CATHERINE SIERRA STUART (PMHNP) – Psychiatric/Mental Health Nurse Practitioner, NPI 1396554481

CATHERINE SIERRA STUART (PMHNP) is a healthcare provider. based in Old orchard beach, Maine. specializing in NURSE PRACTITIONER. They hold the professional credentials PMHNP. They hold a License No. CNP241740 (ME). The NPI Number for CATHERINE SIERRA STUART (PMHNP) is 1396554481

Main info

Female
2 Years Of Experience
Accepts Medicare Assignment
Name
CATHERINE SIERRA STUART (PMHNP)
NPI
1396554481
Phone
(207) 937-8254
Address
155 SACO AVE STE 2A
Enumeration Date
2 January 2025
Last Update Date
2 January 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2076161127
Graduation Year
2024 (2 years ago)
PAC ID
4284148396
Group Practice PAC ID
0840729562
Professional Enrollment ID
I20250710000697
Address ID
ME041036005PO222XXSTXX302
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience26
Completeness75
Years active:1State licenses:1Digital endpointsOther names

1,869 NURSE PRACTITIONER in ME

Provider Addresses for CATHERINE SIERRA STUART (PMHNP)

  • 155 SACO AVE STE 2A

    OLD ORCHARD BEACH, ME 040641623

    Phone: (207) 937-8254

    Fax: (844) 824-7835

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2025-07-10

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20250710000697INurse PractitionerMETBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 04064)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0840729562View full group profile
NameSpecialtyState
Mental Health CounselorME
Mental Health CounselorFL
Mental Health CounselorFL
Clinical Social WorkerRI
Clinical Social WorkerRI
Nurse PractitionerME
Nurse PractitionerME
Clinical Social WorkerTX
Clinical Social WorkerRI
Clinical Social WorkerFL

Reviews

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Frequently asked questions

Can I use this page to confirm CATHERINE SIERRA STUART (PMHNP)'s NPI?
Yes. CATHERINE SIERRA STUART (PMHNP) is listed with NPI 1396554481 in the public NPI dataset.
Is CATHERINE SIERRA STUART (PMHNP) still practicing?
CATHERINE SIERRA STUART (PMHNP) is currently listed as active in the public NPI registry.
What healthcare role does CATHERINE SIERRA STUART (PMHNP) hold?
Scheduling teams often label CATHERINE SIERRA STUART (PMHNP) under Psychiatric/Mental Health Nurse Practitioner. Clinical services aligned with this taxonomy classification.
What area does CATHERINE SIERRA STUART (PMHNP) serve?
CATHERINE SIERRA STUART (PMHNP)'s listing highlights Old Orchard Beach, Maine; more addresses can appear in NPPES.
Is the information about CATHERINE SIERRA STUART (PMHNP) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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