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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARCUS THEUS MD
NPI 1225529167
Emergency Medicine in Sacramento, CA

Active since May 26, 2018PECOS Enrolled
2025 MORSE AVE, SACRAMENTO, CA 95825(916) 973-6600 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2026, Aug 7, 2023, Jul 26, 2022 and 1 more (4 updates tracked since 2018).

About Marcus Theus Md NPPES

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

MARCUS THEUS MD (NPI 1225529167) is an individual emergency medicine provider in Sacramento, California, licensed in California (A163877) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225529167
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMARCUS THEUSCredential: MD
Location Address2025 MORSE AVESacramento, CA 95825-2115
Mailing Address2025 Morse AveSacramento, CA 95825-2115 · (916) 973-6600
Phone(916) 973-6600
Sole ProprietorNo
Enumeration DateMay 26, 2018
Last NPPES UpdateSeptember 3, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1225529167 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in CA · A163877✔ Licensed in NV · 23601
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
2025 MORSE AVE, Sacramento, CA 95825
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marcus Theus 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 Reassignments

2

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

Vituity-Nevada Medical Services Koury & Partners PC
90 mi
Emergency Medicine
880 ALDER AVE
Incline Village, NV 89451
  • Reassigned Medicare billing, Nevada enrollment
  • 100 clinicians in this Medicare group
NPI 1396585154 (775) 833-4100
Fremont Emergency Services Scherr Ltd
376 mi
Emergency Medicine
3100 N TENAYA WAY
Las Vegas, NV 89128
  • Reassigned Medicare billing, Nevada enrollment
  • 304 clinicians in this Medicare group
NPI 1366429821 (702) 255-5025

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 95825 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
$92.61 typical visit price
range $60.44 – $180.85
Typical copayment $23.15 (range $15.11 – $45.21)
Most-billed visit code 99203
Established Patient
$105.95 typical visit price
range $19.88 – $148.15
Typical copayment $26.48 (range $4.97 – $37.03)
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 20

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

SHARON KAY MCCOY FNP
Nurse Practitioner (Family)
2025 MORSE AVE
SACRAMENTO, CA 95825
Sacramento County (916) 973-6935
JEFFREY S. SKILLING MD
Obstetrics & Gynecology (Gynecologic Oncology)
2025 MORSE AVE
SACRAMENTO, CA 95825
Sacramento County (916) 973-5000
MONTAGUE G. CARR MD
Otolaryngology
2025 MORSE AVE
SACRAMENTO, CA 95825
Sacramento County (916) 973-5000
KAISER PERMANENTE
Nurse Anesthetist, Certified Registered
2025 MORSE AVE
SACRAMENTO, CA 95825
Sacramento County (916) 973-9676
MARCELA LAU MD
Pediatrics
2025 MORSE AVE
SACRAMENTO, CA 95825
Sacramento County (916) 973-5000
GREGG A. GILLES DPM
Podiatrist
2025 MORSE AVE
SACRAMENTO, CA 95825
Sacramento County (916) 973-5000
ROBERT P. OCHI MD
Radiology (Vascular & Interventional Radiology)
2025 MORSE AVE
SACRAMENTO, CA 95825
Sacramento County (916) 973-5000
HARVEY S. EDBER MD
Anesthesiology
2025 MORSE AVE
SACRAMENTO, CA 95825
Sacramento County (916) 973-5000

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 Marcus Theus's NPI number?

The NPI number for Marcus Theus is 1225529167. It was assigned to this individual provider in the NPPES registry on May 26, 2018.

Where is Marcus Theus located?

Marcus Theus practices at 2025 Morse Ave, Sacramento, CA 95825. The listed phone number is (916) 973-6600.

What is Marcus Theus's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Marcus Theus enrolled in Medicare?

Yes. Marcus Theus is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marcus Theus's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marcus Theus reassigns Medicare benefits to 2 organizations: Vituity-Nevada Medical Services Koury & Partners PC (Incline Village, NV) and Fremont Emergency Services Scherr Ltd (Las Vegas, NV). 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 Marcus Theus'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 Marcus Theus was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 days 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.