DR. JUSTIN GRISHAM D.O.
NPI 1427417062
Emergency Medicine in Cortez, CO
About Dr. Justin Grisham D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JUSTIN GRISHAM D.O. (NPI 1427417062) is an individual emergency medicine provider in Cortez, Colorado, licensed in Arizona (011215) and active in the NPI registry since February 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Justin Grisham D.o. 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.
Medicare Billing Reassignments
5Medicare enrollment records show Justin Grisham reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cortez, CO 81321
- Reassigned Medicare billing, Colorado enrollment
- Also billed through NPI 1235655838 (Colorado)
- 75 clinicians in this Medicare group
Avon, CO 81620
- Reassigned Medicare billing, Colorado enrollment
- 352 clinicians in this Medicare group
Trinidad, CO 81082
- Reassigned Medicare billing, Arizona and Kansas enrollments
- 71 clinicians in this Medicare group
Littleton, CO 80123
- Reassigned Medicare billing, Colorado enrollment
- 91 clinicians in this Medicare group
Wausau, WI 54401
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Aspirus Iron River Hospital & Clinics Inc
- Also billed through NPI 1457865198 (Michigan)
- 200 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 81321 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Justin Grisham's NPI number?
The NPI number for Justin Grisham is 1427417062. It was assigned to this individual provider in the NPPES registry on February 10, 2016.
Where is Justin Grisham located?
Justin Grisham practices at 1311 N Mildred Rd, Cortez, CO 81321. The listed phone number is (970) 565-6666.
What is Justin Grisham's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Justin Grisham enrolled in Medicare?
Yes. Justin Grisham 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.
Which organizations bill Medicare for Justin Grisham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Grisham reassigns Medicare benefits to 5 organizations: Southwest Health System Inc (Cortez, CO), Usacs Community Emergency Services Of Colorado, Inc. (Avon, CO), Innova Emergency Medical Associates PC (Trinidad, CO), Emergency Service Physicians, Inc. (Littleton, CO) and Aspirus Medical Group, Inc. (Wausau, WI). 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 Justin Grisham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Justin Grisham accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Arizona, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Blue Cross and Blue Shield of Kansas, Inc. and Cigna HealthCare of Arizona, Inc list Justin Grisham as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Justin Grisham was last updated on May 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.
# Dr. Justin Grisham, D.O. · NPI 1427417062
Emergency Medicine physician in Cortez, Colorado. Individual provider, active in the CMS NPPES registry since February 10, 2016.
## Identity
- **NPI:** 1427417062 (Entity type: Individual)
- **Enumerated:** February 10, 2016
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 011215 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 1311 N MILDRED RD, Cortez, CO 81321-2231
- **Phone:** (970) 565-6666
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Southwest Health System Inc (NPI 1649241571, Cortez, CO); Usacs Community Emergency Services Of Colorado, Inc. (NPI 1982239042, Avon, CO); Innova Emergency Medical Associates PC (NPI 1295178978, Trinidad, CO); Emergency Service Physicians, Inc. (NPI 1659906154, Littleton, CO); Aspirus Medical Group, Inc. (NPI 1033411822, Wausau, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** May 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1427417062) · Data from the CMS NPPES public registry.