Irina Defischer, MD - Family Medicine in Petaluma, CA

Irina Defischer, MD is a Family Medicine physician based in Petaluma, California. Irina Defischer is licensed to practice in California (license number A40015) and her current practice location is 3900 Lakeville Hwy, Petaluma, California. She can be reached at her office (for appointments etc.) via phone at (707) 765-3900.

NPI number for Irina Defischer is 1770635575 and her current mailing address is 1800 Harrison St Fl 7, Oakland, California. She does not participate in medicare program and thus does not accept medicare assignments. Her NPI Number is 1770635575.

Contact Information

Irina Defischer, MD
3900 Lakeville Hwy,
Petaluma, CA 94954-5698
(707) 765-3900
Not Available

Map and Direction




Physician's Profile

Full NameIrina Defischer
GenderFemale
SpecialityFamily Medicine
Location3900 Lakeville Hwy, Petaluma, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. She may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1770635575
  • Provider Enumeration Date: 01/18/2007
  • Last Update Date: 07/08/2007

Medical Identifiers

Medical identifiers for Irina Defischer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1770635575NPI-NPPES
00A400150MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A40015 (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. Irina Defischer 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
Irina Defischer, MD
1800 Harrison St Fl 7,
Oakland, CA 94612-3429

Ph: (510) 625-6262
Irina Defischer, MD
3900 Lakeville Hwy,
Petaluma, CA 94954-5698

Ph: (707) 765-3900

Reviews and Comments


Family Medicine Doctors in Petaluma, CA

Daniel G White, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 3900 Lakeville Hwy, Petaluma, CA 94954
Phone: 707-765-3900    
Dr. Lana Ngoc Nguyen, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3835 Cypress Dr, Suite 102, Petaluma, CA 94954
Phone: 707-765-2425    Fax: 707-765-3974
Dr. Andrew Burns Ashcroft, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7510
Audra Lehman, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1301 Southpoint Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7570
Kelly Pfeifer, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1301 Southpoint Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7570
Dr. Lisa Feth Pearson, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7620
Dr. Leah Beth Rorvig, M.D., M.S.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone: 707-559-7500    Fax: 707-559-7620

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.