Sean L Johnston, M.D., PH.D.
Individual provider Active NPI Vascular & Interventional Radiology Physician · Santa Ana, CA
NPI 1477581866 · NPPES record last updated May 18, 2026
Key facts
- NPI
- 1477581866
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Vascular & Interventional Radiology Physician 2085R0204X
- License
- A73716 (CA)
- Practice address
- 2414 S Fairview St Ste 202B
Santa Ana, CA 92704-5318 - Phone
- (805) 300-6761
- NPI assigned
- Jun 28, 2006
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 50
Hospital & facility affiliations 5
Medicare Care Compare profile
- Specialty
- Diagnostic Radiology
- Education
- Mayo Medical School, 1998
- Medicare assignment
- May accept Medicare assignment
- Group practices
- Willits Hospital Inc
Adventist Health Physicians Network
Hanford Community Hospital
Adventist Health Clearlake Hospital Inc.
Radiology Medical Group of WMMC
Reedley Community Hospital
Mawan Shuayto MD PC
Adventist Health Tulare
Practice addresses (Care Compare)
1 Marcela Dr
Willits, CA 95490-5769
Phone (707) 459-6801
111 Raley Blvd
Chico, CA 95928-8351
115 Mall Dr
Hanford, CA 93230-5786
Phone (559) 582-9000
15630 18TH Ave
Clearlake, CA 95422-9336
Phone (707) 994-6486
1720 E Cesar E Chavez Ave
Los Angeles, CA 90033-2414
Phone 21326850002533
3 Marcela Dr
Suite D
Willits, CA 95490-5769
Phone (707) 459-4220
309 W Beverly Blvd
Montebello, CA 90640-4308
Phone (323) 729-1222
372 W Cypress Ave
Reedley, CA 93654-2113
Phone (559) 638-8155
531 W College St
Pacific Alliance Medical Center
Los Angeles, CA 90012-2315
Phone (213) 624-8411
615 Pine St
Port Huron, MI 48060-5400
Phone (810) 989-0000
869 N Cherry St
Tulare, CA 93274-2207
Phone (559) 688-0821
Hospital & facility affiliations
- Adventist Health Hanford
- Adventist Health Tulare
- Adventist Health Reedley
- Adventist Health White Memorial
- Adventist Health Clearlake
Merit-based Incentive Payment System (MIPS)
- Final score
- 100 of 100
- Quality
- 100
- Promoting interoperability
- 96
- Improvement activities
- 40
- Cost
- 86.89
Merit-based Incentive Payment System (MIPS)
- Final score
- 90.74 of 100
- Quality
- 94
- Promoting interoperability
- 92
- Improvement activities
- 40
- Cost
- 65.12
Merit-based Incentive Payment System (MIPS)
- Final score
- 95.77 of 100
- Quality
- 81.54
- Promoting interoperability
- 100
- Improvement activities
- 40
Merit-based Incentive Payment System (MIPS)
- Final score
- 80.98 of 100
- Quality
- 73.31
- Promoting interoperability
- 92
- Improvement activities
- 40
- Cost
- 62
Merit-based Incentive Payment System (MIPS)
- Final score
- 88.16 of 100
- Quality
- 82.56
- Promoting interoperability
- 93
- Improvement activities
- 40
- Cost
- 69.49
Merit-based Incentive Payment System (MIPS)
- Final score
- 56.28 of 100
- Quality
- 52.13
- Improvement activities
- 0
- Cost
- 66.42
Merit-based Incentive Payment System (MIPS)
- Final score
- 89.41 of 100
- Quality
- 86.32
- Promoting interoperability
- 95
- Improvement activities
- 40
- Cost
- 66.55
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled (2 enrollments) in CA, MI
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20040326000662 | CA | Practitioner - Diagnostic Radiology | 0547152340 | Reassigns benefits to 12 organizations |
| I20200303002514 | MI | Practitioner - Diagnostic Radiology | 0547152340 | Reassigns benefits to 1 organization |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Doctor of Medicine, Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 49574 | CA | MD | Pharmacist |
| 73716 | CA | MD | Pharmacist |
| A73716 | CA | MD | Therapeutic Radiology Physician |
Practice roles (36 of 37)
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Pet Imaging of San Jose, LLC | Current |
Accepting new patients | |
| Ukiah Adventist Hospital | Current |
Accepting new patients | |
| Adventist Health Physicians Network | Current | Accepting new patients | |
| Adventist Health Clearlake Hospital Inc. | Current |
Accepting new patients | |
| Partners in Radiology L L C | Current |
Accepting new patients | |
| Radiology Medical Group of WMMC | Body Imaging | Current |
Accepting new patients |
| Reedley Community Hospital | Current |
Accepting new patients | |
| Adventist Health Mendocino Coast | Current |
Accepting new patients | |
| Willits Hospital Inc. | Current |
Accepting new patients | |
| Aptiva Health Imaging | Current |
