Catherine L. Baker, ARNP
Psychiatric/Mental Health Nurse Practitioner · Long Beach, CA
Catherine L. Baker, ARNP is a psychiatric/mental health nurse practitioner with a practice address in Long Beach, California, and NPI 1013105501, issued on Oct 9, 2007. Check the license (California 20835, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine L. Baker
- Credential
- ARNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- 20835 CA
AP30007898 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4525 E Atherton St, Long Beach, CA 90815
- Phone
- (562) 961-0155
- Enumerated
- Oct 9, 2007
- Record last updated
- Jul 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (562) 961-0161
- Medicare enrollment
- Enrolled (PECOS I20110725000484); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2007
- Entity
- Type 1 · individual
Also registered at 4525 E Atherton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarkis Arevian, M.D.Psychiatry Physician1801864269
- Fragrance Bumatay, NPPsychiatric/Mental Health Nurse Practitioner1609203900
- Cara FlemingPsychiatry Physician1245851211
- Armen Goenjian, MDPsychiatry Physician1588632855
- Sherwin Imperio, DNP, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1225565104
- James Jen Kin, MDPsychiatry Physician1548238819
Verify Catherine L. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 20835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
249 Medicare Part D claims for 40 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Venlafaxine Hcl Er32 claims
- Quetiapine Fumarate20 claims
- Olanzapine15 claims
- Trazodone Hcl15 claims
- Clozapine12 claims
- Fluoxetine Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,315.94
48 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Community Research Foundation IncEscondido, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in California
There are 4,226 psychiatric/mental health nurse practitioner records in California.
Other psychiatric/mental health nurse practitioner records in California
- Cristina Aamot, NPSanta Ana, CA1356563167
- Calista Abaekobe, NPCulver City, CA1205590338
- Jane Abanes, NPSan Francisco, CA1821385675
- Pamela Joy Abao, NPValencia, CA1093178261
- Kazeem AbassLos Angeles, CA1518434281
- Nefretiri Abat, PMHNP-BCHayward, CA1184324014
- Oluwakemi AbayomiLos Angeles, CA1598508913
- Natasha Abbas, PMHNPLong Beach, CA1619797834
- Taha Abdelwahhab, APRN-CNP, PMHNPHayward, CA1760670616
- Ralaine Abdon, NPSacramento, CA1124699855
Common questions
What is Catherine L. Baker, ARNP's NPI number?
Catherine L. Baker, ARNP's National Provider Identifier (NPI) is 1013105501, issued on Oct 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Catherine L. Baker, ARNP located?
The NPPES record lists a practice address at 4525 E Atherton St, Long Beach, CA, 90815. Phone: (562) 961-0155. Providers update this record themselves, so call before visiting.
How can I verify Catherine L. Baker, ARNP's license?
NPPES lists California license number 20835, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine L. Baker, ARNP prescribe under Medicare Part D?
In 2024, Catherine L. Baker, ARNP had 249 Medicare Part D claims for 40 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.