NPPES file of Aug 9, 2026

Christi Lynn Wiley, M.D.

Family Medicine Physician · Fontana, CA

Christi Lynn Wiley, M.D. is a family medicine physician with a practice address in Fontana, California, and NPI 1629231147, issued on Jul 3, 2008. Check the license (California A98378, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629231147
Name
Christi Lynn Wiley
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A98378 CA
Self-reported in NPPES; status is on the state search
Practice location
17051 Sierra Lakes Pkwy, Fontana, CA 92336
Phone
(909) 428-2040
Enumerated
Jul 3, 2008
Record last updated
Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(909) 428-2191
Medicaid IDs
1629231147 CA
1174760953 CA
1518136787 CA
Medicare enrollment
Enrolled (PECOS I20081103000341); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 17051 Sierra Lakes Pkwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alfonso Becerra, PHYSICIAN ASSISTANTMedical Physician Assistant1275717506
  2. Rabia Manzoor, MDPediatric Adolescent Medicine Physician1558422931
  3. Kristine Ryall, APRN MSN FNPCFamily Nurse Practitioner1043411374

Verify Christi Lynn Wiley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A98378
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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49% fewer Medicare Part D claims than the average family medicine physician in 2024

1,792 Medicare Part D claims for 160 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 70 claims were for opioids.

  1. Christi Wiley1,792
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium133 claims
  2. Omeprazole72 claims
  3. Amlodipine Besylate69 claims
  4. Losartan Potassium64 claims
  5. Lisinopril62 claims
  6. Metformin Hcl58 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.

Bills Medicare through 2 group practices

  1. Sac Health SystemSan Bernardino, CA
  2. Southern California Permanente Medical GroupFontana, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

198 family medicine physician records list a practice address in Fontana

They are 198 of the 3,012 NPPES records with a practice address in Fontana, and 17,133 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Christi Lynn Wiley, M.D.'s NPI number?

Christi Lynn Wiley, M.D.'s National Provider Identifier (NPI) is 1629231147, issued on Jul 3, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Christi Lynn Wiley, M.D. located?

The NPPES record lists a practice address at 17051 Sierra Lakes Pkwy, Fontana, CA, 92336. Phone: (909) 428-2040. Providers update this record themselves, so call before visiting.

How can I verify Christi Lynn Wiley, M.D.'s license?

NPPES lists California license number A98378, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christi Lynn Wiley, M.D. prescribe under Medicare Part D?

In 2024, Christi Lynn Wiley, M.D. had 1,792 Medicare Part D claims for 160 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.