MS. ANN E. O'BRIEN (APNP) – Psychiatric/Mental Health Nurse Practitioner, NPI 1609908052

MS. ANN E. O'BRIEN (APNP) is a healthcare provider. based in Eastport, Maine. specializing in NURSE PRACTITIONER. They hold the professional credentials APNP. They hold a License No. 028484 (ME). The NPI Number for MS. ANN E. O'BRIEN (APNP) is 1609908052

Main info

Female
34 Years Of Experience
Accepts Medicare Assignment
Name
MS. ANN E. O'BRIEN (APNP)
NPI
1609908052
Phone
(207) 853-6001
Address
PO BOX H
Enumeration Date
12 March 2007
Last Update Date
15 September 2009

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2078536001141
Graduation Year
1992 (34 years ago)
PAC ID
8426081282
Group Practice PAC ID
3577592880
Professional Enrollment ID
I20091001000361
Address ID
ME046311306EA30XXXSTXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

1,869 NURSE PRACTITIONER in ME

Provider Addresses for MS. ANN E. O'BRIEN (APNP)

  • PO BOX H

    EASTPORT, ME 046310909

    Phone: (207) 853-6001

    Fax: (207) 853-4031

    Type: Mailing

  • 30 BOYNTON ST

    EASTPORT, ME 046311306

    Phone: (207) 853-6001

    Fax: (207) 853-4031

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 4 Open Payments records for all available years, with a total value of $108.

Total Amount is formed as General ($108) + Research ($0) + Ownership ($0) = $108.

Last reported payment date: 2023-11-16 • Largest payer in this snapshot: ABBVIE INC. ($80).

Total Amount

$108

General + Research + Ownership

Payments

4

Total payment records

General Amount

$108

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-11-16

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

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: 2009-10-01

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
I20091001000361INurse 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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
80305Testing for presence of drug, read by direct observation4615$0
View full utilization report →

Insurance plans in this area (ZIP 04631)

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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: 3577592880View full group profile
NameSpecialtyState
Clinical Social WorkerMD
Nurse PractitionerME
Clinical Social WorkerNC
Family PracticeME
Family PracticeNY
Nurse PractitionerIN
Physician AssistantME
Preventive MedicineME
Physician AssistantMT
-ME

Reviews

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Frequently asked questions

Is MS. ANN E. O'BRIEN (APNP) listed with a National Provider Identifier?
Yes — MS. ANN E. O'BRIEN (APNP) has NPI 1609908052 on file in the registry.
Would MS. ANN E. O'BRIEN (APNP) appear as active to a payer?
You can treat MS. ANN E. O'BRIEN (APNP) as active for directory purposes; confirm clinical privileges separately.
How would a patient describe MS. ANN E. O'BRIEN (APNP)'s focus?
For MS. ANN E. O'BRIEN (APNP), the primary taxonomy reads as Psychiatric/Mental Health Nurse Practitioner. Clinical services aligned with this taxonomy classification.
Is MS. ANN E. O'BRIEN (APNP) located near Eastport?
MS. ANN E. O'BRIEN (APNP) currently maps to Eastport, Maine in this extract.
What does 2 location(s) imply?
2 practice locations appear in the available data.

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