Kay Wen Chang, MD - Medicare in Palo Alto, CA

Kay Wen Chang, MD is a medicare enrolled "Otolaryngology - Pediatric Otolaryngology" physician in Palo Alto, California. His current practice location is 725 Welch Rd, Palo Alto, California. You can reach out to his office (for appointments etc.) via phone at (650) 497-8000.

Kay Wen Chang is licensed to practice in California (license number G85741) 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 1649318577.

Contact Information

Kay Wen Chang, MD
725 Welch Rd,
Palo Alto, CA 94304-1601
(650) 497-8000
Not Available

Map and Direction




Physician's Profile

Full NameKay Wen Chang
GenderMale
Speciality
Experience Years
Location725 Welch Rd, Palo Alto, 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:
  • Kay Wen Chang attended and graduated from in
  NPI Data:
  • NPI Number: 1649318577
  • Provider Enumeration Date: 02/02/2007
  • Last Update Date: 04/28/2024
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Kay Wen Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649318577NPI-NPPES
00G857410OtherCAMEDICAL RENDERING ID #

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Y00000XOtolaryngology G85741 (California)Secondary
207YP0228XOtolaryngology - Pediatric Otolaryngology G85741 (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. Kay Wen Chang 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
Kay Wen Chang, MD
801 Welch Rd,
Palo Alto, CA 94304-1611

Ph: (650) 736-1445
Kay Wen Chang, MD
725 Welch Rd,
Palo Alto, CA 94304-1601

Ph: (650) 497-8000

Reviews and Comments


Otolaryngology Doctors in Palo Alto, CA

Shannon Wu, MD
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 801 Welch Rd, Palo Alto, CA 94304
Phone: 650-723-5281    
Michael Mccaffrey, MD
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 795 El Camino Real, Palo Alto, CA 94301
Phone: 650-321-4121    
Dr. Dong Kyoo Richard Kang, MD
Otolaryngology
Medicare: Medicare Enrolled
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Brittany Leader,
Otolaryngology
Medicare: Medicare Enrolled
Practice Location: 101 Addison Ave, Palo Alto, CA 94301
Phone: 650-433-8621    Fax: 650-434-0061
Tulio Alberto Valdez, MD
Otolaryngology
Medicare: Medicare Enrolled
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Dylan Kar-shuen Chan, M.D., PH.D.
Otolaryngology
Medicare: Medicare Enrolled
Practice Location: 801 Welch Rd, Palo Alto, CA 94304
Phone: 650-723-6661    
Seth Joseph Davis, MD
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Palo Alto, CA 94304
Phone: 650-723-4000    

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.