Denise Janine Marquis, FNP
Psychiatric/Mental Health Nurse Practitioner · Houlton, ME
Denise Janine Marquis, FNP is a psychiatric/mental health nurse practitioner with a practice address in Houlton, Maine, and NPI 1770715427, issued on Aug 13, 2009. Check the license (Maine AP091040, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Denise Janine Marquis
- Credential
- FNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- AP091040 ME
Self-reported in NPPES; status is on the state search - Practice location
- 22 Hartford St Ste 4, Houlton, ME 04730
- Phone
- (207) 532-2900
- Enumerated
- Aug 13, 2009
- Record last updated
- Nov 5, 2025
- Fax
- (207) 532-7057
- Medicare enrollment
- Enrolled (PECOS I20091014000457); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 472 in Maine → Look up another NPI →
Verify Denise Janine Marquis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license AP091040Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
272 Medicare Part D claims for 84 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Buprenorphine-Naloxone114 claims
- Suboxone35 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital affiliation
- Houlton Regional HospitalHoulton, ME · Critical Access Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Denise Janine Marquis among 472 psychiatric/mental health nurse practitioner records in Maine
Denise Janine Marquis, FNP is one of 472 psychiatric/mental health nurse practitioner records with a practice address in Maine. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 25% of them.
- NPI issued2009 · 25% of these records are older, 73% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2009 · median 2019 among the 303 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 psychiatric/mental health nurse practitioner records list a practice address in Houlton
They are 4 of the 258 NPPES records with a practice address in Houlton, and 472 psychiatric/mental health nurse practitioner records in Maine.
All 472 in Maine → Every provider in Houlton → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Brownson Irondi, FNP-BC, PMHNP-BCHoulton, ME 047301801311527
- Shelly Miller, CRNPHoulton, ME 047301659763753
- Jamieson Romanelli, PMHNP/MSNHoulton, ME 047301154936912
- Shelly Murphy, PMH-NP, PMHCNS, BCCaribou, ME 047361205994431
- Sydney Ouellette, PMHNP-BCWoodland, ME 047361922960772
- Leane Saucier, FNP-BC, PMHNP-BCEaston, ME 047401275089013
- Megan Clark, PMHNP-BCFort Fairfield, ME 047421477316867
- Christie WolfFort Fairfield, ME 047421154761823
Common questions
What is Denise Janine Marquis, FNP's NPI number?
Denise Janine Marquis, FNP's National Provider Identifier (NPI) is 1770715427, issued on Aug 13, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Denise Janine Marquis, FNP located?
The NPPES record lists a practice address at 22 Hartford St Ste 4, Houlton, ME, 04730. Phone: (207) 532-2900. Providers update this record themselves, so call before visiting.
How can I verify Denise Janine Marquis, FNP's license?
NPPES lists Maine license number AP091040, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does Denise Janine Marquis, FNP prescribe under Medicare Part D?
In 2024, Denise Janine Marquis, FNP had 272 Medicare Part D claims for 84 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions 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.
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.