Dr John Hollister Thacher, MD - Medicare Dermatology in Ventura, CA

Dr John Hollister Thacher, MD is a medicare enrolled "Dermatology - Dermatopathology" physician in Ventura, California. He went to University Of Southern California Keck School Of Medicine and graduated in 1969 and has 55 years of diverse experience with area of expertise as Dermatology. His current practice location is 227 N Dos Caminos Ave, Ventura, California. You can reach out to his office (for appointments etc.) via phone at (805) 648-6969.

Dr John Hollister Thacher is licensed to practice in California (license number G18881) 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 1205962032.

Contact Information

Dr John Hollister Thacher, MD
227 N Dos Caminos Ave,
Ventura, CA 93003-1660
(805) 648-6969
(805) 648-3762

Map and Direction




Physician's Profile

Full NameDr John Hollister Thacher
GenderMale
SpecialityDermatology
Experience55 Years
Location227 N Dos Caminos Ave, Ventura, 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 John Hollister Thacher attended and graduated from University Of Southern California Keck School Of Medicine in 1969
  NPI Data:
  • NPI Number: 1205962032
  • Provider Enumeration Date: 02/26/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4486784006
  • Enrollment ID: I20100608000864

Medical Identifiers

Medical identifiers for Dr John Hollister Thacher such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205962032NPI-NPPES
ZZZ71761ZOtherCABLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ND0900XDermatology - Dermatopathology G18881 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Community Memorial Hospital San BuenaventuraVentura, CAHospital

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 John Hollister Thacher allows following entities to bill medicare on his behalf.
Entity NameVentura Dermatology Medical Clinic, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548286701
PECOS PAC ID: 3971530320
Enrollment ID: O20050718000962

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 John Hollister Thacher 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 John Hollister Thacher, MD
1467 Grand Ave,
Ojai, CA 93023-9617

Ph: (805) 648-6969
Dr John Hollister Thacher, MD
227 N Dos Caminos Ave,
Ventura, CA 93003-1660

Ph: (805) 648-6969

Reviews and Comments


Dermatology Doctors in Ventura, CA

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Phone: 805-948-6920    Fax: 805-948-1501
Dr. Fred Alan Werber, M.D.
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Phone: 805-648-1875    Fax: 805-642-1824
Robert R Jordan, M.D.
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Practice Location: 3400 Loma Vista Rd, Suite 1, Ventura, CA 93003
Phone: 805-644-9321    Fax: 805-644-9320

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.