DR. KATHLEEN BEATRICE SULLIVAN M.D.
NPI 1144244476
Anesthesiology in Laguna Hills, CA
About Dr. Kathleen Beatrice Sullivan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KATHLEEN BEATRICE SULLIVAN M.D. (NPI 1144244476) is an individual anesthesiology provider in Laguna Hills, California, licensed in California (G49346) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (1980).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Dr. Kathleen Beatrice Sullivan 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 Kathleen Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Long Beach, CA 90806
- Reassigned Medicare billing, California enrollment
- 107 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.
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.
LAGUNA HILLS, CA 92653
LAGUNA HILLS, CA 92653
LAGUNA HILLS, CA 92653
LAGUNA HILLS, CA 92653
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 Kathleen Sullivan's NPI number?
The NPI number for Kathleen Sullivan is 1144244476. It was assigned to this individual provider in the NPPES registry on July 27, 2006.
Where is Kathleen Sullivan located?
Kathleen Sullivan practices at 24451 Health Center Dr, Laguna Hills, CA 92653. The listed phone number is (949) 837-4500.
What is Kathleen Sullivan's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Kathleen Sullivan enrolled in Medicare?
Yes. Kathleen Sullivan 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 Kathleen Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Sullivan reassigns Medicare benefits to California Anesthesia Associates Medical Group, Inc. (Long Beach, CA). 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 Kathleen Sullivan'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 Kathleen Sullivan was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Kathleen Beatrice Sullivan, M.D. · NPI 1144244476
Anesthesiology physician in Laguna Hills, California. Individual provider, active in the CMS NPPES registry since July 27, 2006.
## Identity
- **NPI:** 1144244476 (Entity type: Individual)
- **Enumerated:** July 27, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** G49346 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 24451 HEALTH CENTER DR, Laguna Hills, CA 92653-3689
- **Phone:** (949) 837-4500 · **Fax:** (949) 837-4621
## 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:** California Anesthesia Associates Medical Group, Inc. (NPI 1457399933, Long Beach, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Stanford University School Of Medicine, class of 1980
## Record status
- **NPPES last updated:** July 9, 2007
- **Other identifiers:** Other 00G493460 (CA); Medicaid 00G493460 (CA); Medicare ID-Type Unspecified WG49346E (CA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1144244476) · Data from the CMS NPPES public registry.