NPPES file of Aug 9, 2026

Colleen Gerg, RDN

Registered Dietitian · Bryn Mawr, PA

Colleen Gerg, RDN is a registered dietitian with a practice address in Bryn Mawr, Pennsylvania, and NPI 1437642238, issued on Jun 7, 2018. Check the license (Pennsylvania DN004713, 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
1437642238
Name
Colleen Gerg
Credential
RDN
Primary taxonomy
Registered Dietitian 133V00000X
License number
DN004713 PA
Self-reported in NPPES; status is on the state search
Practice location
800 Lafayette RD, Bryn Mawr, PA 19010
Phone
(202) 497-4202
Enumerated
Jun 7, 2018
Record last updated
Jan 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
103610679 PA
Medicare enrollment
Enrolled (PECOS I20180621000041); 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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8 nearest registered dietitian records → All 3,083 in Pennsylvania → Look up another NPI →

Verify Colleen Gerg 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 DN004713    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

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Bills Medicare through 2 group practices

  1. Diamond Nutrition Counseling, Inc.Upper Chichester, PA
  2. Simplex HealthAmbler, PA

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

Colleen Gerg among 3,083 registered dietitian records in Pennsylvania

Colleen Gerg, RDN 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 2018, is newer than 51% of them.

  • NPI issued2018 · 51% of these records are older, 43% 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 updated2020 · 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).

Registered Dietitian providers in Pennsylvania

There are 3,083 registered dietitian records in Pennsylvania.

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

The 8 registered dietitian records with the nearest ZIP codes

  1. Catherine Dorazio, MBA, RDNBryn Mawr, PA 190101750910592
  2. Julia Nagel, RDNBryn Mawr, PA 190101649125568
  3. Colette Pester-Phillips, RD, LDNBryn Mawr, PA 190101841218047
  4. Judith Rodkey-Matusky, R.D.Bryn Mawr, PA 190101528350899
  5. Kendall Stokes, RDN, LDN, SNSBryn Mawr, PA 190101659160695
  6. Stephanie SudjianBryn Mawr, PA 190101033667704
  7. Amanda Thomas, RD, LDNBryn Mawr, PA 190101043678089
  8. Judy Tripathi, RD, LDN, CDCESBryn Mawr, PA 190101528670957

Common questions

What is Colleen Gerg, RDN's NPI number?

Colleen Gerg, RDN's National Provider Identifier (NPI) is 1437642238, issued on Jun 7, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Colleen Gerg, RDN located?

The NPPES record lists a practice address at 800 Lafayette RD, Bryn Mawr, PA, 19010. Phone: (202) 497-4202. Providers update this record themselves, so call before visiting.

How can I verify Colleen Gerg, RDN's license?

NPPES lists Pennsylvania license number DN004713, 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.

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.