CATHERINE L BAKER ARNP
NPI 1013105501
Nurse Practitioner - Psychiatric/Mental Health in Long Beach, CA
About Catherine L Baker Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE L BAKER ARNP (NPI 1013105501) is an individual psychiatric/mental health provider in Long Beach, California, licensed in California (20835) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (2007).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Catherine L Baker Arnp 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 Catherine Baker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92110
- Reassigned Medicare billing, California enrollment
- 147 clinicians in this Medicare group
San Diego, CA 92108
- Reassigned Medicare billing, California enrollment
- 98 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
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 90815 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 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LONG BEACH, CA 90815
LONG BEACH, CA 90815
LONG BEACH, CA 90815
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 Catherine Baker's NPI number?
The NPI number for Catherine Baker is 1013105501. It was assigned to this individual provider in the NPPES registry on October 9, 2007. The provider is also known as Catherine L Clark Arnp.
Where is Catherine Baker located?
Catherine Baker practices at 4525 E Atherton St, Long Beach, CA 90815. The listed phone number is (562) 961-0155.
What is Catherine Baker's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Catherine Baker enrolled in Medicare?
Yes. Catherine Baker 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 Catherine Baker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Baker reassigns Medicare benefits to 2 organizations: Community Research Foundation Inc (San Diego, CA) and Senior Medical Associates, Inc. (San Diego, 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 Catherine Baker'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 Catherine Baker was last updated on July 20, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Catherine L Baker, ARNP · NPI 1013105501
Psychiatric/Mental Health physician in Long Beach, California. Individual provider, active in the CMS NPPES registry since October 9, 2007.
## Identity
- **NPI:** 1013105501 (Entity type: Individual)
- **Enumerated:** October 9, 2007
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 20835 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4525 E ATHERTON ST, Long Beach, CA 90815
- **Phone:** (562) 961-0155 · **Fax:** (562) 961-0161
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Community Research Foundation Inc (NPI 1952328700, San Diego, CA); Senior Medical Associates, Inc. (NPI 1629253505, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 2007
## Record status
- **NPPES last updated:** July 20, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1013105501) · Data from the CMS NPPES public registry.