Craig Olsen, M.D.
Endocrinology, Diabetes & Metabolism Physician · Los Alamitos, CA
Craig Olsen, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Los Alamitos, California, and NPI 1477529758, issued on Feb 27, 2006. Check the license (California G67512, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Craig Olsen
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- G67512 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4281 Katella Ave, Los Alamitos, CA 90720
- Phone
- (714) 252-1135
- Enumerated
- Feb 27, 2006
- Record last updated
- Feb 18, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (714) 226-0681
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 4281 Katella Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Craig Olsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G67512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
646 Medicare Part D claims for 197 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Jardiance57 claims
- Nano 2nd Gen Pen Needle49 claims
- Lantus Solostar48 claims
- Levothyroxine Sodium36 claims
- Metformin Hcl24 claims
- Trulicity24 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.
Craig Olsen among 1,131 endocrinology, diabetes & metabolism physician records in California
Craig Olsen, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2013 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Los Alamitos → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Hoon-Ji Choi, MDLos Alamitos, CA 907201225062888
- Irram Rao, M.DLomita, CA 907171386787505
- Namrata Bose, M.D.Harbor City, CA 907101346536547
- Edward Domurat Jr., MDHarbor City, CA 907101134290059
- Zeljko Zic, M.D.San Pedro, CA 907311417067331
- Olga Calof, M.D.San Pedro, CA 907321386667723
- Anna Arteaga Garcia, NPBellflower, CA 907061043176118
- Manuel Fernandez, MDBellflower, CA 907061952478836
Common questions
What is Craig Olsen, M.D.'s NPI number?
Craig Olsen, M.D.'s National Provider Identifier (NPI) is 1477529758, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Craig Olsen, M.D. located?
The NPPES record lists a practice address at 4281 Katella Ave, Los Alamitos, CA, 90720. Phone: (714) 252-1135. Providers update this record themselves, so call before visiting.
How can I verify Craig Olsen, M.D.'s license?
NPPES lists California license number G67512, 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 Craig Olsen, M.D. prescribe under Medicare Part D?
In 2024, Craig Olsen, M.D. had 646 Medicare Part D claims for 197 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.