Dr Charles S Landefeld, MD - Medicare Internal Medicine in San Francisco, CA

Dr Charles S Landefeld, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in San Francisco, California. He went to Yale University School Of Medicine and graduated in 1979 and has 45 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice University Of Alabama Health Services Foundation, Pc and his current practice location is 2501 Ocean Ave, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 750-6625.

Dr Charles S Landefeld is licensed to practice in California (license number G43841) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1962440941.

Contact Information

Dr Charles S Landefeld, MD
2501 Ocean Ave,
San Francisco, CA 94143-0001
(415) 750-6625
(415) 750-6641

Map and Direction




Physician's Profile

Full NameDr Charles S Landefeld
GenderMale
SpecialityInternal Medicine
Experience45 Years
Location2501 Ocean Ave, San Francisco, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Charles S Landefeld attended and graduated from Yale University School Of Medicine in 1979
  NPI Data:
  • NPI Number: 1962440941
  • Provider Enumeration Date: 06/03/2006
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3375508591
  • Enrollment ID: I20130218000146

Medical Identifiers

Medical identifiers for Dr Charles S Landefeld such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962440941NPI-NPPES
00G438410MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G43841 (California)Primary
207RG0300XInternal Medicine - Geriatric Medicine G43841 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Alabama HospitalBirmingham, ALHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Of Alabama Health Services Foundation, Pc19512131072328

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 Charles S Landefeld allows following entities to bill medicare on his behalf.
Entity NameUniversity Of Alabama Health Services Foundation, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093768723
PECOS PAC ID: 1951213107
Enrollment ID: O20031105000261

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 Charles S Landefeld 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 Charles S Landefeld, MD
1635 Divisadero Street, Suite 625, Box 1821,
San Francisco, CA 94143-0001

Ph: (415) 476-4029
Dr Charles S Landefeld, MD
2501 Ocean Ave,
San Francisco, CA 94143-0001

Ph: (415) 750-6625

Reviews and Comments


Internal Medicine Doctors in San Francisco, CA

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Mauricio Jalife Bucay, M.D
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Phone: 415-750-4994    Fax: 415-750-8156
Dr. Adriana A.t. Martin, M.D., PH.D.
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Medicare: Medicare Enrolled
Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-514-7288    

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.