NPPES file of Aug 9, 2026

Marissa Wertheimer, RD

Registered Dietitian · Nashville, TN

Marissa Wertheimer, RD is a registered dietitian with a practice address in Nashville, Tennessee, and NPI 1740813559, issued on Feb 20, 2020. Check the license (Tennessee LDN0000002957, as entered in NPPES) with the Tennessee 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
1740813559
Name
Marissa Wertheimer
Credential
RD
Primary taxonomy
Registered Dietitian 133V00000X
License number
LDN0000002957 TN
Self-reported in NPPES; status is on the state search
Practice location
4731 Centennial Blvd Apt 316, Nashville, TN 37209
Phone
(404) 606-2994
Enumerated
Feb 20, 2020
Record last updated
May 12, 2023
Medicare enrollment
Enrolled (PECOS I20250107003908); 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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Verify Marissa Wertheimer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license LDN0000002957
    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 Tennessee 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. Nourish, Inc.Austin, TX

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

Marissa Wertheimer among 1,266 registered dietitian records in Tennessee

Marissa Wertheimer, RD is one of 1,266 registered dietitian records with a practice address in Tennessee. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 52% of them.

  • NPI issued2020 · 52% of these records are older, 42% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 9% of these records are
  • Graduated2013 · median 2014 among the 117 with a school on file
  • Record last updated2023 · 50% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

284 registered dietitian records list a practice address in Nashville

They are 284 of the 24,357 NPPES records with a practice address in Nashville, and 1,266 registered dietitian records in Tennessee.

The 8 registered dietitian records with the nearest ZIP codes

  1. Leah Altfeld, MS, RD, LDN, CDENashville, TN 372091922230127
  2. Bailey CarrNashville, TN 372091477162485
  3. Breanna Cecil, RDNashville, TN 372091558934331
  4. McKenna DeckardNashville, TN 372091417567074
  5. Tanya Fischer, R.D.Nashville, TN 372091013243203
  6. Erika Gillins, MPH, MS, RDNashville, TN 372091821769043
  7. Xaymara Gonzalez Adams, MS, RD, LDNNashville, TN 372091003474206
  8. Deborah Kauffmann, R.D., L.D.N.Nashville, TN 372091265644660

Common questions

What is Marissa Wertheimer, RD's NPI number?

Marissa Wertheimer, RD's National Provider Identifier (NPI) is 1740813559, issued on Feb 20, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Wertheimer, RD located?

The NPPES record lists a practice address at 4731 Centennial Blvd Apt 316, Nashville, TN, 37209. Phone: (404) 606-2994. Providers update this record themselves, so call before visiting.

How can I verify Marissa Wertheimer, RD's license?

NPPES lists Tennessee license number LDN0000002957, as entered by the provider. Search the Tennessee 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.