Dr Cynthia Lynn Fenton, MD - Medicare Internal Medicine in Mill Valley, CA

Dr Cynthia Lynn Fenton, MD is a medicare enrolled "Internal Medicine" physician in Mill Valley, California. She went to University Of California, San Diego School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Regents Of The University Of California, University Of California San Francisco and her current practice location is 315 Carrera Dr, Mill Valley, California. You can reach out to her office (for appointments etc.) via phone at (415) 300-6226.

Dr Cynthia Lynn Fenton is licensed to practice in California (license number G071207) 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 1063720431.

Contact Information

Dr Cynthia Lynn Fenton, MD
315 Carrera Dr,
Mill Valley, CA 94941-3995
(415) 300-6226
Not Available

Map and Direction




Physician's Profile

Full NameDr Cynthia Lynn Fenton
GenderFemale
SpecialityInternal Medicine
Experience35 Years
Location315 Carrera Dr, Mill 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 Cynthia Lynn Fenton attended and graduated from University Of California, San Diego School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1063720431
  • Provider Enumeration Date: 09/20/2010
  • Last Update Date: 09/20/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 9032305271
  • Enrollment ID: I20101130000445

Medical Identifiers

Medical identifiers for Dr Cynthia Lynn Fenton such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063720431NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G071207 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ucsf Medical CenterSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Of The University Of California4284547274581
University Of California San Francisco44865672291306

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 Cynthia Lynn Fenton allows following entities to bill medicare on her behalf.
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881763597
PECOS PAC ID: 4284547274
Enrollment ID: O20031106000389
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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 Cynthia Lynn Fenton 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 Cynthia Lynn Fenton, MD
315 Carrera Dr,
Mill Valley, CA 94941-3995

Ph: (415) 300-6226
Dr Cynthia Lynn Fenton, MD
315 Carrera Dr,
Mill Valley, CA 94941-3995

Ph: (415) 300-6226

Reviews and Comments


Internal Medicine Doctors in Mill Valley, CA

Dr. David Zakim, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 323 Melrose Ave, Mill Valley, CA 94941
Phone: 415-389-0250    
Dr. Irene Teper, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 655 Redwood Hwy Frontage Rd Ste 375, Mill Valley, CA 94941
Phone: 415-212-8332    
Leslie Y Miya, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 57 Homestead Blvd, Mill Valley, CA 94941
Phone: 415-381-7967    
Ms. Holly Jean Batterman, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 655 Redwood Hwy Ste 200, Mill Valley, CA 94941
Phone: 415-383-6623    Fax: 415-383-6671
Dr. Lewis Scot Lehman, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 99 Greenwood Way, Mill Valley, CA 94941
Phone: 415-381-1489    
Ms. Deanna Lorraine Green,
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 23 Reed Blvd Ste 120, Mill Valley, CA 94941
Phone: 415-795-7000    

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.