Dr Mary Eleanor Margaretten, MD - Medicare Rheumatology in San Francisco, CA

Dr Mary Eleanor Margaretten, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in San Francisco, California. She went to University Of California, San Francisco School Of Medicine and graduated in 2003 and has 21 years of diverse experience with area of expertise as Rheumatology. She is a member of the group practice City And County Of San Francisco and her current practice location is 3333 California St, Suite #270, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (415) 476-2965.

Dr Mary Eleanor Margaretten is licensed to practice in California (license number A90714) 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 1588802706.

Contact Information

Dr Mary Eleanor Margaretten, MD
3333 California St, Suite #270,
San Francisco, CA 94143-0001
(415) 476-2965
(415) 476-9030

Map and Direction




Physician's Profile

Full NameDr Mary Eleanor Margaretten
GenderFemale
SpecialityRheumatology
Experience21 Years
Location3333 California St, San Francisco, 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 Mary Eleanor Margaretten attended and graduated from University Of California, San Francisco School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1588802706
  • Provider Enumeration Date: 01/26/2009
  • Last Update Date: 01/26/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 4688728272
  • Enrollment ID: I20090817000430

Medical Identifiers

Medical identifiers for Dr Mary Eleanor Margaretten such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588802706NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology A90714 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Zuckerberg San Francisco General Hosp & Trauma CtrSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
City And County Of San Francisco1658280748265

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 Mary Eleanor Margaretten allows following entities to bill medicare on her behalf.
Entity NameUniversity Of California Sfgh Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154396208
PECOS PAC ID: 5496668410
Enrollment ID: O20031113000632
Entity NameCity & County Of San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982737524
PECOS PAC ID: 1658280748
Enrollment ID: O20050309000770

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 Mary Eleanor Margaretten 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 Mary Eleanor Margaretten, MD
3333 California St, Suite #270,
San Francisco, CA 94143-0001

Ph: (415) 476-2965
Dr Mary Eleanor Margaretten, MD
3333 California St, Suite #270,
San Francisco, CA 94143-0001

Ph: (415) 476-2965

Reviews and Comments


Internal Medicine Doctors in San Francisco, CA

Dr. Pratyusha Kishore Narra, MBBS
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Phone: 415-514-6200    Fax: 415-514-6410
Dr. Chelsea Joy Thomsen, M.D., M.S.P.H
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Christine Soran,
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Phone: 415-206-5164    Fax: 415-206-5586
Stephen Norris Cohen, MD
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Phone: 415-681-2171    Fax: 415-681-2171
Mauricio Jalife Bucay, M.D
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Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-750-4994    Fax: 415-750-8156
Dr. Adriana A.t. Martin, M.D., PH.D.
Rheumatology
Medicare: Medicare Enrolled
Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-514-7288    
Dr. Alexandra Cristina Villasante Fricke, MD
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Medicare: Medicare Enrolled
Practice Location: 655 Montgomery St Ste 810, San Francisco, CA 94111
Phone: 844-847-8216    Fax: 415-520-9150

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).

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