Michael Scott Mortensen, PHYSICIAN ASSISTANT
Medical Physician Assistant · Thousand Oaks, CA
Michael Scott Mortensen, PHYSICIAN ASSISTANT is a medical physician assistant with a practice address in Thousand Oaks, California, and NPI 1124671532, issued on Jul 24, 2019. Check the license (California 56485, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Scott Mortensen
- Credential
- PHYSICIAN ASSISTANT
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 56485 CA
Self-reported in NPPES; status is on the state search - Practice location
- 425 Haaland Dr Ste 102, Thousand Oaks, CA 91361
- Phone
- (805) 723-8008
- Enumerated
- Jul 24, 2019
- Record last updated
- Jul 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Verify Michael Scott Mortensen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 56485Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average medical physician assistant in 2024
13 Medicare Part D claims, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
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.
Michael Scott Mortensen among 3,376 medical physician assistant records in California
Michael Scott Mortensen, PHYSICIAN ASSISTANT is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 74% of them.
- NPI issued2019 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2019 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Thousand Oaks → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Amanda Dominguez, PA-CWestlake Village, CA 913611265059307
- Karen Hartnett, PAWestlake Village, CA 913611225345895
- Crispin Abbott, PHYSICIAN ASSISTANTThousand Oaks, CA 913601063467926
- Marilyn Becker, P.A.Thousand Oaks, CA 913601437324019
- Kimberly Esgate, PAThousand Oaks, CA 913601174166714
- Melissa Howie, PA-CThousand Oaks, CA 913601285744268
- Kerri Lauchner, PA-CThousand Oaks, CA 913601255536066
- Michele Messiah, PAWestlake Village, CA 913621568891851
Common questions
What is Michael Scott Mortensen, PHYSICIAN ASSISTANT's NPI number?
Michael Scott Mortensen, PHYSICIAN ASSISTANT's National Provider Identifier (NPI) is 1124671532, issued on Jul 24, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Michael Scott Mortensen, PHYSICIAN ASSISTANT located?
The NPPES record lists a practice address at 425 Haaland Dr Ste 102, Thousand Oaks, CA, 91361. Phone: (805) 723-8008. Providers update this record themselves, so call before visiting.
How can I verify Michael Scott Mortensen, PHYSICIAN ASSISTANT's license?
NPPES lists California license number 56485, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Scott Mortensen, PHYSICIAN ASSISTANT prescribe under Medicare Part D?
In 2024, Michael Scott Mortensen, PHYSICIAN ASSISTANT had 13 Medicare Part D claims; the average among medical physician assistant prescribers was 1,148. 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.