Dr Daisy Daixin Maron, MD - Medicare Family Practice in Castro Valley, CA

Dr Daisy Daixin Maron, MD is a medicare enrolled "Hospitalist" physician in Castro Valley, California. She graduated from medical school in 1995 and has 29 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice Sutter Bay Medical Foundation and her current practice location is 20103 Lake Chabot Rd, Castro Valley, California. You can reach out to her office (for appointments etc.) via phone at (510) 727-3256.

Dr Daisy Daixin Maron is licensed to practice in California (license number A88109) 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 1275565954.

Contact Information

Dr Daisy Daixin Maron, MD
20103 Lake Chabot Rd,
Castro Valley, CA 94546-5305
(510) 727-3256
(510) 727-3107

Map and Direction




Physician's Profile

Full NameDr Daisy Daixin Maron
GenderFemale
SpecialityFamily Practice
Experience29 Years
Location20103 Lake Chabot Rd, 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 Daisy Daixin Maron graduated from medical school in 1995
  NPI Data:
  • NPI Number: 1275565954
  • Provider Enumeration Date: 07/06/2006
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3971533902
  • Enrollment ID: I20050818000641

Medical Identifiers

Medical identifiers for Dr Daisy Daixin Maron such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275565954NPI-NPPES
CA88109OtherCASTATE LICENSE
00A881090MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A88109 (California)Secondary
208M00000XHospitalist A88109 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Eden Medical CenterCastro valley, CAHospital
Alta Bates Summit Medical CenterOakland, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sutter Bay Medical Foundation42845387782995

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 Daisy Daixin Maron allows following entities to bill medicare on her behalf.
Entity NameSutter Bay Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013950807
PECOS PAC ID: 4284538778
Enrollment ID: O20031125000909

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 Daisy Daixin Maron 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 Daisy Daixin Maron, MD
3687 Mt Diablo Blvd Ste 200,
Lafayette, CA 94549-3746

Ph: (916) 485-6975
Dr Daisy Daixin Maron, MD
20103 Lake Chabot Rd,
Castro Valley, CA 94546-5305

Ph: (510) 727-3256

Reviews and Comments


Hospitalist Doctors in Castro Valley, CA

Rajbir Sidhu, M.D.
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Indu Michael, M.D.
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Arash Foroutani, M.D.
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Rachna Bali, DO
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Phone: 510-889-5082    Fax: 510-733-0878
Nazia Mir, MD
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Practice Location: 20101 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-727-3256    
Alina Haq, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 20103 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-727-3256    
Dr. Rebecca M Lekim, D.O
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 20101 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-727-3256    

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.