John Kaufman, MD
Orthopaedic Surgery Physician · Valencia, CA
John Kaufman, MD is an orthopaedic surgery physician with a practice address in Valencia, California, and NPI 1801992268, issued on Sep 15, 2006. Check the license (California C35644, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Kaufman
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- C35644 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23861 Mcbean Pkwy, Valencia, CA 91355
- Phone
- (661) 259-3412
- Enumerated
- Sep 15, 2006
- Record last updated
- Mar 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (661) 259-7384
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 23861 Mcbean Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Kaufman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C35644Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
113 Medicare Part D claims for 40 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Methylprednisolone24 claims
- Hydrocodone-Acetaminophen13 claims
- Celecoxib11 claims
- Ibandronate Sodium11 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.
John Kaufman among 2,276 orthopaedic surgery physician records in California
John Kaufman, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2015 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Valencia → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Jeffrey Kantor, MDValencia, CA 913551396823431
- Theodore Shybut, MDValencia, CA 913551407046584
- Charles Young, M.D.Valencia, CA 913551528236965
- Tye Ouzounian, MDTarzana, CA 913561902876709
- Hillel Sperling, M.D.Tarzana, CA 913561508899972
- Daniel Acevedo, M.D.Thousand Oaks, CA 913601184856122
- Philip Barry, MDThousand Oaks, CA 913601255330775
- Brian Bashner, MDThousand Oaks, CA 913601326236555
Common questions
What is John Kaufman, MD's NPI number?
John Kaufman, MD's National Provider Identifier (NPI) is 1801992268, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Kaufman, MD located?
The NPPES record lists a practice address at 23861 Mcbean Pkwy, Valencia, CA, 91355. Phone: (661) 259-3412. Providers update this record themselves, so call before visiting.
How can I verify John Kaufman, MD's license?
NPPES lists California license number C35644, 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 John Kaufman, MD prescribe under Medicare Part D?
In 2024, John Kaufman, MD had 113 Medicare Part D claims for 40 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.