Erwin B Clahassey, MD - Pathology in Ventura, CA

Erwin B Clahassey, MD is a Pathology - Anatomic Pathology & Clinical Pathology physician based in Ventura, California. Erwin B Clahassey is licensed to practice in California (license number C35210) and his current practice location is 147 N Brent St, Ventura, California. He can be reached at his office (for appointments etc.) via phone at (805) 652-5023.

NPI number for Erwin B Clahassey is 1932193646 and his current mailing address is Po Box 2311, Chatsworth, California. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1932193646.

Contact Information

Erwin B Clahassey, MD
147 N Brent St,
Ventura, CA 93003-2809
(805) 652-5023
(805) 643-8511

Map and Direction




Physician's Profile

Full NameErwin B Clahassey
GenderMale
SpecialityPathology - Anatomic Pathology & Clinical Pathology
Location147 N Brent St, Ventura, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1932193646
  • Provider Enumeration Date: 09/08/2005
  • Last Update Date: 10/06/2024

Medical Identifiers

Medical identifiers for Erwin B Clahassey such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1932193646NPI-NPPES
00C352100MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology C35210 (California)Primary

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. Erwin B Clahassey is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Erwin B Clahassey, MD
Po Box 2311,
Chatsworth, CA 91313-2311

Ph: (818) 718-9500
Erwin B Clahassey, MD
147 N Brent St,
Ventura, CA 93003-2809

Ph: (805) 652-5023

Reviews and Comments


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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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