Can Mustafa Tamkoc, M.D.
Emergency Medicine Physician · Rancho Santa Margarita, CA
Can Mustafa Tamkoc, M.D. is an emergency medicine physician with a practice address in Rancho Santa Margarita, California, and NPI 1457565889, issued on May 8, 2007. Check the license (California A100094, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Can Mustafa Tamkoc
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- A100094 CA
TRN 8171 FL
Self-reported in NPPES; status is on the state search - Practice location
- 22032 EL Paseo Ste 130, Rancho Santa Margarita, CA 92688
- Phone
- (909) 729-5079
- Enumerated
- May 8, 2007
- Record last updated
- Dec 5, 2023
- Fax
- (909) 729-5081
- Medicare enrollment
- Enrolled (PECOS I20081023000495); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 22032 EL Paseo Ste 130
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barbara Witowska, MS PACMedical Physician Assistant1013034230
Verify Can Mustafa Tamkoc in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A100094Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average emergency medicine physician in 2024
242 Medicare Part D claims for 148 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.
Most prescribed
- Azithromycin32 claims
- Paxlovid17 claims
- Cephalexin16 claims
- Ciprofloxacin Hcl13 claims
- Doxycycline Monohydrate12 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
- 3titan Medical IncEl Monte, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Can Mustafa Tamkoc among 7,751 emergency medicine physician records in California
Can Mustafa Tamkoc, 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2004 · median 2011 among the 4,560 with a school on file
- Record last updated2023 · 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).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Rancho Santa Margarita → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Mohammad Al-Sayyad, MDMission Viejo, CA 926911538109418
- Jon Cline, M.D.Mission Viejo, CA 926911679505622
- Peter Czuleger, M.D.Mission Viejo, CA 926911043265580
- Matthew Kaplan, M.D.Mission Viejo, CA 926911518991322
- James Keany, M.D.Mission Viejo, CA 926911598799330
- Richard Kozak, M.D.Mission Viejo, CA 926911457380107
- Gregory Lampe, M.D.Mission Viejo, CA 926911902839863
- Andrew Lawson, M.D.Mission Viejo, CA 926911750314621
Common questions
What is Can Mustafa Tamkoc, M.D.'s NPI number?
Can Mustafa Tamkoc, M.D.'s National Provider Identifier (NPI) is 1457565889, issued on May 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Can Mustafa Tamkoc, M.D. located?
The NPPES record lists a practice address at 22032 EL Paseo Ste 130, Rancho Santa Margarita, CA, 92688. Phone: (909) 729-5079. Providers update this record themselves, so call before visiting.
How can I verify Can Mustafa Tamkoc, M.D.'s license?
NPPES lists California license number A100094, 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 Can Mustafa Tamkoc, M.D. prescribe under Medicare Part D?
In 2024, Can Mustafa Tamkoc, M.D. had 242 Medicare Part D claims for 148 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.