Janet William, NP
Nurse Practitioner · Cerritos, CA
Janet William, NP is a nurse practitioner with a practice address in Cerritos, California, and NPI 1821505587, issued on Jan 3, 2018. Check the license (California NP95007086, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Janet William
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- NP95007086 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18000 Studebaker RD Ste 800, Cerritos, CA 90703
- Phone
- (562) 735-3226
- Enumerated
- Jan 3, 2018
- Record last updated
- May 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 18000 Studebaker RD Ste 800
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Janet William in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP95007086Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average nurse practitioner in 2024
550 Medicare Part D claims for 111 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 165 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen78 claims
- Anastrozole58 claims
- Ondansetron Odt22 claims
- Fentanyl21 claims
- Hydroxyurea20 claims
- Oxycodone Hcl19 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: $5,489.52
221 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 38,884 providers of this specialty with any payment received $791.64 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.
Janet William among 8,223 nurse practitioner records in California
Janet William, 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 updated2020 · 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).
23 nurse practitioner records list a practice address in Cerritos
They are 23 of the 1,842 NPPES records with a practice address in Cerritos, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Cerritos → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Krystal Adams, N.PCerritos, CA 907031114229697
- Shalani Albayalde, N.P.Cerritos, CA 907031245362375
- Brian Bristol, ANP-CCerritos, CA 907031265777981
- Lizel CraigCerritos, CA 907031407136328
- Anne Grace Guzman, FNPCerritos, CA 907031932448024
- Hsiu-Chuan Ho, NPCerritos, CA 907031679873582
- Rebecca Knight, N.P.Cerritos, CA 907031053327270
- Guada Lazo, AGNP-CCerritos, CA 907031528590585
Common questions
What is Janet William, NP's NPI number?
Janet William, NP's National Provider Identifier (NPI) is 1821505587, issued on Jan 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Janet William, NP located?
The NPPES record lists a practice address at 18000 Studebaker RD Ste 800, Cerritos, CA, 90703. Phone: (562) 735-3226. Providers update this record themselves, so call before visiting.
How can I verify Janet William, NP's license?
NPPES lists California license number NP95007086, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Janet William, NP prescribe under Medicare Part D?
In 2024, Janet William, NP had 550 Medicare Part D claims for 111 beneficiaries; 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.