Christoph Wichelhaus, M.D.
Emergency Medicine Physician · Orange, CA
Christoph Wichelhaus, M.D. is an emergency medicine physician with a practice address in Orange, California, and NPI 1043496276, issued on Jan 17, 2008. Check the license (California CURRENTLY APPLYING, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christoph Wichelhaus
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- CURRENTLY APPLYING CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S, Orange, CA 92868
- Phone
- (714) 456-5922
- Enumerated
- Jan 17, 2008
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20090922000444); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2006
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 101 The City Dr S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abad, PAPhysician Assistant1477158673
- Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
- Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
- Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
- Eric AbelloOtolaryngology Physician1922566215
- Brandon Abeyta, MDAnesthesiology Physician1841291804
Verify Christoph Wichelhaus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license CURRENTLY APPLYINGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% more Medicare Part D claims than the average emergency medicine physician in 2024
326 Medicare Part D claims for 205 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 43 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen36 claims
- Prednisone19 claims
- Amoxicillin-Clavulanate Potass18 claims
- Naproxen18 claims
- Cefadroxil11 claims
- Cephalexin11 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
- Permanente Medical Group IncAntioch, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christoph Wichelhaus among 7,751 emergency medicine physician records in California
Christoph Wichelhaus, M.D. 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 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2006 · median 2011 among the 4,560 with a school on file
- Record last updated2022 · 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).
179 emergency medicine physician records list a practice address in Orange
They are 179 of the 13,245 NPPES records with a practice address in Orange, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Orange → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Michael Anderson, MDOrange, CA 928681093747750
- Rishi Bhargava, MDOrange, CA 928681407811623
- Jonathan Blair, MDOrange, CA 928681891727954
- Bharath Chakravarthy, MDOrange, CA 928681144259839
- Elizabeth Fiedler, MDOrange, CA 928681578594529
- Jeffrey Hughes, MDOrange, CA 928681871525949
- Michael Menchine, MDOrange, CA 928681912963612
- David Merin, MDOrange, CA 928681811929979
Common questions
What is Christoph Wichelhaus, M.D.'s NPI number?
Christoph Wichelhaus, M.D.'s National Provider Identifier (NPI) is 1043496276, issued on Jan 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Christoph Wichelhaus, M.D. located?
The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-5922. Providers update this record themselves, so call before visiting.
How can I verify Christoph Wichelhaus, M.D.'s license?
NPPES lists California license number CURRENTLY APPLYING, 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 Christoph Wichelhaus, M.D. prescribe under Medicare Part D?
In 2024, Christoph Wichelhaus, M.D. had 326 Medicare Part D claims for 205 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.