DANIEL KEVIN O'BRIEN NP
NPI 1629619002
Nurse Practitioner - Psychiatric/Mental Health in Portland, ME
About Daniel Kevin O'brien Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DANIEL KEVIN O'BRIEN NP (NPI 1629619002) is an individual psychiatric/mental health provider in Portland, Maine, licensed in Maine (CNP191205) and active in the NPI registry since October 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Daniel Kevin O'brien Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Daniel O'brien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Milwaukee, WI 53202
- Reassigned Medicare billing, Wisconsin enrollment
- 20 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Daniel O'brien's NPI number?
The NPI number for Daniel O'brien is 1629619002. It was assigned to this individual provider in the NPPES registry on October 7, 2019.
Where is Daniel O'brien located?
Daniel O'brien practices at 180 Park Ave, Portland, ME 04102. The listed phone number is (207) 874-2141.
What is Daniel O'brien's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Daniel O'brien enrolled in Medicare?
Yes. Daniel O'brien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Daniel O'brien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Daniel O'brien reassigns Medicare benefits to Psychiatric Consultants & Therapists, Sc (Milwaukee, WI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Daniel O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Daniel O'brien accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare) and Network Health list Daniel O'brien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Daniel O'brien was last updated on October 7, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Daniel Kevin O'brien, NP · NPI 1629619002
Psychiatric/Mental Health physician in Portland, Maine. Individual provider, active in the CMS NPPES registry since October 7, 2019.
## Identity
- **NPI:** 1629619002 (Entity type: Individual)
- **Enumerated:** October 7, 2019
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** CNP191205 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 180 PARK AVE, Portland, ME 04102-2957
- **Phone:** (207) 874-2141
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Psychiatric Consultants & Therapists, Sc (NPI 1700818119, Milwaukee, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** October 7, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1629619002) · Data from the CMS NPPES public registry.