MICHAEL KEVIN O'BRIEN M.D.
NPI 1730107061
Surgery in New Haven, CT
About Michael Kevin O'brien M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL KEVIN O'BRIEN M.D. (NPI 1730107061) is an individual surgery provider in New Haven, Connecticut, licensed in Connecticut (035075) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Wake Forest University School Of Medicine (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Michael Kevin O'brien M.d. 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 Michael O'brien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Haven, CT 06510
- Reassigned Medicare billing, Connecticut enrollment
- 2 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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06510 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.
NEW HAVEN, CT 06510
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 Michael O'brien's NPI number?
The NPI number for Michael O'brien is 1730107061. It was assigned to this individual provider in the NPPES registry on July 17, 2006.
Where is Michael O'brien located?
Michael O'brien practices at 60 Temple St Suite 5A, New Haven, CT 06510. The listed phone number is (203) 772-0650.
What is Michael O'brien's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Michael O'brien enrolled in Medicare?
Yes. Michael 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 Michael O'brien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael O'brien reassigns Medicare benefits to Surgical Associates Of New Haven, PC (New Haven, CT). 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 Michael O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael O'brien accept?
Health plans from Anthem Blue Cross and Blue Shield list Michael 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 Michael O'brien was last updated on January 8, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.