Michael C Chase, MD - Medicare Internal Medicine in Larkspur, CA

Michael C Chase, MD is a medicare enrolled "Internal Medicine" physician in Larkspur, California. He went to New York Medical College and graduated in 1972 and has 52 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Regents Univ Of California Ucsf and his current practice location is 2 Bon Air Rd Ste 150, Larkspur, California. You can reach out to his office (for appointments etc.) via phone at (415) 945-7800.

Michael C Chase is licensed to practice in California (license number G25829) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1457423105.

Contact Information

Michael C Chase, MD
2 Bon Air Rd Ste 150,
Larkspur, CA 94939-1142
(415) 945-7800
(415) 924-6605

Map and Direction




Physician's Profile

Full NameMichael C Chase
GenderMale
SpecialityInternal Medicine
Experience52 Years
Location2 Bon Air Rd Ste 150, Larkspur, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Michael C Chase attended and graduated from New York Medical College in 1972
  NPI Data:
  • NPI Number: 1457423105
  • Provider Enumeration Date: 11/15/2006
  • Last Update Date: 12/04/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 2365580149
  • Enrollment ID: I20091116000505

Medical Identifiers

Medical identifiers for Michael C Chase such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457423105NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G25829 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Marinhealth Medical CenterGreenbrae, CAHospital
Novato Community HospitalNovato, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Univ Of California Ucsf6305160300199

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. Michael C Chase allows following entities to bill medicare on his behalf.
Entity NameMarin Healthcare District
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659609964
PECOS PAC ID: 5698818011
Enrollment ID: O20100208000538
Entity NameRegents Univ Of California Ucsf
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124439807
PECOS PAC ID: 6305160300
Enrollment ID: O20150122001375

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. Michael C Chase 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
Michael C Chase, MD
2 Bon Air Rd Ste 150,
Larkspur, CA 94939-1142

Ph: (415) 945-7800
Michael C Chase, MD
2 Bon Air Rd Ste 150,
Larkspur, CA 94939-1142

Ph: (415) 945-7800

Reviews and Comments


Internal Medicine Doctors in Larkspur, CA

Dr. Sujoya Dey, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 2 Bon Air Rd, Suite 100, Larkspur, CA 94939
Phone: 415-927-0666    Fax: 415-927-6168
Dr. John Eugene Conte Jr., M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 5 Bon Air Rd, Larkspur, CA 94939
Phone: 415-924-1339    Fax: 415-924-1351
Dr. Mark P. Wexman, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 2 Bon Air Rd, Larkspur, CA 94939
Phone: 415-927-0666    Fax: 415-927-6159
Dr. Arundathi Shenoy Malladi, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 2 Bon Air Rd., #150, Larkspur, CA 94939
Phone: 415-464-9604    Fax: 415-464-0171
Dr. Margaret L. Baer, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2 Bon Air Rd, #100, Larkspur, CA 94939
Phone: 415-927-0666    Fax: 415-927-6168
Dr. Ines Sherifi, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 2 Bon Air Rd, Larkspur, CA 94939
Phone: 415-927-0666    Fax: 415-927-6168
Dr. Joel Sklar, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 2 Bon Air Rd, #100, Larkspur, CA 94939
Phone: 415-927-0666    Fax: 415-927-6168

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.