JOHN PAUL O'BRIEN D.O.
NPI 1417480351
Family Medicine in East Boston, MA
About John Paul O'brien D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN PAUL O'BRIEN D.O. (NPI 1417480351) is an individual family medicine provider in East Boston, Massachusetts, licensed in Massachusetts (289475) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and is a graduate of West Virginia School Of Osteopathic Medicine (2016).
NPPES Registry Identity
Specialties & Licenses
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
John Paul O'brien D.o. 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 Reassignments
3Medicare enrollment records show John O'brien reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
East Boston, MA 02128
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: East Boston Neighborhood Health Center Corp
- 456 clinicians in this Medicare group
East Boston, MA 02128
- Reassigned Medicare billing, Massachusetts enrollment
- 577 clinicians in this Medicare group
Dorchester, MA 02125
- Reassigned Medicare billing, Massachusetts enrollment
- 31 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Boston Medical Center
Acute Care Hospitals · Boston, MASt Joseph's Hospital Health Center
Acute Care Hospitals · Syracuse, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02128 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 John O'brien's NPI number?
The NPI number for John O'brien is 1417480351. It was assigned to this individual provider in the NPPES registry on April 7, 2017.
Where is John O'brien located?
John O'brien practices at 10 Gove St, East Boston, MA 02128. The listed phone number is (617) 569-5800.
What is John O'brien's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is John O'brien enrolled in Medicare?
Yes. John 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 organizations bill Medicare for John O'brien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John O'brien reassigns Medicare benefits to 3 organizations: Neighborhealth Corporation (East Boston, MA), Internal Medical Associates-Ebnhc (East Boston, MA) and Harbor Health Services Inc (Dorchester, MA). Each 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 John O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John O'brien affiliated with any hospitals?
According to CMS data, John O'brien is affiliated with Boston Medical Center and St Joseph's Hospital Health Center.
When was this NPI record last updated?
The NPPES record for John O'brien was last updated on September 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# John Paul O'brien, D.O. · NPI 1417480351
Family Medicine physician in East Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 7, 2017.
## Identity
- **NPI:** 1417480351 (Entity type: Individual)
- **Enumerated:** April 7, 2017
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 289475 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 10 GOVE ST, East Boston, MA 02128-1920
- **Phone:** (617) 569-5800 · **Fax:** (617) 568-4756
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Neighborhealth Corporation (NPI 1316994411, East Boston, MA); Internal Medical Associates-Ebnhc (NPI 1558481879, East Boston, MA); Harbor Health Services Inc (NPI 1659330496, Dorchester, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** West Virginia School Of Osteopathic Medicine, class of 2016
## Record status
- **NPPES last updated:** September 17, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1417480351) · Data from the CMS NPPES public registry.