Dr Michael Terrence O'brien, MD - Medicare Family Practice in Castro Valley, CA

Dr Michael Terrence O'brien, MD is a medicare enrolled "Family Medicine" physician in Castro Valley, California. He went to Boston University School Of Medicine and graduated in 1986 and has 38 years of diverse experience with area of expertise as Family Practice. His current practice location is 20100 Lake Chabot Rd, Castro Valley, California. You can reach out to his office (for appointments etc.) via phone at (510) 581-7677.

Dr Michael Terrence O'brien is licensed to practice in California (license number G61152) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1821181215.

Contact Information

Dr Michael Terrence O'brien, MD
20100 Lake Chabot Rd,
Castro Valley, CA 94546-5306
(510) 581-7677
Not Available

Map and Direction




Physician's Profile

Full NameDr Michael Terrence O'brien
GenderMale
SpecialityFamily Practice
Experience38 Years
Location20100 Lake Chabot Rd, Castro Valley, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Michael Terrence O'brien attended and graduated from Boston University School Of Medicine in 1986
  NPI Data:
  • NPI Number: 1821181215
  • Provider Enumeration Date: 09/30/2006
  • Last Update Date: 08/21/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 5991994873
  • Enrollment ID: I20110107000111

Medical Identifiers

Medical identifiers for Dr Michael Terrence O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821181215NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine G61152 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Eden Medical CenterCastro valley, CAHospital

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 Michael Terrence O'brien 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 Michael Terrence O'brien, MD
20100 Lake Chabot Rd,
Castro Valley, CA 94546-5306

Ph: (510) 581-7677
Dr Michael Terrence O'brien, MD
20100 Lake Chabot Rd,
Castro Valley, CA 94546-5306

Ph: (510) 581-7677

Reviews and Comments


Family Medicine Doctors in Castro Valley, CA

Naomi Bitow, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 20101 Lake Chabot Rd Fl 3, Castro Valley, CA 94546
Phone: 510-886-3400    
Rinku Shrivastava, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 19845 Lake Chabot Rd Ste 205, Castro Valley, CA 94546
Phone: 510-582-6424    Fax: 510-582-6462
Narjes Ferjani, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 20642 John Dr, Castro Valley, CA 94546
Phone: 510-581-2559    Fax: 510-581-5396
Dr. Daisy Daixin Maron, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 20103 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-727-3256    Fax: 510-727-3107
Dr. Parviz Sagheb Talebi, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 20700 Lake Chabot Rd, Suite 107, Castro Valley, CA 94546
Phone: 510-889-1922    Fax: 510-889-5964
Dr. Karen A Van Zino, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4061 E Castro Valley Blvd, #403, Castro Valley, CA 94552
Phone: 925-484-4100    Fax: 510-581-5773
Huong Nguyen Dang, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 20101 Lake Chabot Rd, 3rd Floor, Castro Valley, CA 94546
Phone: 510-247-6495    Fax: 510-247-6495

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.