Ann E. O'Brien, APNP
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 1,423
- Industry payments
- $53
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 30 Boynton St, Eastport, ME 04631
- Practice phone
- Call (207) 853-6001
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rowland B. French Medical Center - EHC Eastport
FQHC - Main Site · Eastport, Maine
Find Ann O'Brien's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Ann E. O'Brien is a psychiatric/mental health nurse practitioner in Eastport, Maine
Ann O'Brien practices at Rowland B. French Medical Center - EHC Eastport in Eastport, Maine.
Ann O'Brien's NPI, 1609908052, was assigned on March 12, 2007. Ann O'Brien holds Maine license 028484.
- NPI
- 1609908052NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426081282
- NPI enumeration date
- March 12, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (207) 853-6001
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ann E. O'Brien practices at Rowland B. French Medical Center - EHC Eastport in Eastport, Maine
Ann O'Brien's primary practice is Rowland B. French Medical Center - EHC Eastport, at 30 Boynton St, Eastport, ME 04631 in Washington County. The practice phone is (207) 853-6001.
- Rowland B. French Medical Center - EHC Eastport30 Boynton St, Eastport, ME 04631 · Washington CountyPhone(207) 853-6001
Source: Dmand AI Affiliation Data
Ann E. O'Brien is affiliated with 2 sites of care and 1 medical group
Ann O'Brien's primary practice is Rowland B. French Medical Center - EHC Eastport in Eastport, Maine. The medical group on file is Eastport Health Care, Inc. Dmand AI also links Ann O'Brien to 1 more behavioral health center, named with a free account. Ann O'Brien's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ann E. O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ann O'Brien practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rowland B. French Medical Center - EHC Eastport | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Ann E. O'Brien is one of 369 psychiatric/mental health nurse practitioners in Maine
Psychiatric/mental health is Ann O'Brien's primary specialty in the NPI Registry, under taxonomy code 363LP0808X. Ann O'Brien is licensed in Maine.
Specialties and state licenses
- Psychiatric/mental health nurse practitioner, MainePrimary
Psychiatric/mental health nurse practitioners near Ann O'Brien
Counts of psychiatric/mental health nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Ann E. O'Brien treated 17 Medicare patients in 2024, average age 59
CMS counts 17 Medicare patients who saw Ann O'Brien in 2024. The largest group is 85 and over, with 0 patients. 75% of them have anxiety, and 71% have high cholesterol. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Ann O'Brien's median patient age at 56, with 51% women.
Ann O'Brien's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Ann O'Brien's Medicare patients, 2024
- Anxiety75%
- High cholesterol71%
- Mood disorders65%
Share of Medicare patients with each condition. A patient can have several.
Ann O'Brien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ann E. O'Brien wrote 1,423 Medicare Part D claims in 2024
In 2024, Ann O'Brien wrote 1,423 Medicare Part D claims for 52 patients. 92% of them were for generic drugs.
Ann O'Brien's Part D claims by kind of drug, 2024
- Generic1,313 claims92%
- Brand-name110 claims8%
Drug classes CMS tracks in Ann O'Brien's Part D claims, 2024
- Antipsychotics, patients 65 and over7%93 of 1,423 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Ann E. O'Brien takes part in Medicare
Ann O'Brien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Ann E. O'Brien received $53 in industry payments in 2025
CMS Open Payments shows 2 general payments to Ann O'Brien from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $53.
Companies that paid Ann O'Brien the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Ann E. O'Brien's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Ann E. O'Brien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ann E. O'Brien's NPI number?
Ann E. O'Brien's NPI number is 1609908052. It was assigned on March 12, 2007, and it is active in the NPI Registry.
What does Ann E. O'Brien specialize in?
Ann E. O'Brien is a psychiatric/mental health nurse practitioner in Eastport, Maine. The primary specialty in the NPI Registry is Psychiatric/Mental Health Nurse Practitioner (taxonomy code 363LP0808X).
Where does Ann E. O'Brien practice?
Ann O'Brien practices at 30 Boynton St, Eastport, ME 04631. Ann O'Brien's primary practice is Rowland B. French Medical Center - EHC Eastport in Eastport, Maine. Dmand AI also links Ann O'Brien to 1 behavioral health center.
What is Ann E. O'Brien's office phone number?
The practice phone on file for Ann O'Brien is (207) 853-6001.
What is Ann E. O'Brien's medical license number?
Ann O'Brien holds Maine license 028484.
What medical group is Ann E. O'Brien part of?
Ann O'Brien is linked to Eastport Health Care, Inc.
Does Ann E. O'Brien accept Medicare?
Yes. CMS lists Ann O'Brien as accepting Medicare assignment.
How many Medicare patients does Ann E. O'Brien see?
CMS counts 17 Medicare patients who saw Ann O'Brien in 2024, with an average age of 59.
Has Ann E. O'Brien received payments from drug or device companies?
CMS Open Payments shows $53 in general payments to Ann O'Brien from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Ann E. O'Brien been practicing?
Ann O'Brien graduated from medical school in 1992, 34 years ago.
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