Dr Sean L Johnston, MD, PHD - Medicare Diagnostic Radiology in Santa Ana, CA

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Dr Sean L Johnston, MD, PHD is a medicare enrolled "Radiology - Vascular & Interventional Radiology" physician in Santa Ana, California. He went to Mayo Medical School and graduated in 1998 and has 28 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice 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 and his current practice location is 2414 S Fairview St Ste 202b, Santa Ana, California. You can reach out to his office (for appointments etc.) via phone at (805) 300-6761.

Dr Sean L Johnston is licensed to practice in California (license number A73716) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1477581866.

Contact Information

Dr Sean L Johnston, MD, PHD
2414 S Fairview St Ste 202b,
Santa Ana, CA 92704-5318
(805) 300-6761
Not Available

Map and Direction




Physician's Profile

Full NameDr Sean L Johnston
GenderMale
SpecialityDiagnostic Radiology
Experience28 Years
Location2414 S Fairview St Ste 202b, Santa Ana, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Sean L Johnston attended and graduated from Mayo Medical School in 1998
  NPI Data:
  • NPI Number: 1477581866
  • Provider Enumeration Date: 06/28/2006
  • Last Update Date: 05/18/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 0547152340
  • Enrollment ID: I20040326000662

Medical Identifiers

Medical identifiers for Dr Sean L Johnston such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1477581866NPI-NPPES
A73716OtherCAMEDICAL LIC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0204XRadiology - Vascular & Interventional Radiology A73716 (California)Primary
2085R0203XRadiology - Therapeutic Radiology A73716 (California)Secondary
2085R0202XRadiology - Diagnostic Radiology A73716 (California)Secondary
2085B0100XRadiology - Body Imaging A73716 (California)Secondary
2085N0700XRadiology - Neuroradiology A73716 (California)Secondary
2471M1202XRadiologic Technologist - Magnetic Resonance Imaging 49574 (California)Secondary
2085P0229XRadiology - Pediatric Radiology A73716 (California)Secondary
2085U0001XRadiology - Diagnostic Ultrasound A73716 (California)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health HanfordHanford, CAHospital
Adventist Health ReedleyReedley, CAHospital
Adventist Health TulareTulare, CAHospital
White Memorial Medical CenterLos angeles, CAHospital
Adventist Health ClearlakeClearlake, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Willits Hospital Inc741694069768
Adventist Health Physicians Network3274580972654
Hanford Community Hospital741686837761
Adventist Health Clearlake Hospital Inc.307242119787
Radiology Medical Group Of Wmmc024424786429
Reedley Community Hospital094146098445
Mawan Shuayto Md Pc30727645969
Adventist Health Tulare438598875741

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Sean L Johnston allows following entities to bill medicare on his behalf.
Entity NameHanford Community Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538141627
PECOS PAC ID: 7416868377
Enrollment ID: O20040325000272
Entity NameWillits Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356339543
PECOS PAC ID: 7416940697
Enrollment ID: O20040405000843
Entity NameUkiah Adventist Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235120676
PECOS PAC ID: 6406816123
Enrollment ID: O20041015000818
Entity NameAdventist Health Clearlake Hospital Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124018031
PECOS PAC ID: 3072421197
Enrollment ID: O20041112000573
Entity NameAdventist Health Physicians Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063718583
PECOS PAC ID: 3274580972
Enrollment ID: O20050407000633
Entity NameRadiology Medical Group Of Wmmc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831123868
PECOS PAC ID: 0244247864
Enrollment ID: O20060307000489
Entity NameAdventist Health Tulare
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801366711
PECOS PAC ID: 4385988757
Enrollment ID: O20201221001163
Entity NameReedley Community Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336167550
PECOS PAC ID: 0941460984
Enrollment ID: O20201224000078
Entity NameAdventist Health Mendocino Coast
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538113725
PECOS PAC ID: 3678990769
Enrollment ID: O20220620001667
Entity NameVesta Telemedicine Solutions Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952902116
PECOS PAC ID: 9638585706
Enrollment ID: O20230524002037

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Sean L Johnston is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Sean L Johnston, MD, PHD
631 Country Club Dr,
Burbank, CA 91501-1121

Ph: (818) 416-5037		Dr Sean L Johnston, MD, PHD
2414 S Fairview St Ste 202b,
Santa Ana, CA 92704-5318

Ph: (805) 300-6761

Reviews and Comments


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Mark Geoffery Stein, M.D.
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Samuel L Kipper, M.D.
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Dr. Ernest Ngo, M.D.
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Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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