Registry data as of Aug 27, 2026

Karen Guiou, FNP

Adult Health Nurse Practitioner · Richmond, ME

Karen Guiou, FNP is an adult health nurse practitioner with a practice address in Richmond, Maine, and NPI 1386732329, issued on Oct 11, 2006. Check the license (Maine AP081028, as entered in NPPES) with the Maine board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1386732329
Name
Karen Guiou
Credential
FNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License numbers
AP081028 ME
R021563 ME
Self-reported in NPPES; status is on the state search
Practice location
24 Gardiner St, Richmond, ME 04357
Phone
(207) 737-4359
Enumerated
Oct 11, 2006
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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Also registered at 24 Gardiner St

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

  1. Andrew Alexander, FNPFamily Nurse Practitioner1225793847
  2. Thomas Bartol, NPNurse Practitioner1841262417
  3. Rebecca Childs Derhak, FNPRegistered Nurse1588377386
  4. Monica Gambi Lado, NURSE PRACTITIONERFamily Nurse Practitioner1255065165
  5. Louise Gephart, LCSWCounselor1275860173
  6. Melissa Hackett, FNPFamily Nurse Practitioner1902170392

Verify Karen Guiou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maine board licenses this profession
    Search for license AP081028
    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 Maine 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.

1 adult health nurse practitioner records list a Richmond practice address

They are 1 of the 30 NPPES records with a Richmond practice address, and 132 adult health nurse practitioner records in Maine. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other adult health nurse practitioner records in Maine

  1. Clare Abercrombie, DNP- APRNDover Foxcroft, ME1740851799
  2. Sarah Adams, NPLewiston, ME1891933677
  3. Danielle Agrella, NPPresque Isle, ME1275283616
  4. Allison Ainsworth, NPFort Fairfield, ME1487710505
  5. Margaret Akers, ANPPortland, ME1245355015
  6. Natalie Alvarez, ANPWinterport, ME1255490256
  7. Susan Amundsen, MSN, RN, APRN, ANPBCBangor, ME1851521629
  8. Lisa Arsenault, ANPBiddeford, ME1366428435
  9. Diane Aubrey, ANPGray, ME1932155231
  10. Jason Aucoin, ANPScarborough, ME1316032824

Common questions

What is Karen Guiou, FNP's NPI number?

Karen Guiou, FNP's National Provider Identifier (NPI) is 1386732329, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karen Guiou, FNP located?

The NPPES record lists a practice address at 24 Gardiner St, Richmond, ME, 04357. Phone: (207) 737-4359. Providers update this record themselves, so call before visiting.

How can I verify Karen Guiou, FNP's license?

NPPES lists Maine license number AP081028, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.