Karl Christoffersen, MD
Orthopaedic Surgery Physician · Santa Cruz, CA
Karl Christoffersen, MD is an orthopaedic surgery physician with a practice address in Santa Cruz, California, and NPI 1407835556, issued on Jan 16, 2006. Check the license (California G74982, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karl Christoffersen
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- G74982 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2907 Chanticleer Ave, Santa Cruz, CA 95065
- Phone
- (831) 477-2325
- Enumerated
- Jan 16, 2006
- Record last updated
- Jan 3, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080718000630); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1991
- Entity
- Type 1 · individual
Also registered at 2907 Chanticleer Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anabel Albano, CNMAdvanced Practice Midwife1336335611
- Kelli Beingesser, MDObstetrics & Gynecology Physician1730144528
- Tamara Belkin, CNMAdvanced Practice Midwife1871612853
- Adwoa Christy, MDObstetrics & Gynecology Physician1225017379
- Angelika DesimoneFamily Nurse Practitioner1609415728
Verify Karl Christoffersen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74982Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
69 Medicare Part D claims for 55 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 26 claims were for opioids.
Most prescribed
- Cephalexin19 claims
- Amoxicillin11 claims
- Oxycodone Hcl11 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
- Sutter Bay Medical FoundationSanta Cruz, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
Other orthopaedic surgery physician records in California
- Karim Abdollahi, M.D.Laguna Beach, CA1942240403
- Michael Abdulian, MDGlendale, CA1649469628
- Hussein Abdulrassoul, MDRiverside, CA1972123891
- Douglas Abeles, MDCastro Valley, CA1508961582
- Anthony Abene, MDSan Jose, CA1457437964
- Torgom Abraamyan, M.D.Van Nuys, CA1013370410
- Monther AbuhantashSan Francisco, CA1447041512
- Joshua Acebo, MDPalo Alto, CA1396373734
- Daniel Acevedo, M.D.Thousand Oaks, CA1184856122
- John Adams, MDLos Angeles, CA1215914114
Common questions
What is Karl Christoffersen, MD's NPI number?
Karl Christoffersen, MD's National Provider Identifier (NPI) is 1407835556, issued on Jan 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karl Christoffersen, MD located?
The NPPES record lists a practice address at 2907 Chanticleer Ave, Santa Cruz, CA, 95065. Phone: (831) 477-2325. Providers update this record themselves, so call before visiting.
How can I verify Karl Christoffersen, MD's license?
NPPES lists California license number G74982, 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 Karl Christoffersen, MD prescribe under Medicare Part D?
In 2024, Karl Christoffersen, MD had 69 Medicare Part D claims for 55 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.