Frederica S Lofquist, MD - Medicare Obstetrics & Gynecology in San Francisco, CA

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Frederica S Lofquist, MD is a medicare enrolled "Obstetrics & Gynecology - Obstetrics" physician in San Francisco, California. Her current practice location is 3838 California St, 316, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (415) 379-9600.

Frederica S Lofquist is licensed to practice in California (license number G65301) 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 1750458873.

Contact Information

Frederica S Lofquist, MD
3838 California St, 316,
San Francisco, CA 94118-1522
(415) 379-9600
(415) 379-9823

Map and Direction




Physician's Profile

Full NameFrederica S Lofquist
GenderFemale
SpecialityObstetrics & Gynecology - Obstetrics
Location3838 California St, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1750458873
  • Provider Enumeration Date: 11/30/2006
  • Last Update Date: 09/11/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 6305732405
  • Enrollment ID: I20040225000804

Medical Identifiers

Medical identifiers for Frederica S Lofquist such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750458873NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VG0400XObstetrics & Gynecology - Gynecology G65301 (California)Secondary
207VX0000XObstetrics & Gynecology - Obstetrics G65301 (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. Frederica S Lofquist allows following entities to bill medicare on her behalf.
Entity NameAdventist Health Physicians Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063718583
PECOS PAC ID: 3274580972
Enrollment ID: O20050407000633
Entity NameObhg California Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215258892
PECOS PAC ID: 8729276795
Enrollment ID: O20101217000826
Entity NameReedley Community Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336167550
PECOS PAC ID: 0941460984
Enrollment ID: O20201224000078

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. Frederica S Lofquist 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
Frederica S Lofquist, MD
3838 California St, 316,
San Francisco, CA 94118-1522

Ph: (415) 379-9600		Frederica S Lofquist, MD
3838 California St, 316,
San Francisco, CA 94118-1522

Ph: (415) 379-9600

Reviews and Comments


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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.