Alexis Wildenauer, D.O.
Emergency Medicine Physician · Fontana, CA
Alexis Wildenauer, D.O. is an emergency medicine physician with a practice address in Fontana, California, and NPI 1417247537, issued on Apr 11, 2011. Check the license (California 20A13902, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexis Wildenauer
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A13902 CA
5101019330 MI
Self-reported in NPPES; status is on the state search - Practice location
- 9961 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-5000
- Enumerated
- Apr 11, 2011
- Record last updated
- Nov 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151013000400); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 9961 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Solomon Abila, MDFamily Medicine Physician1871652479
- Jenny Abouelsood, M.D.Family Medicine Physician1457638512
- Marla Abrolat, MDPediatrics Physician1164593133
- Eduardo Acosta, MDPediatrics Physician1497803324
- Michael Adair, MDFamily Medicine Physician1780732651
- Berneva Adams, MDObstetrics & Gynecology Physician1376602987
Verify Alexis Wildenauer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A13902Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average emergency medicine physician in 2024
321 Medicare Part D claims for 207 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Cephalexin64 claims
- Hydrocodone-Acetaminophen23 claims
- Prednisone23 claims
- Ondansetron Odt22 claims
- Ibuprofen19 claims
- Albuterol Sulfate Hfa14 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 one group practice
- 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).
Alexis Wildenauer among 7,751 emergency medicine physician records in California
Alexis Wildenauer, D.O. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 60% of them.
- NPI issued2011 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2011 · median 2011 among the 4,560 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
55 emergency medicine physician records list a practice address in Fontana
They are 55 of the 3,012 NPPES records with a practice address in Fontana, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Fontana → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Pierre Assaf, MDFontana, CA 923351417969973
- Greg Capestany, MDFontana, CA 923351134277007
- Pushkar Chand, M.D.Fontana, CA 923351013074582
- Jonathan Chock, MDFontana, CA 923351770650624
- Karita Goulbourne, MDFontana, CA 923351619044500
- Charlene Jung, MDFontana, CA 923351346398146
- Shant Kalanjian, MDFontana, CA 923351942377841
- Ronald Lugo, MDFontana, CA 923351972670883
Common questions
What is Alexis Wildenauer, D.O.'s NPI number?
Alexis Wildenauer, D.O.'s National Provider Identifier (NPI) is 1417247537, issued on Apr 11, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Alexis Wildenauer, D.O. located?
The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-5000. Providers update this record themselves, so call before visiting.
How can I verify Alexis Wildenauer, D.O.'s license?
NPPES lists California license number 20A13902, 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 Alexis Wildenauer, D.O. prescribe under Medicare Part D?
In 2024, Alexis Wildenauer, D.O. had 321 Medicare Part D claims for 207 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.