MR. ALEX DAVID O'BRIEN NP
NPI 1609632470
Nurse Practitioner - Adult Health in Rochester, NY
About Mr. Alex David O'brien Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. ALEX DAVID O'BRIEN NP (NPI 1609632470) is an individual adult health provider in Rochester, New York, licensed in New York (311618) and active in the NPI registry since February 2024. He is enrolled in Medicare PECOS, is affiliated with Strong Memorial Hospital, and is a graduate of Other (2023).
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
Mr. Alex David 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 Reassignments
3Medicare enrollment records show Alex O'brien reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, NY 14642
- Reassigned Medicare billing, New York enrollment
- 71 clinicians in this Medicare group
Rochester, NY 14642
- Reassigned Medicare billing, New York enrollment
- 1,624 clinicians in this Medicare group
Rochester, NY 14620
- Reassigned Medicare billing, New York enrollment
- 465 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Strong Memorial Hospital
Acute Care Hospitals · Rochester, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14642 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCHESTER, NY 14642
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 Alex O'brien's NPI number?
The NPI number for Alex O'brien is 1609632470. It was assigned to this individual provider in the NPPES registry on February 28, 2024.
Where is Alex O'brien located?
Alex O'brien practices at 601 Elmwood Ave Fl Center4, Rochester, NY 14642. The listed phone number is (585) 275-4711.
What is Alex O'brien's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Alex O'brien enrolled in Medicare?
Yes. Alex 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 Alex O'brien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alex O'brien reassigns Medicare benefits to 3 organizations: Gastrointestinal Group (Rochester, NY), University Of Rochester (Rochester, NY) and Highland Hospital Of Rochester (Rochester, NY). 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 Alex O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alex O'brien affiliated with any hospitals?
According to CMS data, Alex O'brien is affiliated with Strong Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Alex O'brien was last updated on February 28, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mr. Alex David O'brien, NP · NPI 1609632470
Adult Health physician in Rochester, New York. Individual provider, active in the CMS NPPES registry since February 28, 2024.
## Identity
- **NPI:** 1609632470 (Entity type: Individual)
- **Enumerated:** February 28, 2024
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 311618 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 601 ELMWOOD AVE FL CENTER4, Rochester, NY 14642-0001
- **Phone:** (585) 275-4711
## 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): Gastrointestinal Group (NPI 1114977048, Rochester, NY); University Of Rochester (NPI 1346285657, Rochester, NY); Highland Hospital Of Rochester (NPI 1740220698, Rochester, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** February 28, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1609632470) · Data from the CMS NPPES public registry.