Accepting new patients | |
| G Force LLC | Current |
Accepting new patients | |
| Vesta Telemedicine Solutions, PLLC | Body Imaging | Current |
Accepting new patients |
| Partners in Radiology L L C | Current |
Accepting new patients | |
| Monarch Diagnostic Services, Inc. | Current |
Accepting new patients | |
| Adventist Health Tulare | Current |
Accepting new patients | |
| Adventist Health Physicians Network | Current |
Accepting new patients | |
| Texas Imaging Partners, LLC | Current |
Accepting new patients | |
| Reedley Community Hospital | Current |
Accepting new patients | |
| Arizona Advanced Imaging Center LLC | Current |
Accepting new patients | |
| Adventist Health Physicians Network | Current |
Accepting new patients | |
| Hanford Community Hospital | Current |
Accepting new patients | |
| Adventist Health Mendocino Coast | Current |
Accepting new patients | |
| Ukiah Adventist Hospital | Diagnostic Radiology | Current |
Accepting new patients |
| MCHS Hospitals Inc | Past | Accepting new patients | |
| UCLA Radiology Medical Group | Body Imaging | Past | Accepting new patients |
| Allina Health System | Past | Accepting new patients | |
| Miispine | Diagnostic Radiology | Past | Accepting new patients |
| MCHS Hospitals Inc | Past | Accepting new patients | |
| Adventist Health Clearlake Hospital, Inc | Past | Accepting new patients | |
| Lutheran Charity Association | Past | Accepting new patients | |
| Vesta Telemedicine Solutions, PC | Body Imaging | Past | Accepting new patients |
| Memorial Hospital Inc | Past | Accepting new patients | |
| St. Croix Regional Medical Center | Past | Accepting new patients | |
| MCHS Hospitals Inc | Past | Accepting new patients | |
| MCHS Hospitals Inc | Past | Accepting new patients | |
| MCHS Hospitals Inc | Past | Accepting new patients |
Locations
111 Raley Blvd
Ste 160
Chico, CA 95928
Phone (530) 343-3868
111 Raley Blvd
Ste 140
Chico, CA 95928
Phone (530) 342-5776
15630 18th Ave
Clearlake, CA 95422
Phone (707) 995-5820
1415 Ross Ave
El Centro, CA 92243
Phone (760) 339-4045
700 River Dr
Fort Bragg, CA 95437
Phone (707) 961-1234
115 Mall Dr
Hanford, CA 93230
Phone (559) 537-0550
125 Mall Dr
Ste 305
Hanford, CA 93230
Phone (559) 537-0440
18351 Beach Blvd
Ste G
Huntington Beach, CA 92648
Phone (714) 847-0010
531 W College St
Los Angeles, CA 90012
Phone (213) 268-5000
1720 E Cesar E Chavez Ave
Ste 2
Los Angeles, CA 90033
1720 E Cesar E Chavez Ave
Los Angeles, CA 90033
Phone (323) 260-5781
372 W Cypress Ave
Reedley, CA 93654
Phone (559) 391-3110
1141 Rose Ave
Selma, CA 93662
Phone (559) 790-2800
2975 Sycamore Dr
Simi Valley, CA 93065
Phone (805) 522-2500
869 N Cherry St
Tulare, CA 93274
Phone (559) 326-2800
275 Hospital Dr
Ukiah, CA 95482
Phone (707) 462-7900
1 Marcela Dr
Willits, CA 95490
Phone (707) 456-3001
5700 Southwyck Blvd
Toledo, OH 43614
Networks
- Freedom Health HMO Network
Interoperability endpoints
- https://fhir-myrecord.cerner.com/r4/29a5ccea-f4ab-4447-a191-56b20695970f/
- https://fhir-myrecord.cerner.com/r4/a36dfa71-4dd3-4608-9cfb-c7a63ade5531/
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Vascular & Interventional Radiology Physician | 2085R0204X | A73716 | CA | Yes |
| Therapeutic Radiology Physician | 2085R0203X | A73716 | CA | |
| Diagnostic Radiology Physician | 2085R0202X | A73716 | CA | |
| Body Imaging Physician | 2085B0100X | A73716 | CA | |
| Neuroradiology Physician | 2085N0700X | A73716 | CA | |
| Magnetic Resonance Imaging Radiologic Technologist | 2471M1202X | 49574 | CA | |
| Pediatric Radiology Physician | 2085P0229X | A73716 | CA | |
| Diagnostic Ultrasound Physician | 2085U0001X | A73716 | CA |
Addresses
Primary practice location
2414 S Fairview St Ste 202B
Santa Ana, CA 92704-5318
Mailing address
631 Country Club Dr
Burbank, CA 91501-1121
Phone (818) 416-5037
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| A73716 | Other | CA | MEDICAL LIC |
Other providers in Santa Ana, CA
- Claire Johnston
- Heaven Nikol Johnston
- Leanne Johnston
- Lynsey Johnston
- Marlow Johnston
- Jennifer E Jolin
- Rosalinda Jolivette
- Naveen Jonathan
- Chad Jones
- Charli Selena Jones
All providers in Santa Ana, CA · Vascular & Interventional Radiology Physician in California
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on May 18, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.