DR. MICHAEL VINCENT KLEIN M.D.
NPI 1205826237
Radiology - Diagnostic Radiology in La Jolla, CA
About Dr. Michael Vincent Klein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL VINCENT KLEIN M.D. (NPI 1205826237) is an individual diagnostic radiology provider in La Jolla, California, licensed in California (G75234) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Temple Health - Chestnut Hill Hospital, and maintains 10 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 10
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Michael Vincent Klein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
94Medicare enrollment records show Michael Klein reassigns Medicare billing to 94 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92130
- Reassigned Medicare billing, California enrollment
- 6 clinicians in this Medicare group
San Diego, CA 92115
- Reassigned Medicare billing, California enrollment
- 102 clinicians in this Medicare group
La Mesa, CA 91941
- Reassigned Medicare billing, California enrollment
- 78 clinicians in this Medicare group
Fallbrook, CA 92028
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Beverly Radiology Medical Group Iii
- Also billed through NPI 1649599085 (California), NPI 1801159736 (California)
- 349 clinicians in this Medicare group
Temecula, CA 92592
- Reassigned Medicare billing, California enrollment
- 124 clinicians in this Medicare group
Orange, CA 92869
- Reassigned Medicare billing, California enrollment
- 45 clinicians in this Medicare group
Fountain Valley, CA 92708
- Reassigned Medicare billing, California enrollment
- 948 clinicians in this Medicare group
Palm Desert, CA 92260
- Reassigned Medicare billing, California enrollment
- 278 clinicians in this Medicare group
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 95 clinicians in this Medicare group
Los Alamitos, CA 90720
- Reassigned Medicare billing, California enrollment
- 47 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 24
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.
Temple Health - Chestnut Hill Hospital
Acute Care Hospitals · Philadelphia, PARiverside Regional Medical Center
Acute Care Hospitals · Newport News, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92037 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.
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 Klein's NPI number?
The NPI number for Michael Klein is 1205826237. It was assigned to this individual provider in the NPPES registry on October 21, 2005.
Where is Michael Klein located?
Michael Klein practices at 4275 Executive Sq Suite 200, La Jolla, CA 92037. The listed phone number is (858) 999-8599.
What is Michael Klein's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Michael Klein enrolled in Medicare?
Yes. Michael Klein is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Michael Klein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Klein reassigns Medicare benefits to 94 organizations: Kennewick Radiology Group, PC (San Diego, CA), Modesto Radiological Medical Group, Inc (San Diego, CA), X-Ray Medical Group Inc (La Mesa, CA), Beverly Radiology Medical Group (Fallbrook, CA), Universal Radiology Partners Of California PC (Temecula, CA) and 89 more organizations, listed in the Medicare section above. 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 Klein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Klein accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 11 other insurers list Michael Klein 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.
Is Michael Klein affiliated with any hospitals?
According to CMS data, Michael Klein is affiliated with Temple Health - Chestnut Hill Hospital and Riverside Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Michael Klein was last updated on September 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days 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.
# Dr. Michael Vincent Klein, M.D. · NPI 1205826237
Diagnostic Radiology physician in La Jolla, California. Individual provider, active in the CMS NPPES registry since October 21, 2005.
## Identity
- **NPI:** 1205826237 (Entity type: Individual)
- **Enumerated:** October 21, 2005
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** G75234 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4275 EXECUTIVE SQ, SUITE 200, La Jolla, CA 92037-9123
- **Phone:** (858) 999-8599 · **Fax:** (858) 999-8599
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 94 organizations under Medicare reassignment (form CMS-855R): Kennewick Radiology Group, PC (NPI 1295209559, San Diego, CA); Modesto Radiological Medical Group, Inc (NPI 1629424486, San Diego, CA); X-Ray Medical Group Inc (NPI 1740232776, La Mesa, CA); Beverly Radiology Medical Group (NPI 1043681752, Fallbrook, CA); Universal Radiology Partners Of California PC (NPI 1467225235, Temecula, CA); and 89 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Diego School Of Medicine, class of 1990
## Record status
- **NPPES last updated:** September 11, 2026
- **Other identifiers:** Medicaid 00G752340 (CA); Other P00033516 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1205826237) · Data from the CMS NPPES public registry.