Barbara Derr, R.D., L.D.
Registered Dietitian · Berlin, MD
Barbara Derr, R.D., L.D. is a registered dietitian with a practice address in Berlin, Maryland, and NPI 1285617811, issued on Nov 29, 2005. Check the license (Maryland DX2456, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Barbara Derr
- Credential
- R.D., L.D.
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- DX2456 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9733 Healthway Dr, Berlin, MD 21811
- Phone
- (410) 641-9773
- Enumerated
- Nov 29, 2005
- Entity
- Type 1 · individual
Also registered at 9733 Healthway Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Andrews, M.D.Pulmonary Disease Physician1295786184
- Karan Bealla, PHARMD.Pharmacist1639502487
- Annah Brittingham, PHARMDPharmacist1083353403
- Stephen Chin, D.O.Anesthesiology Physician1700179413
- Gina Elsayed, PT, DPTPhysical Therapist1679366280
- Razaak Eniola, M.D.Emergency Medicine Physician1518902014
Verify Barbara Derr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license DX2456Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
11 registered dietitian records list a Berlin practice address
They are 11 of the 659 NPPES records with a Berlin practice address, and 1,090 registered dietitian records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 11 in Berlin → All 1,090 in Maryland → Every provider in Berlin →
Other registered dietitian records in Maryland
- Progya AakashTakoma Park, MD1356288765
- Nourhan AbdelfattahHanover, MD1154022283
- Nicole Acle, R.D.Salisbury, MD1447547153
- Deborah Adams, R.D., L.D.Baltimore, MD1013003821
- Jamie Adams, M.S., R.D., L.D.N.Baltimore, MD1891162277
- Aderonke Adegbite, RD,RDN,LDNNew Carrollton, MD1134054075
- Oluwakemi Adeola, MS, RD, LDWaldorf, MD1255961546
- Rabia Ahmad, RDSalisbury, MD1184171225
- Rahaf Al Bochi, RD, LDElkridge, MD1255874194
- Lilah Al-Masri, DIETITIANAnnapolis, MD1154393387
Common questions
What is Barbara Derr, R.D., L.D.'s NPI number?
Barbara Derr, R.D., L.D.'s National Provider Identifier (NPI) is 1285617811, issued on Nov 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Barbara Derr, R.D., L.D. located?
The NPPES record lists a practice address at 9733 Healthway Dr, Berlin, MD, 21811. Phone: (410) 641-9773. Providers update this record themselves, so call before visiting.
How can I verify Barbara Derr, R.D., L.D.'s license?
NPPES lists Maryland license number DX2456, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.