NPPES file of Aug 9, 2026

Jennifer O'Neill Barr, MPH, RD, CDN, LDN

Registered Dietitian · Downingtown, PA

Jennifer O'Neill Barr, MPH, RD, CDN, LDN is a registered dietitian with a practice address in Downingtown, Pennsylvania, and NPI 1629248687, issued on Mar 6, 2008. Check the license (Pennsylvania DN003201, as entered in NPPES) with the Pennsylvania board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629248687
Name
Jennifer O'Neill Barr
Credential
MPH, RD, CDN, LDN
Primary taxonomy
Registered Dietitian 133V00000X
License number
DN003201 PA
Self-reported in NPPES; status is on the state search
Practice location
721 E Lancaster Ave, Downingtown, PA 19335
Phone
(484) 680-5366
Enumerated
Mar 6, 2008
Record last updated
May 17, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(484) 397-0310
Medicare enrollment
Enrolled (PECOS I20120307000389); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest registered dietitian records → All 3,083 in Pennsylvania → Look up another NPI →

Also registered at 721 E Lancaster Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Leslie Kubera, MA, RD, LDNRegistered Dietitian1003253279
  2. Judith Mahoney, LCSWClinical Social Worker1104752880
  3. Jeanne Michael, RDN LDNRegistered Dietitian1326698069

Verify Jennifer O'Neill Barr in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license DN003201    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Jennifer O'Neill Barr among 3,083 registered dietitian records in Pennsylvania

Jennifer O'Neill Barr, MPH, RD, CDN, LDN is one of 3,083 registered dietitian records with a practice address in Pennsylvania. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 12% of them.

  • NPI issued2008 · 12% of these records are older, 84% newer
  • In a Medicare fileNo · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2003 · median 2014 among the 315 with a school on file
  • Record last updated2017 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

16 registered dietitian records list a practice address in Downingtown

They are 16 of the 564 NPPES records with a practice address in Downingtown, and 3,083 registered dietitian records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3,083 in Pennsylvania → Every provider in Downingtown → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Robyn Beechuk, M.P.H, R.D., L.D.NDowningtown, PA 193351811312762
  2. Joanne Berardi, RD, CSP, CNSC, LDNDowningtown, PA 193351669539276
  3. Rachel Dodson, RDDowningtown, PA 193351841889979
  4. Leslie Kubera, MA, RD, LDNDowningtown, PA 193351003253279
  5. Sue LischukDowningtown, PA 193351669846945
  6. Schyler Melsky, RDN, LDNDowningtown, PA 193351710641287
  7. Jeanne Michael, RDN LDNDowningtown, PA 193351326698069
  8. Gina MoyerDowningtown, PA 193351073269338

Common questions

What is Jennifer O'Neill Barr, MPH, RD, CDN, LDN's NPI number?

Jennifer O'Neill Barr, MPH, RD, CDN, LDN's National Provider Identifier (NPI) is 1629248687, issued on Mar 6, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer O'Neill Barr, MPH, RD, CDN, LDN located?

The NPPES record lists a practice address at 721 E Lancaster Ave, Downingtown, PA, 19335. Phone: (484) 680-5366. Providers update this record themselves, so call before visiting.

How can I verify Jennifer O'Neill Barr, MPH, RD, CDN, LDN's license?

NPPES lists Pennsylvania license number DN003201, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.