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LOIS VANDERHAGEN M.D.
NPI 1366476673
Internal Medicine in San Francisco, CA

Active since July 10, 2006PECOS Enrolled
2333 BUCHANAN ST, SAN FRANCISCO, CA 94115(925) 634-9704 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Lois Vanderhagen M.d. NPPES

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

LOIS VANDERHAGEN M.D. (NPI 1366476673) is an individual internal medicine provider in San Francisco, California, licensed in California (G69026) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366476673
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameLOIS VANDERHAGENCredential: M.D.
Location Address2333 BUCHANAN STSan Francisco, CA 94115-1925
Mailing AddressPo Box 1470Suisun City, CA 94585-4470
Phone(925) 634-9704
Sole ProprietorNo
Enumeration DateJuly 10, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1366476673 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G69026
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2333 BUCHANAN ST, San Francisco, CA 94115
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Other Identifiers 1

Medicare UPINA95479CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lois Vanderhagen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Lois Vanderhagen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hospitalist Medicine Physicians Of California, Inc
366 mi
Internal Medicine
18300 US HIGHWAY 18
Apple Valley, CA 92307
  • Reassigned Medicare billing, California enrollment
  • 914 clinicians in this Medicare group
NPI 1184663965 (760) 946-4233
St Peters Hospital
808 mi
Family Medicine
820 N MONTANA AVENUE, FAMILY HEALTH CLINIC
Helena, MT 59601
  • Reassigned Medicare billing, Montana enrollment
  • Medicare enrollment name: St Peters Health
  • 304 clinicians in this Medicare group
NPI 1154435055 (406) 447-2841

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94115 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier11 claims11 services$48.73 avg. paid by Medicare
Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630
DME-Other DME · category DE000N
1 supplier11 claims11 services$39.27 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

TIMOTHY BAUER DUNCAN MD
Emergency Medicine
2333 BUCHANAN ST
SAN FRANCISCO, CA 94115
San Francisco County (209) 342-2300
DR. SHERRY PINWATANA LIAO PHARM.D.
Pharmacist
2333 BUCHANAN ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 600-6000
CPMC
General Acute Care Hospital
2333 BUCHANAN ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 600-6000
ROBERT MCGARRIGLE
Internal Medicine
2333 BUCHANAN ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 350-9356
MS. JULIA LEWIS-HATHEWAY
Student in an Organized Health Care Education/Training Program
2333 BUCHANAN ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 600-6000
DR. RYAN DONG P.T.
Physical Therapist
2333 BUCHANAN ST, 4880
SAN FRANCISCO, CA 94115
San Francisco County (415) 600-3399
PHILLIP KENNEDY M.D.
Internal Medicine
2333 BUCHANAN ST
SAN FRANCISCO, CA 94115
San Francisco County (925) 634-9704
KENNETH F. BINMOELLER, MD INC
Internal Medicine (Gastroenterology)
2333 BUCHANAN ST, 5TH FLOOR GI LAB
SAN FRANCISCO, CA 94115
San Francisco County (415) 600-1151

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 Lois Vanderhagen's NPI number?

The NPI number for Lois Vanderhagen is 1366476673. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Where is Lois Vanderhagen located?

Lois Vanderhagen practices at 2333 Buchanan St, San Francisco, CA 94115. The listed phone number is (925) 634-9704.

What is Lois Vanderhagen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Lois Vanderhagen enrolled in Medicare?

Yes. Lois Vanderhagen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Lois Vanderhagen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lois Vanderhagen reassigns Medicare benefits to 2 organizations: Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA) and St Peters Hospital (Helena, MT). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lois Vanderhagen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lois Vanderhagen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.