Cherlyn Faith Alferos, FNP
Family Nurse Practitioner · Walnut Creek, CA
Cherlyn Faith Alferos, FNP is a family nurse practitioner with a practice address in Walnut Creek, California, and NPI 1568155430, issued on May 29, 2023. Check the license (California 95023557, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cherlyn Faith Alferos
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95023557 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2405 Shadelands Dr Ste 300, Walnut Creek, CA 94598
- Phone
- (925) 939-8585
- Enumerated
- May 29, 2023
- Record last updated
- Nov 2, 2023
- Fax
- (925) 933-2709
- Medicare enrollment
- Enrolled (PECOS I20240102001408); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 2405 Shadelands Dr Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cherlyn Faith Alferos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95023557Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average family nurse practitioner in 2024
457 Medicare Part D claims for 338 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Diclofenac Sodium165 claims
- Cyclobenzaprine Hcl85 claims
- Prednisone62 claims
- Methylprednisolone56 claims
- Celecoxib33 claims
- Tramadol 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: $15.58
1 payment: food and beverage; the largest payer was Masimo Corporation. The 99,489 providers of this specialty with any payment received $650.95 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
- Golden State Orthopedics And SpineWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cherlyn Faith Alferos among 16,966 family nurse practitioner records in California
Cherlyn Faith Alferos, FNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 75% of them.
- NPI issued2023 · 75% of these records are older, 17% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2021 · median 2019 among the 6,793 with a school on file
- Record last updated2023 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
107 family nurse practitioner records list a practice address in Walnut Creek
They are 107 of the 6,170 NPPES records with a practice address in Walnut Creek, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Walnut Creek → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Cheri Arbizu, MSN, FNPWalnut Creek, CA 945981205922630
- Shellie Campos, NPWalnut Creek, CA 945981982871331
- Melanie Charles, N.P.Walnut Creek, CA 945981972792950
- Ronald Connolly, FNPWalnut Creek, CA 945981710296116
- Janice Dolan, MSN/FNPWalnut Creek, CA 945981982680864
- Martha Eppenberger, FNPWalnut Creek, CA 945981710284096
- Sylvia Esperanza, NPWalnut Creek, CA 945981104067297
- Shawna Joaquin, NP-CWalnut Creek, CA 945981942436811
Common questions
What is Cherlyn Faith Alferos, FNP's NPI number?
Cherlyn Faith Alferos, FNP's National Provider Identifier (NPI) is 1568155430, issued on May 29, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Cherlyn Faith Alferos, FNP located?
The NPPES record lists a practice address at 2405 Shadelands Dr Ste 300, Walnut Creek, CA, 94598. Phone: (925) 939-8585. Providers update this record themselves, so call before visiting.
How can I verify Cherlyn Faith Alferos, FNP's license?
NPPES lists California license number 95023557, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Cherlyn Faith Alferos, FNP prescribe under Medicare Part D?
In 2024, Cherlyn Faith Alferos, FNP had 457 Medicare Part D claims for 338 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.