NPPES file of Aug 9, 2026

Mary Castonguay, RN, IBCLC

Lactation Consultant (Registered Nurse) · Redford, MI

Mary Castonguay, RN, IBCLC is a lactation consultant (registered nurse) with a practice address in Redford, Michigan, and NPI 1083574255, issued on Nov 12, 2025. Check the license (Michigan 4704144289, as entered in NPPES) 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
1083574255
Name
Mary Castonguay
Credential
RN, IBCLC
Primary taxonomy
Lactation Consultant (Registered Nurse) 163WL0100X
License number
4704144289 MI
Self-reported in NPPES; status is on the state search
Practice location
14740 Seminole, Redford, MI 48239
Phone
(248) 920-4136
Enumerated
Nov 12, 2025
Record last updated
Nov 12, 2025
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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Verify Mary Castonguay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4704144289    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 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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Lactation Consultant (Registered Nurse) providers in Michigan

There are 80 lactation consultant (registered nurse) records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 80 in Michigan → Every provider in Redford →

Other lactation consultant (registered nurse) records in Michigan

  1. Joedy Annis, IBCLCInterlochen, MI1538992953
  2. Pamela Anzicek, RNClarkston, MI1548529472
  3. Sarah Benz, RNSaline, MI1497474712
  4. Elizabeth BoermanFremont, MI1881545747
  5. Justina Brenner, RN, IBCLCHaslett, MI1417318783
  6. Loui Brickey, RNGrand Blanc, MI1073866216
  7. Joliette BrockDaggett, MI1548195191
  8. Rebecca Campau, RN, IBCLCFort Gratiot, MI1679096374
  9. Heather Carnaghi, RN-IBCLCMilford, MI1124881859
  10. Maja Cerimagic, RN, IBCLCWest Bloomfield, MI1033604533

Common questions

What is Mary Castonguay, RN, IBCLC's NPI number?

Mary Castonguay, RN, IBCLC's National Provider Identifier (NPI) is 1083574255, issued on Nov 12, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Mary Castonguay, RN, IBCLC located?

The NPPES record lists a practice address at 14740 Seminole, Redford, MI, 48239. Phone: (248) 920-4136. Providers update this record themselves, so call before visiting.

How can I verify Mary Castonguay, RN, IBCLC's license?

NPPES lists Michigan license number 4704144289, as entered by the provider. 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.