Sean L. Johnston, M.D., PH.D.
Vascular & Interventional Radiology Physician · Santa Ana, CA
Sean L. Johnston, M.D., PH.D. is a vascular & interventional radiology physician with a practice address in Santa Ana, California, and NPI 1477581866, issued on Jun 28, 2006. Check the license (California A73716, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sean L. Johnston
- Credential
- M.D., PH.D.
- Primary taxonomy
- Vascular & Interventional Radiology Physician 2085R0204X
- License numbers
- A73716 CA
49574 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2414 S Fairview St Ste 202B, Santa Ana, CA 92704
- Phone
- (805) 300-6761
- Enumerated
- Jun 28, 2006
- Record last updated
- May 18, 2026
- Medicare enrollment
- Enrolled (PECOS I20040326000662); may accept Medicare assignment
- Medical or professional school
- Mayo Medical School, 1998
- Entity
- Type 1 · individual
8 nearest vascular & interventional radiology physician records → All 599 in California → Look up another NPI →
Verify Sean L. Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73716Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
8 hospitals and group practices
- Adventist Health TulareTulare, CA · Acute Care Hospitals3 of 5 stars
- Adventist Health Clearlake Hospital Inc.Clearlake, CA
- Adventist Health Physicians NetworkChico, CA
- Hanford Community HospitalHanford, CA
- Mawan Shuayto MD PCPort Huron, MI
- Radiology Medical Group OF WmmcLos Angeles, CA
- Reedley Community HospitalReedley, CA
- Willits Hospital IncWillits, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Sean L. Johnston among 599 vascular & interventional radiology physician records in California
Sean L. Johnston, M.D., PH.D. is one of 599 vascular & interventional radiology physician records with a practice address in California. 88% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 66% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated1998 · median 2007 among the 497 with a school on file
- Record last updated2026 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0204X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular & Interventional Radiology Physician providers in California
There are 599 vascular & interventional radiology physician records in California.
All 599 in California → Every provider in Santa Ana → Vascular & Interventional Radiology Physician nationwide →
The 8 vascular & interventional radiology physician records with the nearest ZIP codes
- Ivan Babin, M.D.Mission Viejo, CA 926911134461486
- Jimmy Ton, M.D.Mission Viejo, CA 926911083032841
- Alexander Misono, MD, MBANewport Beach, CA 926631992068357
- Trushar Patel, M.D.Newport Beach, CA 926631982858809
- Christopher Baker, M.D.Newport Beach, CA 926601013059872
- Gaurav Goswami, M.D.Newport Beach, CA 926601376617829
- Todd Harris, MDNewport Beach, CA 926601710980677
- Edward Neymark, MDNewport Beach, CA 926601447368022
Common questions
What is Sean L. Johnston, M.D., PH.D.'s NPI number?
Sean L. Johnston, M.D., PH.D.'s National Provider Identifier (NPI) is 1477581866, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sean L. Johnston, M.D., PH.D. located?
The NPPES record lists a practice address at 2414 S Fairview St Ste 202B, Santa Ana, CA, 92704. Phone: (805) 300-6761. Providers update this record themselves, so call before visiting.
How can I verify Sean L. Johnston, M.D., PH.D.'s license?
NPPES lists California license number A73716, 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 Sean L. Johnston, M.D., PH.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.