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SPENCER SHIRL OLSEN MD
NPI 1962412767
Preventive Medicine - Occupational Medicine in San Diego, CA

Active since August 08, 2006PECOS Enrolled
5575 RUFFIN ROAD, US HEALTH WORKS SUITE 100, SAN DIEGO, CA 92123(858) 565-1300(858) 565-6932 Get Directions Write a Review

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

About Spencer Shirl Olsen Md NPPES

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

SPENCER SHIRL OLSEN MD (NPI 1962412767) is an individual occupational medicine provider in San Diego, California, licensed in California (A88450) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1962412767
Entity TypeIndividualMale
Primary Taxonomy2083X0100X
Provider Legal NameSPENCER SHIRL OLSENCredential: MD
Location Address5575 RUFFIN ROAD, US HEALTH WORKS SUITE 100San Diego, CA 92123-1361
Mailing Address1800 E Shelby StSeattle, WA 98112 · (206) 852-8661
Phone(858) 565-1300
Fax(858) 565-6932
Sole ProprietorNo
Enumeration DateAugust 8, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1962412767 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPreventive Medicine · Occupational MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2083X0100X
License✔ Licensed in CA · A88450
Definition
Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.
5575 RUFFIN ROAD, San Diego, CA 92123
Open in Google Maps ↗

Other Identifiers 2

OtherMD00045600WA · License
OtherA88450CA · License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Spencer Shirl Olsen Md 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 Reassignment

Medicare enrollment records show Spencer Olsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Intermountain Medical Group Grand Junction, LLC
575 mi
Neurological Surgery
20 S MARKET ST
Cortez, CO 81321
  • Reassigned Medicare billing, Colorado enrollment
  • 438 clinicians in this Medicare group
NPI 1609489848 (970) 565-4291

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 92123 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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.

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 Spencer Olsen's NPI number?

The NPI number for Spencer Olsen is 1962412767. It was assigned to this individual provider in the NPPES registry on August 8, 2006.

Where is Spencer Olsen located?

Spencer Olsen practices at 5575 Ruffin Road Us Health Works Suite 100, San Diego, CA 92123. The listed phone number is (858) 565-1300.

What is Spencer Olsen's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.

Is Spencer Olsen enrolled in Medicare?

Yes. Spencer Olsen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Spencer Olsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Spencer Olsen reassigns Medicare benefits to Intermountain Medical Group Grand Junction, LLC (Cortez, CO). The 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 Spencer Olsen'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 Spencer Olsen 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.