Ashton Mark Garbutt, MD
Adult Medicine Physician · Mission Hills, CA
Ashton Mark Garbutt, MD is an adult medicine physician with a practice address in Mission Hills, California, and NPI 1407350622, issued on Mar 21, 2018. Check the license (California A165899, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ashton Mark Garbutt
- Credential
- MD
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- A165899 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11333 Sepulveda Blvd, Mission Hills, CA 91345
- Phone
- (818) 869-7254
- Enumerated
- Mar 21, 2018
- Record last updated
- May 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20211129001694); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 11333 Sepulveda Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ashton Mark Garbutt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A165899Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average adult medicine physician in 2024
2,906 Medicare Part D claims for 384 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium285 claims
- Amlodipine Besylate189 claims
- Losartan Potassium154 claims
- Metformin Hcl135 claims
- Lisinopril116 claims
- Levothyroxine Sodium95 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
- Providence Facey Medical FoundationMission Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashton Mark Garbutt among 386 adult medicine physician records in California
Ashton Mark Garbutt, MD is one of 386 adult medicine physician 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 2018, is newer than 79% of them.
- NPI issued2018 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2018 · median 2005 among the 187 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in Mission Hills → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Ladan Hassanzadeh-KhayyatMission Hills, CA 913451831830868
- Divya Manivannan, M.D..Mission Hills, CA 913451164161139
- Maxime Rappaport, MDMission Hills, CA 913451689378499
- Margarit Baghdasaryan, FNPGranada Hills, CA 913441588430383
- Andrew Degiorgio, M.D.Pacoima, CA 913311447785217
- Munira Husain, M.D.Thousand Oaks, CA 913601184856460
- Mary Pascasio, MDThousand Oaks, CA 913601508037300
- Michele Ghaussy, M.D.Thousand Oaks, CA 913611962402180
Common questions
What is Ashton Mark Garbutt, MD's NPI number?
Ashton Mark Garbutt, MD's National Provider Identifier (NPI) is 1407350622, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ashton Mark Garbutt, MD located?
The NPPES record lists a practice address at 11333 Sepulveda Blvd, Mission Hills, CA, 91345. Phone: (818) 869-7254. Providers update this record themselves, so call before visiting.
How can I verify Ashton Mark Garbutt, MD's license?
NPPES lists California license number A165899, 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 Ashton Mark Garbutt, MD prescribe under Medicare Part D?
In 2024, Ashton Mark Garbutt, MD had 2,906 Medicare Part D claims for 384 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.