NPPES file of Aug 9, 2026

Mary Perry, RD

Registered Dietitian · Columbia, MD

Mary Perry, RD is a registered dietitian with a practice address in Columbia, Maryland, and NPI 1669832606, issued on Mar 3, 2016. Check the license (Maryland DX3956, as entered in NPPES) with the Maryland 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
1669832606
Name
Mary Perry
Credential
RD
Primary taxonomy
Registered Dietitian 133V00000X
License number
DX3956 MD
Self-reported in NPPES; status is on the state search
Practice location
6220 Old Dobbin LN Ste 200, Columbia, MD 21045
Phone
(410) 964-5308
Enumerated
Mar 3, 2016
Record last updated
Jun 22, 2026
Medicare enrollment
Enrolled (PECOS I20170330000433); accepts 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 1,124 in Maryland → Look up another NPI →

Also registered at 6220 Old Dobbin LN Ste 200

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

  1. Nounguim Calderon, MSN, APRN, FNP-CFamily Nurse Practitioner1497420129
  2. Rezvaneh Goodarzi, CRNPFamily Nurse Practitioner1316544315
  3. Oluwatomisin Olasimbo, PA-CMedical Physician Assistant1790507283
  4. Yewande Olasimbo, PA-CPhysician Assistant1265771109
  5. Divya Verma, M.D.Internal Medicine Physician1194800037
  6. Devorah WeinschneiderPediatric Nurse Practitioner1215709795

Verify Mary Perry in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license DX3956    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 Maryland 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. Bellor Leichtling Saway And Schneider PCColumbia, MD

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

Mary Perry among 1,124 registered dietitian records in Maryland

Mary Perry, RD is one of 1,124 registered dietitian records with a practice address in Maryland. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 44% of them.

  • NPI issued2016 · 44% of these records are older, 52% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 13% of these records are
  • Graduated2008 · median 2015 among the 143 with a school on file
  • Record last updated2026 · 62% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Dietitian providers in Maryland

There are 1,124 registered dietitian records in Maryland.

All 1,124 in Maryland → Every provider in Columbia → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Rachel Bailey, RDColumbia, MD 210451225818933
  2. Chimene Castor, RDN, LDN, CHESColumbia, MD 210451306382601
  3. Sollange Clement, RDNColumbia, MD 210451659870335
  4. Liz Del Hoyo, MS, RDNColumbia, MD 210451568994283
  5. Jody EngelColumbia, MD 210451528948783
  6. Ashley Fitzgerald, RDColumbia, MD 210451346857398
  7. Olivia LynchColumbia, MD 210451912582693
  8. Nicole Mason, RDColumbia, MD 210451992229868

Common questions

What is Mary Perry, RD's NPI number?

Mary Perry, RD's National Provider Identifier (NPI) is 1669832606, issued on Mar 3, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Mary Perry, RD located?

The NPPES record lists a practice address at 6220 Old Dobbin LN Ste 200, Columbia, MD, 21045. Phone: (410) 964-5308. Providers update this record themselves, so call before visiting.

How can I verify Mary Perry, RD's license?

NPPES lists Maryland license number DX3956, 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), 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.