Mark Mason Haley, PA
Physician Assistant · San Luis Obispo, CA
Mark Mason Haley, PA is a physician assistant with a practice address in San Luis Obispo, California, and NPI 1558475699, issued on Aug 18, 2006. Check the license (California PA17394, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Mason Haley
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA17394 CA
Self-reported in NPPES; status is on the state search - Practice location
- One Grand Ave, San Luis Obispo, CA 93407
- Phone
- (805) 756-1211
- Enumerated
- Aug 18, 2006
- Record last updated
- Mar 12, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Mark Mason Haley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA17394Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $368.96
4 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mark Mason Haley among 14,451 physician assistant records in California
Mark Mason Haley, PA is one of 14,451 physician assistant records with a practice address in California. 75% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2010 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 physician assistant records list a practice address in San Luis Obispo
They are 58 of the 3,403 NPPES records with a practice address in San Luis Obispo, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in San Luis Obispo → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Paul Brylewski, P.A.San Luis Obispo, CA 934071699704858
- Lisa Flynn, PA-CSan Luis Obispo, CA 934071649538034
- Valerie Monge, PASan Luis Obispo, CA 934071356548051
- Morgan Anderson, PA-CSan Luis Obispo, CA 934051578023040
- Brittany Bell, PA-CSan Luis Obispo, CA 934051972047587
- Lisa Dimodica, PASan Luis Obispo, CA 934051669617015
- Benjamin Frimmer, MS, PA-CSan Luis Obispo, CA 934051104374883
- Brad Goolsby, PA-CSan Luis Obispo, CA 934051962061184
Common questions
What is Mark Mason Haley, PA's NPI number?
Mark Mason Haley, PA's National Provider Identifier (NPI) is 1558475699, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Mason Haley, PA located?
The NPPES record lists a practice address at One Grand Ave, San Luis Obispo, CA, 93407. Phone: (805) 756-1211. Providers update this record themselves, so call before visiting.
How can I verify Mark Mason Haley, PA's license?
NPPES lists California license number PA17394, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.