DR. MARK J LARSEN M.D.
NPI 1992894141
Radiology - Diagnostic Radiology in Orinda, CA

Q: What is Mark Larsen's NPI number?

The NPI number for Mark Larsen is 1992894141. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Q: What is Mark Larsen's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Mark Larsen was last updated on September 10, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since October 12, 2006PECOS Enrolled

65 LOMA VISTA DR, ORINDA, CA 94563(925) 258-4300(408) 228-0823 Get Directions Write a Review

NPPES record last updated: September 10, 2012. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Dr. Mark J Larsen M.d. NPPES

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

DR. MARK J LARSEN M.D. (NPI 1992894141) is an individual diagnostic radiology provider in Orinda, California, licensed in California (G51274) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1992894141

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. MARK J LARSENCredential: M.D.

Location Address65 LOMA VISTA DROrinda, CA 94563-2236

Mailing Address65 Loma Vista DrOrinda, CA 94563-2236 · (925) 258-4300 · Fax (408) 228-0823

Phone(925) 258-4300

Fax(408) 228-0823

Sole ProprietorYes

Enumeration DateOctober 12, 2006

Last NPPES UpdateSeptember 10, 2012

✔ NPI 1992894141 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in CA · G51274✔ Licensed in KY · 38096

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

65 LOMA VISTA DR, Orinda, CA 94563

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Other Identifiers 1

Medicare ID-Type Unspecified00G512740CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark J Larsen 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94563 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

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

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 Mark Larsen's NPI number?

The NPI number for Mark Larsen is 1992894141. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Where is Mark Larsen located?

Mark Larsen practices at 65 Loma Vista Dr, Orinda, CA 94563. The listed phone number is (925) 258-4300.

What is Mark Larsen's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Mark Larsen enrolled in Medicare?

Yes. Mark Larsen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Larsen was last updated on September 10, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.