NPPES file of Aug 9, 2026

Mary E. Gardner, RD, LDN

Registered Dietitian · Naperville, IL

Mary E. Gardner, RD, LDN is a registered dietitian with a practice address in Naperville, Illinois, and NPI 1225540305, issued on Oct 30, 2017. Check the license (Illinois 896238, as entered in NPPES) with the Illinois 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
1225540305
Name
Mary E. Gardner
Credential
RD, LDN
Primary taxonomy
Registered Dietitian 133V00000X
License number
896238 IL
Self-reported in NPPES; status is on the state search
Practice location
801 S Washington St, Naperville, IL 60540
Phone
(630) 527-5059
Enumerated
Oct 30, 2017
Record last updated
Oct 30, 2017 (not updated in 9 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest registered dietitian records → All 2,870 in Illinois → Look up another NPI →

Also registered at 801 S Washington St

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

  1. Sean Adams, M.D.Anesthesiology Physician1598713661
  2. Saroosh Ahmed, MDEmergency Medicine Physician1639335078
  3. Faisal Akbari, M.DHospitalist Physician1740598705
  4. Catherine AlerNurse Practitioner1134584964
  5. Irfan Ali, DOHospitalist Physician1306427760
  6. Sivani Aluru, MDObstetrics & Gynecology Physician1275156325

Verify Mary E. Gardner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 896238    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 Illinois license search

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Mary E. Gardner among 2,870 registered dietitian records in Illinois

Mary E. Gardner, RD, LDN is one of 2,870 registered dietitian records with a practice address in Illinois. 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 2017, is newer than 47% of them.

  • NPI issued2017 · 47% of these records are older, 49% newer
  • In a Medicare fileNo · 8% of these records are
  • In the CMS Doctors and Clinicians fileNo · 9% of these records are
  • Record last updated2017 · 59% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

60 registered dietitian records list a practice address in Naperville

They are 60 of the 4,634 NPPES records with a practice address in Naperville, and 2,870 registered dietitian records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,870 in Illinois → Every provider in Naperville → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Doreen BerardNaperville, IL 605401083840573
  2. Cindy BohacNaperville, IL 605401033126115
  3. Lindsay Calvario, M.S., R.D.Naperville, IL 605401861844219
  4. Lisa Carroll, MS, RD, LDNNaperville, IL 605401417456955
  5. Christine Doshi, RD, LD, MS, CSOWMNaperville, IL 605401518447796
  6. Catherine Gavin, RD, LDN, MPHNaperville, IL 605401063425056
  7. Tonette HavalaNaperville, IL 605401487950309
  8. Carrie Mitchell, RD, LDNNaperville, IL 605401346477270

Common questions

What is Mary E. Gardner, RD, LDN's NPI number?

Mary E. Gardner, RD, LDN's National Provider Identifier (NPI) is 1225540305, issued on Oct 30, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Mary E. Gardner, RD, LDN located?

The NPPES record lists a practice address at 801 S Washington St, Naperville, IL, 60540. Phone: (630) 527-5059. Providers update this record themselves, so call before visiting.

How can I verify Mary E. Gardner, RD, LDN's license?

NPPES lists Illinois license number 896238, as entered by the provider. Search the Illinois 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.