James Mase
Interventional Pain Medicine Physician · Santa Maria, CA
James Mase is an interventional pain medicine physician with a practice address in Santa Maria, California, and NPI 1972536688, issued on Jul 8, 2006. Check the license (California G55442, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Mase
- Primary taxonomy
- Interventional Pain Medicine Physician 208VP0014X
- License number
- G55442 CA
Self-reported in NPPES; status is on the state search - Practice location
- 525 Plaza Dr, Santa Maria, CA 93454
- Phone
- (805) 928-1731
- Enumerated
- Jul 8, 2006
- Record last updated
- Oct 30, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (805) 349-8160
- Medicaid ID
- 00G554421 CA
- Entity
- Type 1 · individual
8 nearest interventional pain medicine physician records → All 219 in California → Look up another NPI →
Also registered at 525 Plaza Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Miyagishima, MDFamily Medicine Physician1801870662
Verify James Mase in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G55442Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 83.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
James Mase among 219 interventional pain medicine physician records in California
James Mase is one of 219 interventional pain medicine physician records with a practice address in California. 87% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 55% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 76% of these records are
- Record last updated2014 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208VP0014X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Pain Medicine Physician providers in California
There are 219 interventional pain medicine physician records in California.
All 219 in California → Every provider in Santa Maria → Interventional Pain Medicine Physician nationwide →
The 8 interventional pain medicine physician records with the nearest ZIP codes
- Nathan Singer, M.D.Santa Maria, CA 934541114108016
- Denise Rubino, MDLompoc, CA 934361912145533
- Schuyler Rockwood, DOSan Luis Obispo, CA 934051841879079
- Rohit ChoudharyPalmdale, CA 935511033505607
- Kevin Kohan, D.O.Palmdale, CA 935511487776746
- Jay Lee, DOClovis, CA 936111255795597
- Jonathan Grossman, MDVisalia, CA 932911225242332
- Elizabeth Ngo, D.O.Visalia, CA 932771053605618
Common questions
What is James Mase's NPI number?
James Mase's National Provider Identifier (NPI) is 1972536688, issued on Jul 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Mase located?
The NPPES record lists a practice address at 525 Plaza Dr, Santa Maria, CA, 93454. Phone: (805) 928-1731. Providers update this record themselves, so call before visiting.
How can I verify James Mase's license?
NPPES lists California license number G55442, 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.
What is James Mase's MIPS final score?
The 2023 MIPS final score is 83.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.