Ma Catherine Guico-Williams Cooper, NP
Nurse Practitioner · Torrance, CA
Ma Catherine Guico-Williams Cooper, NP is a nurse practitioner with a practice address in Torrance, California, and NPI 1457854739, issued on Mar 13, 2018. Check the license (California NP95007815, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ma Catherine Guico-Williams Cooper
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- NP95007815 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 W Carson St, Torrance, CA 90502
- Phone
- (310) 222-2796
- Enumerated
- Mar 13, 2018
- Record last updated
- Mar 13, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- NP95007815 CA
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 1000 W Carson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arjan AbarStudent in an Organized Health Care Education/Training Program1982309290
- Brenda Abarca, MDPsychiatry Physician1407485527
- Maleeha AbbasStudent in an Organized Health Care Education/Training Program1275203499
- Saamirah Abdul-MuminCommunity Health Worker1144683947
- Maria Elena AbedesAmbulatory Care Registered Nurse1184360992
- Hoda Abou-Ziab, PSYDClinical Psychologist1649618125
Verify Ma Catherine Guico-Williams Cooper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP95007815Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average nurse practitioner in 2024
42 Medicare Part D claims, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Gabapentin16 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.
Ma Catherine Guico-Williams Cooper among 8,223 nurse practitioner records in California
Ma Catherine Guico-Williams Cooper, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 56% of them.
- NPI issued2018 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2018 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Torrance → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Eleia Bibay, FNPTorrance, CA 905021225427941
- Michelle Kathleen Casanova, FNPTorrance, CA 905021528457249
- Antoinette Chavez, FNP-C, CDETorrance, CA 905021114323557
- Teddy DangTorrance, CA 905021134591944
- Lucia Diaz, NPTorrance, CA 905021194970574
- Eric Gallardo, ACNPTorrance, CA 905021649429861
- Cristina Garcia, FNPTorrance, CA 905021265087571
- Wendi Gilchrist, NPTorrance, CA 905021649251455
Common questions
What is Ma Catherine Guico-Williams Cooper, NP's NPI number?
Ma Catherine Guico-Williams Cooper, NP's National Provider Identifier (NPI) is 1457854739, issued on Mar 13, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ma Catherine Guico-Williams Cooper, NP located?
The NPPES record lists a practice address at 1000 W Carson St, Torrance, CA, 90502. Phone: (310) 222-2796. Providers update this record themselves, so call before visiting.
How can I verify Ma Catherine Guico-Williams Cooper, NP's license?
NPPES lists California license number NP95007815, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ma Catherine Guico-Williams Cooper, NP prescribe under Medicare Part D?
In 2024, Ma Catherine Guico-Williams Cooper, NP had 42 Medicare Part D claims; the average among nurse practitioner prescribers was 1,109. 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.