART DERR R.D., L.D. (NPI 1285617811) is an individual dietitian, registered in Berlin, Maryland, licensed in Maryland (DX2456) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1285617811
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameBARBARA WISHART DERRCredential: R.D., L.D.
Location Address9733 HEALTHWAY DRBerlin, MD 21811-1155
Mailing Address140 Elizabeth WayBethany Beach, DE 19930-9167 · (302) 537-1309
Phone(410) 641-9773
Sole ProprietorNo
Enumeration DateNovember 29, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1285617811 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in MD · DX2456
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
9733 HEALTHWAY DR, Berlin, MD 21811
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TIDALHEALTH ATLANTIC, INC.
Pharmacy
9733 HEALTHWAY DR
BERLIN, MD 21811
Worcester County (410) 641-9727
JOHN A. GILLESPIE M.D.
Family Medicine
9733 HEALTHWAY DR
BERLIN, MD 21811
Worcester County (410) 641-9109
ATIF ZEESHAN MD
Internal Medicine (Pulmonary Disease)
9733 HEALTHWAY DR
BERLIN, MD 21811
Worcester County (410) 641-9646
TIDALHEALTH ATLANTIC, INC
General Acute Care Hospital
9733 HEALTHWAY DR
BERLIN, MD 21811
Worcester County (410) 641-1100
ATLANTIC GENERAL HOSPITAL CORPORATION
Internal Medicine
9733 HEALTHWAY DR
BERLIN, MD 21811
Worcester County (410) 641-1100
ANNAH JO BRITTINGHAM PHARMD
Pharmacist
9733 HEALTHWAY DR
BERLIN, MD 21811
Worcester County (410) 641-1100
TRACEY WOODEN
Nurse Practitioner (Family)
9733 HEALTHWAY DR
BERLIN, MD 21811
Worcester County (410) 629-6886
JENNIFER LEE GIORDANO
Speech-Language Pathologist
9733 HEALTHWAY DR
BERLIN, MD 21811
Worcester County (410) 641-1100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Barbara Derr's NPI number?

The NPI number for Barbara Derr is 1285617811. It was assigned to this individual provider in the NPPES registry on November 29, 2005.

Where is Barbara Derr located?

Barbara Derr practices at 9733 Healthway Dr, Berlin, MD 21811. The listed phone number is (410) 641-9773.

What is Barbara Derr's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

When was this NPI record last updated?

The NPPES record for Barbara Derr was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.