Dr Janusz J Madej, MD - Medicare in Los Altos, CA

Dr Janusz J Madej, MD is a medicare enrolled "Internal Medicine" physician in Los Altos, California. His current practice location is 339 S San Antonio Rd Ste 1a, Los Altos, California. You can reach out to his office (for appointments etc.) via phone at (650) 529-1669.

Dr Janusz J Madej is licensed to practice in California (license number A69531) 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 1376616706.

Contact Information

Dr Janusz J Madej, MD
339 S San Antonio Rd Ste 1a,
Los Altos, CA 94022-3699
(650) 529-1669
(650) 529-1670

Map and Direction




Physician's Profile

Full NameDr Janusz J Madej
GenderMale
Speciality
Experience Years
Location339 S San Antonio Rd Ste 1a, Los Altos, 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 Janusz J Madej attended and graduated from in
  NPI Data:
  • NPI Number: 1376616706
  • Provider Enumeration Date: 11/15/2006
  • Last Update Date: 03/30/2024
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Dr Janusz J Madej such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1376616706NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A69531 (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. Dr Janusz J Madej 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 Janusz J Madej, MD
339 S San Antonio Rd Ste 1a,
Los Altos, CA 94022-3699

Ph: (650) 529-1669
Dr Janusz J Madej, MD
339 S San Antonio Rd Ste 1a,
Los Altos, CA 94022-3699

Ph: (650) 529-1669

Reviews and Comments


Internal Medicine Doctors in Los Altos, CA

Dr. Simon Anthony Humphries, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 811 Altos Oaks Dr, Suite 2, Los Altos, CA 94024
Phone: 650-917-6920    Fax: 650-917-6925
Paul Tang, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 370 Distel Circle, Los Altos, CA 94022
Phone: 650-254-5200    
Gina Serraiocco, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 370 Distel Cir, Los Altos, CA 94022
Phone: 650-254-5200    
Charles Tuchinda, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1965 Laver Ct, Los Altos, CA 94024
Phone: 617-930-6428    
Lailey Naomi Oliva, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 370 Distel Cir, Los Altos, CA 94022
Phone: 650-254-5200    
Ronda Macchello, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 370 Disel Cir, Los Altos, CA 95022
Phone: 650-254-5200    
Amy Muzaffar, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 370 Distel Cir, Los Altos, CA 94022
Phone: 650-254-5200    

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.