Katherine Chang, NP - Medicare Family Medicine in Martinez, CA

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Katherine Chang, NP is a medicare enrolled "Family Medicine" physician in Martinez, California. Her current practice location is 1105 Haven St, Martinez, California. You can reach out to her office (for appointments etc.) via phone at (408) 603-4260.

Katherine Chang is licensed to practice in California (license number NP95010900) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1679357248.

Contact Information

Katherine Chang, NP
1105 Haven St,
Martinez, CA 94553-1862
(408) 603-4260
Not Available

Map and Direction




Physician's Profile

Full NameKatherine Chang
GenderFemale
SpecialityFamily Medicine
Location1105 Haven St, Martinez, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1679357248
  • Provider Enumeration Date: 08/23/2023
  • Last Update Date: 08/23/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8123473618
  • Enrollment ID: I20231019000063

Medical Identifiers

Medical identifiers for Katherine Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679357248NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine NP95010900 (California)Primary

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. Katherine Chang allows following entities to bill medicare on her behalf.
Entity NameBass Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174253405
PECOS PAC ID: 9032111281
Enrollment ID: O20070201000181

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. Katherine 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
Katherine Chang, NP
1105 Haven St,
Martinez, CA 94553-1862

Ph: (408) 603-4260		Katherine Chang, NP
1105 Haven St,
Martinez, CA 94553-1862

Ph: (408) 603-4260

Reviews and Comments


Family Medicine Doctors in Martinez, CA

Charlotte Standefer,
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2500 Alhambra Ave, Martinez, CA 94553
Phone: 925-370-5110    Fax: 925-370-5142
Clarisse Anne R. Wong, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 Muir Rd, Martinez, CA 94553
Phone: 925-372-1999    
Franz Wasserman,
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2500 Alhambra Ave, Martinez, CA 94553
Phone: 925-370-5110    Fax: 325-537-0514
Donald Widder,
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2500 Alhambra Ave, Martinez, CA 94553
Phone: 925-370-5110    Fax: 925-370-5142
Michelle Orengo-mcfarlane, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2500 Alhambra Ave, Martinez, CA 94553
Phone: 510-231-9400    Fax: 510-231-9401
David E Longstroth, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2500 Alhambra Ave, Martinez, CA 94553
Phone: 925-370-5200    
Elise Lewis,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2500 Alhambra Ave, Martinez, CA 94553
Phone: 925-370-5110    Fax: 925-370-5142

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.