Dr Bruce Greenwald, MD - Medicare Internal Medicine in Ventura, CA

Dr Bruce Greenwald, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Ventura, California. He graduated from medical school in 1981 and has 43 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Southern California Permanente Medical Group and his current practice location is 888 S Hill Rd, Ventura, California. You can reach out to his office (for appointments etc.) via phone at (805) 477-6464.

Dr Bruce Greenwald is licensed to practice in California (license number G48134) 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 1619908829.

Contact Information

Dr Bruce Greenwald, MD
888 S Hill Rd,
Ventura, CA 93003-8400
(805) 477-6464
(805) 477-6498

Map and Direction




Physician's Profile

Full NameDr Bruce Greenwald
GenderMale
SpecialityInternal Medicine
Experience43 Years
Location888 S Hill Rd, 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 Bruce Greenwald graduated from medical school in 1981
  NPI Data:
  • NPI Number: 1619908829
  • Provider Enumeration Date: 07/05/2006
  • Last Update Date: 12/01/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2567548738
  • Enrollment ID: I20080327000807

Medical Identifiers

Medical identifiers for Dr Bruce Greenwald such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619908829NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology G48134 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southern California Permanente Medical Group60027291758172

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 Bruce Greenwald allows following entities to bill medicare on his behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316979834
PECOS PAC ID: 6002729175
Enrollment ID: O20040126000823

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 Bruce Greenwald 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 Bruce Greenwald, MD
2590 E Main St,
Ventura, CA 93003-2619

Ph: (805) 477-6464
Dr Bruce Greenwald, MD
888 S Hill Rd,
Ventura, CA 93003-8400

Ph: (805) 477-6464

Reviews and Comments


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Phone: 805-656-4311    Fax: 805-643-5020

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.