MICHAEL WARREN BERGIN M.D.
NPI 1831572338
Anesthesiology in Ventura, CA
About Michael Warren Bergin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL WARREN BERGIN M.D. (NPI 1831572338) is an individual anesthesiology provider in Ventura, California, licensed in California (A143819) and active in the NPI registry since July 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Torrance, and is a graduate of Saint Louis University School Of Medicine (2016).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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 Warren Bergin 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 Reassignments
2Medicare enrollment records show Michael Bergin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ventura, CA 93003
- Reassigned Medicare billing, California enrollment
- 52 clinicians in this Medicare group
Fresno, CA 93720
- Reassigned Medicare billing, California enrollment
- 604 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 7
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
VENTURA, CA 93003
VENTURA, CA 93003
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 Bergin's NPI number?
The NPI number for Michael Bergin is 1831572338. It was assigned to this individual provider in the NPPES registry on July 1, 2015.
Where is Michael Bergin located?
Michael Bergin practices at 147 N Brent St, Ventura, CA 93003. The listed phone number is (805) 652-5011.
What is Michael Bergin's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Michael Bergin enrolled in Medicare?
Yes. Michael Bergin 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 Michael Bergin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Bergin reassigns Medicare benefits to 2 organizations: Ventura Anesthesia Medical Group (Ventura, CA) and Community Health Partners (Fresno, CA). 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 Michael Bergin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Michael Bergin was last updated on October 16, 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.