Leo Best, PA-C
Physician Assistant · Vista, CA
Leo Best, PA-C is a physician assistant with a practice address in Vista, California, and NPI 1376723437, issued on Nov 6, 2007. Check the license (California PA15373, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Leo Best
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA15373 CA
Self-reported in NPPES; status is on the state search - Practice location
- 145 Thunder Dr, Vista, CA 92083
- Phone
- (760) 630-5487
- Enumerated
- Nov 6, 2007
- Entity
- Type 1 · individual
Also registered at 145 Thunder Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Erinn Degracia, FNPFamily Nurse Practitioner1043729825
- Sean Easton, PAPhysician Assistant1790284131
- Terry Haas, M.D.Internal Medicine Physician1891868212
Verify Leo Best in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA15373Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
64% fewer Medicare Part D claims than the average physician assistant in 2024
296 Medicare Part D claims for 197 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Prednisone51 claims
- Doxycycline Hyclate36 claims
- Cephalexin21 claims
- Cefuroxime20 claims
- Mupirocin19 claims
- Ibuprofen16 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.
38 physician assistant records list a Vista practice address
They are 38 of the 2,017 NPPES records with a Vista practice address, and 13,861 physician assistant records in California.
All 38 in Vista → All 13,861 in California → Every provider in Vista →
Other physician assistant records in California
- Marcia -Galbraith, PAStockton, CA1407143274
- Danny Abad, PAOrange, CA1477158673
- Lea Dominique Abadies, PATustin, CA1124754254
- Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
- Ramina Abbasi, PA-CSignal Hill, CA1093448300
- Ariel Abbott, PA-CStockton, CA1780334342
- Barrie Abbott, PA-CAnza, CA1861602575
- Elizabeth Abbott, PA-CSan Diego, CA1437540762
- Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
- Fatimeh Abdallah, P.A.-CNewport Beach, CA1487002218
Common questions
What is Leo Best, PA-C's NPI number?
Leo Best, PA-C's National Provider Identifier (NPI) is 1376723437, issued on Nov 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Leo Best, PA-C located?
The NPPES record lists a practice address at 145 Thunder Dr, Vista, CA, 92083. Phone: (760) 630-5487. Providers update this record themselves, so call before visiting.
How can I verify Leo Best, PA-C's license?
NPPES lists California license number PA15373, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Leo Best, PA-C prescribe under Medicare Part D?
In 2024, Leo Best, PA-C had 296 Medicare Part D claims for 197 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.