Dr Geoffrey William Horn, DO - Medicare Diagnostic Radiology in Saint Helena, CA

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Dr Geoffrey William Horn, DO is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Saint Helena, California. He graduated from medical school in 2004 and has 21 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice Adventist Health Clearlake Hospital Inc., Adventist Health Physicians Network, Adventist Health Mendocino Coast, Ukiah Adventist Hospital, Willits Hospital Inc and his current practice location is 10 Woodland Rd, Saint Helena, California. You can reach out to his office (for appointments etc.) via phone at (707) 963-6430.

Dr Geoffrey William Horn is licensed to practice in California (license number 20A11701) 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 1013117977.

Contact Information

Dr Geoffrey William Horn, DO
10 Woodland Rd,
Saint Helena, CA 94574-9554
(707) 963-6430
(707) 256-3508

Map and Direction




Physician's Profile

Full NameDr Geoffrey William Horn
GenderMale
SpecialityDiagnostic Radiology
Experience21 Years
Location10 Woodland Rd, Saint Helena, 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 Geoffrey William Horn graduated from medical school in 2004
  NPI Data:
  • NPI Number: 1013117977
  • Provider Enumeration Date: 07/19/2007
  • Last Update Date: 04/25/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 5395875934
  • Enrollment ID: I20110819000170

Medical Identifiers

Medical identifiers for Dr Geoffrey William Horn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013117977NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology 4369 (Oklahoma)Secondary
2085R0202XRadiology - Diagnostic Radiology 2063 (Tennessee)Secondary
2085R0202XRadiology - Diagnostic Radiology 20A11701 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health Ukiah ValleyUkiah, CAHospital
Adventist Health ClearlakeClearlake, CAHospital
Adventist Health Howard MemorialWillits, CAHospital
Mendocino Coast District HospitalFort bragg, CAHospital
Santa Rosa Memorial HospitalSanta rosa, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Adventist Health Clearlake Hospital Inc.307242119775
Adventist Health Physicians Network3274580972572
Adventist Health Mendocino Coast367899076948
Ukiah Adventist Hospital6406816123109
Willits Hospital Inc741694069755

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 Geoffrey William Horn 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 NameSt. Helena Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1720078082
PECOS PAC ID: 8729059878
Enrollment ID: O20040803001176
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

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 Geoffrey William Horn 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 Geoffrey William Horn, DO
Po Box 3222,
Napa, CA 94558-0293

Ph: (707) 261-7821		Dr Geoffrey William Horn, DO
10 Woodland Rd,
Saint Helena, CA 94574-9554

Ph: (707) 963-6430

Reviews and Comments


Radiology Doctors in Saint Helena, CA

Dr. David R Racker, M.D.
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Practice Location: 10 Woodland Rd, Saint Helena, CA 94574
Phone: 707-963-6430    Fax: 707-256-3508
William Duge, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 10 Woodland Rd, Saint Helena, CA 94574
Phone: 707-261-7821    Fax: 707-256-3508
David John Tate, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 10 Woodland Rd, Saint Helena, CA 94574
Phone: 707-967-5721    Fax: 707-967-5722
Stephen J Banks, MD
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 10 Woodland Rd, Saint Helena, CA 94574
Phone: 707-967-5721    Fax: 707-967-5722

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.