NPPES file of Aug 9, 2026

Barbara L. Davidson, R.D.

Registered Dietitian · Chester Springs, PA

Barbara L. Davidson, R.D. is a registered dietitian with a practice address in Chester Springs, Pennsylvania, and NPI 1639561541, issued on Mar 2, 2015. Check the license (Pennsylvania DN005020, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1639561541
Name
Barbara L. Davidson
Credential
R.D.
Primary taxonomy
Registered Dietitian 133V00000X
License number
DN005020 PA
Self-reported in NPPES; status is on the state search
Practice location
2156 Ferncroft LN, Chester Springs, PA 19425
Phone
(484) 354-2902
Enumerated
Mar 2, 2015
Record last updated
Mar 2, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20240715000166); may accept Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Verify Barbara L. Davidson 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 DN005020
    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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Bills Medicare through one group practice

  1. Diamond Nutrition Counseling, Inc.Upper Chichester, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Barbara L. Davidson among 3,083 registered dietitian records in Pennsylvania

Barbara L. Davidson, R.D. 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. Its NPI, issued in 2015, is newer than 38% of them.

  • NPI issued2015 · 38% of these records are older, 58% newer
  • In a Medicare fileYes · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated1995 · median 2014 among the 315 with a school on file
  • Record last updated2015 · 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).

7 registered dietitian records list a practice address in Chester Springs

They are 7 of the 152 NPPES records with a practice address in Chester Springs, and 3,083 registered dietitian records in Pennsylvania.

The 8 registered dietitian records with the nearest ZIP codes

  1. Julie Alliger, RDChester Springs, PA 194251134369945
  2. Amy Corse, RDChester Springs, PA 194251164361473
  3. Caroline Harrington, MS, RDN, LDNChester Springs, PA 194251174366173
  4. Barbara Lohan, R.D.,L.D.N.Chester Springs, PA 194251992835714
  5. Ashvini Mashru, RD, LDNChester Springs, PA 194251770833667
  6. Connie Ostap, RD, LDNChester Springs, PA 194251639327265
  7. Michelle Donovan, MS, RD, LDNCollegeville, PA 194261538504147
  8. Kelly Morrison, R.D., C.S.G., L.D.N.Collegeville, PA 194261689803231

Common questions

What is Barbara L. Davidson, R.D.'s NPI number?

Barbara L. Davidson, R.D.'s National Provider Identifier (NPI) is 1639561541, issued on Mar 2, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Barbara L. Davidson, R.D. located?

The NPPES record lists a practice address at 2156 Ferncroft LN, Chester Springs, PA, 19425. Phone: (484) 354-2902. Providers update this record themselves, so call before visiting.

How can I verify Barbara L. Davidson, R.D.'s license?

NPPES lists Pennsylvania license number DN005020, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.