NPPES file of Aug 9, 2026

Dianna Thomas, RD

Registered Dietitian · Warren, MI

Dianna Thomas, RD is a registered dietitian with a practice address in Warren, Michigan, and NPI 1811169584, issued on Apr 2, 2008. Check the license with the Michigan 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
1811169584
Name
Dianna Thomas
Credential
RD
Primary taxonomy
Registered Dietitian 133V00000X
Practice location
21230 Dequindre RD, Warren, MI 48091
Phone
(586) 880-2447
Enumerated
Apr 2, 2008
Record last updated
Apr 2, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(586) 427-4921
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 1,816 in Michigan → Look up another NPI →

Also registered at 21230 Dequindre RD

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

  1. Abdulmalik Alolofi, CAAAnesthesiologist Assistant1306634779
  2. Seyed Sadegh Arab, DPMFoot & Ankle Surgery Podiatrist1477074904
  3. Jenny Beauregard, CRNACertified Registered Nurse Anesthetist1720064934
  4. Zakhria Belasher, M.D.Hospitalist Physician1588059877
  5. Joshua Bennett, RDRegistered Dietitian1588180509
  6. Gregory Bitto, DPMFoot & Ankle Surgery Podiatrist1487037297

Verify Dianna Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this professionCheck 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 Michigan 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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Dianna Thomas among 1,816 registered dietitian records in Michigan

Dianna Thomas, RD is one of 1,816 registered dietitian records with a practice address in Michigan. 4% 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 2008, is newer than 19% of them.

  • NPI issued2008 · 19% of these records are older, 76% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 5% of these records are
  • Record last updated2008 · 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Dietitian providers in Michigan

There are 1,816 registered dietitian records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,816 in Michigan → Every provider in Warren → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Joshua Bennett, RDWarren, MI 480911588180509
  2. Sara SzatkowskiWarren, MI 480911437701240
  3. Grace Derocha, R.D., C.D.EWarren, MI 480921659567592
  4. Lana Scales, MS, RD, CNSCWarren, MI 480931023499613
  5. Connie Stefanski, RDWarren, MI 480931962660506
  6. Leah Blinstrub, R.D.Warren, MI 480881710158845
  7. Denise Marecki, R.D.Warren, MI 480881447495809
  8. Claire PatishallWarren, MI 480881841170230

Common questions

What is Dianna Thomas, RD's NPI number?

Dianna Thomas, RD's National Provider Identifier (NPI) is 1811169584, issued on Apr 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Dianna Thomas, RD located?

The NPPES record lists a practice address at 21230 Dequindre RD, Warren, MI, 48091. Phone: (586) 880-2447. Providers update this record themselves, so call before visiting.

How can I verify Dianna Thomas, RD's license?

Search the Michigan 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.