Dr William Edward Gilli, MD - Medicare Internal Medicine in Bakersfield, CA

Dr William Edward Gilli, MD is a medicare enrolled "Internal Medicine" physician in Bakersfield, California. He went to University Of Southern California Keck School Of Medicine and graduated in 1983 and has 41 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Mesa West Medical Inc and his current practice location is 8327 Brimhall Rd, Suite #704, Bakersfield, California. You can reach out to his office (for appointments etc.) via phone at (661) 617-6750.

Dr William Edward Gilli is licensed to practice in California (license number G53033) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1447257100.

Contact Information

Dr William Edward Gilli, MD
8327 Brimhall Rd, Suite #704,
Bakersfield, CA 93312-4048
(661) 617-6750
(661) 617-6760

Map and Direction




Physician's Profile

Full NameDr William Edward Gilli
GenderMale
SpecialityInternal Medicine
Experience41 Years
Location8327 Brimhall Rd, Bakersfield, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr William Edward Gilli attended and graduated from University Of Southern California Keck School Of Medicine in 1983
  NPI Data:
  • NPI Number: 1447257100
  • Provider Enumeration Date: 07/07/2005
  • Last Update Date: 10/31/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 2264528322
  • Enrollment ID: I20071019000596

Medical Identifiers

Medical identifiers for Dr William Edward Gilli such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1447257100NPI-NPPES
G53033OtherCACA LICENSE
GR0057501MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G53033 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health Home Care ServicesBakersfield, CAHome health agency
Around The Clock Home CareBakersfield, CAHome health agency
Bakersfield Community Hospice, IncBakersfield, CAHospice
Adventist Health BakersfieldBakersfield, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mesa West Medical Inc59918910532

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 William Edward Gilli allows following entities to bill medicare on his behalf.
Entity NameMesa West Medical Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821294596
PECOS PAC ID: 5991891053
Enrollment ID: O20071019000589
Entity NameKern County Hospital Authority
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376623538
PECOS PAC ID: 4688964521
Enrollment ID: O20160915002690

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 William Edward Gilli 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 William Edward Gilli, MD
8327 Brimhall Rd, Suite #704,
Bakersfield, CA 93312-4048

Ph: (661) 829-7677
Dr William Edward Gilli, MD
8327 Brimhall Rd, Suite #704,
Bakersfield, CA 93312-4048

Ph: (661) 617-6750

Reviews and Comments


Internal Medicine Doctors in Bakersfield, CA

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Sarah Dowda, NP
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Bruce G Dains, PAC
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Dr. Oscar W. Rico, M.D.
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Practice Location: 9001 Stockdale Hwy, 28 Hc, Bakersfield, CA 93311
Phone: 661-654-2395    

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).

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