NPPES file of Aug 9, 2026

Christy Kay Mertz, RDN

Registered Dietitian · Saint Paul, MN

Christy Kay Mertz, RDN is a registered dietitian with a practice address in Saint Paul, Minnesota, and NPI 1518324870, issued on Jan 18, 2016. Check the license (Minnesota 918592, as entered in NPPES) with the Minnesota 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
1518324870
Name
Christy Kay Mertz
Credential
RDN
Primary taxonomy
Registered Dietitian 133V00000X
License number
918592 MN
Self-reported in NPPES; status is on the state search
Practice location
559 Capitol Blvd, Saint Paul, MN 55103
Phone
(651) 232-1960
Enumerated
Jan 18, 2016
Record last updated
Jan 18, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20251113001256); 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 1,590 in Minnesota → Look up another NPI →

Also registered at 559 Capitol Blvd

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

  1. Kayla ApplebyClinical Social Worker1215476437
  2. Deepak Bairagi, M.D.Internal Medicine Physician1386886398
  3. David Beck, MDInternal Medicine Physician1720010846
  4. Rhett Christensen, DNPPsychiatric/Mental Health Nurse Practitioner1558106781
  5. Katie Delahunt, R.D.N.Registered Dietitian1942671011
  6. Elizabeth Doll, PTPhysical Therapist1841445400

Verify Christy Kay Mertz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
    Search for license 918592    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 Minnesota 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. Park Nicollet ClinicShakopee, MN

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

Christy Kay Mertz among 1,590 registered dietitian records in Minnesota

Christy Kay Mertz, RDN is one of 1,590 registered dietitian records with a practice address in Minnesota. 14% 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 50% of them.

  • NPI issued2016 · 50% of these records are older, 46% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 15% of these records are
  • Graduated2001 · median 2011 among the 238 with a school on file
  • Record last updated2016 · 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

135 registered dietitian records list a practice address in Saint Paul

They are 135 of the 10,084 NPPES records with a practice address in Saint Paul, and 1,590 registered dietitian records in Minnesota.

All 1,590 in Minnesota → Every provider in Saint Paul → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Katie Delahunt, R.D.N.Saint Paul, MN 551031942671011
  2. Julianne Skillman, RDSaint Paul, MN 551031275580177
  3. Barbara StrobelSaint Paul, MN 551031992160964
  4. Angelia Ball, RDNSaint Paul, MN 551021558827709
  5. Sandra Blake, RD, LDSaint Paul, MN 551021184096729
  6. Shelly Brogni, R.D., L.D.Saint Paul, MN 551021497157499
  7. Jamie Carlson, R.D.Saint Paul, MN 551041679976849
  8. Nicole Eikenberry, MS, RDSaint Paul, MN 551021497305981

Common questions

What is Christy Kay Mertz, RDN's NPI number?

Christy Kay Mertz, RDN's National Provider Identifier (NPI) is 1518324870, issued on Jan 18, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Christy Kay Mertz, RDN located?

The NPPES record lists a practice address at 559 Capitol Blvd, Saint Paul, MN, 55103. Phone: (651) 232-1960. Providers update this record themselves, so call before visiting.

How can I verify Christy Kay Mertz, RDN's license?

NPPES lists Minnesota license number 918592, as entered by the provider. Search the Minnesota 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.