Dr Jennifer Sugay Dionisio, DO - Medicare Family Practice in Fairfield, CA

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Dr Jennifer Sugay Dionisio, DO is a medicare enrolled "Family Medicine" physician in Fairfield, California. She went to Touro Un College Of Osteopathic Medicine, Vallejo and graduated in 2022 and has 4 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice Permanente Medical Group Inc and her current practice location is 1550 Gateway Blvd, Fairfield, California. You can reach out to her office (for appointments etc.) via phone at (707) 427-4000.

Dr Jennifer Sugay Dionisio is licensed to practice in California (license number 20A21920) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1235877150.

Contact Information

Dr Jennifer Sugay Dionisio, DO
1550 Gateway Blvd,
Fairfield, CA 94533-6900
(707) 427-4000
Not Available

Map and Direction




Physician's Profile

Full NameDr Jennifer Sugay Dionisio
GenderFemale
SpecialityFamily Practice
Experience4 Years
Location1550 Gateway Blvd, Fairfield, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Jennifer Sugay Dionisio attended and graduated from Touro Un College Of Osteopathic Medicine, Vallejo in 2022
  NPI Data:
  • NPI Number: 1235877150
  • Provider Enumeration Date: 05/20/2022
  • Last Update Date: 09/09/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 4284136177
  • Enrollment ID: I20250909001441

Medical Identifiers

Medical identifiers for Dr Jennifer Sugay Dionisio such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1235877150NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 20A21920 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation Hospital - VacavilleVacaville, CAHospital
Kaiser Foundation Hospital And Rehab CenterVallejo, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc892191022510928

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 Jennifer Sugay Dionisio allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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 Jennifer Sugay Dionisio 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 Jennifer Sugay Dionisio, DO
1550 Gateway Blvd,
Fairfield, CA 94533-6900

Ph: Not Available		Dr Jennifer Sugay Dionisio, DO
1550 Gateway Blvd,
Fairfield, CA 94533-6900

Ph: (707) 427-4000

Reviews and Comments


Family Medicine Doctors in Fairfield, CA

Michael Balbin Santos, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2720 Low Ct, Fairfield, CA 94534
Phone: 707-427-4900    Fax: 707-432-2533
Mary Moreno, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1200 B Gale Wilson Blvd, Fairfield, CA 94533
Phone: 707-646-5000    
Brett Rasmussen, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 101 Bodin Cir, Fairfield, CA 94535
Phone: 707-423-3000    
Johanna M Cardoza, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1550 Gateway Blvd, Fairfield, CA 94533
Phone: 707-427-4000    
Dr. Melissa G. Pearce, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2201 Courage Dr, Fairfield, CA 94533
Phone: 707-784-2010    
Nicole D Arthur, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2720 Low Ct, Fairfield, CA 94534
Phone: 707-427-4900    
Dr. Rebekah O Ayodele, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1620 Pennsylvania Ave, Suite C, Fairfield, CA 94533
Phone: 707-428-4878    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

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.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.