SIRI E. LOKEN MD
NPI 1578212692
Family Medicine in San Francisco, CA

Active since March 23, 2022PECOS EnrolledAccepts Medicare Assignment
899 VALENCIA ST, SAN FRANCISCO, CA 94110(415) 600-5400 Get Directions Write a Review

NPPES record last updated: January 16, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 16, 2026, Aug 8, 2023 (2 updates tracked since 2023).

About Siri E. Loken Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SIRI E. LOKEN MD (NPI 1578212692) is an individual family medicine provider in San Francisco, California, licensed in California (A202758) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2022).

NPPES Registry Identity

NPI1578212692
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameSIRI E. LOKENCredential: MD
Location Address899 VALENCIA STSan Francisco, CA 94110-1736
Mailing Address899 Valencia StSan Francisco, CA 94110-1736 · (415) 600-5400
Sole ProprietorNo
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2022
Enumeration DateMarch 23, 2022
Last NPPES UpdateJanuary 16, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 16, 2026
NPI 1578212692 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in CA · A202758
Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

899 VALENCIA ST, San Francisco, CA 94110

Other Names 1

Former Name (1)Siri Loken-egdahl

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Siri E. Loken Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123481959
PECOS Enrollment IDI20251117001419
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Adult Health)
899 VALENCIA ST
SAN FRANCISCO, CA 94110
Family Medicine
899 VALENCIA ST
SAN FRANCISCO, CA 94110

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Siri Loken's NPI number?

The NPI number for Siri Loken is 1578212692. It was assigned to this individual provider in the NPPES registry on March 23, 2022. The provider is also known as Siri Loken-Egdahl.

Where is Siri Loken located?

Siri Loken practices at 899 Valencia St, San Francisco, CA 94110. The listed phone number is (415) 600-5400.

What is Siri Loken's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Siri Loken enrolled in Medicare?

Yes. Siri Loken is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Siri Loken was last updated on January 16, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.