Dr Jaya Karnani, MD - Medicare Family Practice in Castro Valley, CA

Dr Jaya Karnani, MD is a medicare enrolled "Family Medicine" physician in Castro Valley, California. She graduated from medical school in 2001 and has 23 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice University Healthcare Alliance and her current practice location is 20642 John Dr, Castro Valley, California. You can reach out to her office (for appointments etc.) via phone at (510) 785-5000.

Dr Jaya Karnani is licensed to practice in California (license number A89868) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1457309783.

Contact Information

Dr Jaya Karnani, MD
20642 John Dr,
Castro Valley, CA 94546-5103
(510) 785-5000
Not Available

Map and Direction




Physician's Profile

Full NameDr Jaya Karnani
GenderFemale
SpecialityFamily Practice
Experience23 Years
Location20642 John Dr, Castro Valley, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Jaya Karnani graduated from medical school in 2001
  NPI Data:
  • NPI Number: 1457309783
  • Provider Enumeration Date: 05/05/2006
  • Last Update Date: 12/07/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 5799744090
  • Enrollment ID: I20051215000269

Medical Identifiers

Medical identifiers for Dr Jaya Karnani such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457309783NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VX0000XObstetrics & Gynecology - Obstetrics A89868 (California)Secondary
207Q00000XFamily Medicine A89868 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Eden Medical CenterCastro valley, CAHospital
Stanford Health CareStanford, CAHospital
St Rose HospitalHayward, CAHospital
Stanford Health Care - ValleycarePleasanton, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Healthcare Alliance6305748799341

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 Jaya Karnani allows following entities to bill medicare on her behalf.
Entity NameUniversity Healthcare Alliance
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760531198
PECOS PAC ID: 6305748799
Enrollment ID: O20040126000292

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 Jaya Karnani 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 Jaya Karnani, MD
20642 John Dr,
Castro Valley, CA 94546-5103

Ph: (510) 785-5000
Dr Jaya Karnani, MD
20642 John Dr,
Castro Valley, CA 94546-5103

Ph: (510) 785-5000

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
Elmer Jason Ocampo Grande, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 20101 Lake Chabot Rd Fl 3, Castro Valley, CA 94546
Phone: 510-886-3400    Fax: 510-506-7772
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. Bhoomika Ramrao Kamath, 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

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.