KARLI MCMILLAN D.O.
NPI 1063947026
Family Medicine in Douglas, WY
About Karli Mcmillan D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KARLI MCMILLAN D.O. (NPI 1063947026) is an individual family medicine provider in Douglas, Wyoming, licensed in Missouri (2021039551) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with Wyoming Medical Center, and maintains a secondary practice location in Saint Louis.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Karli Mcmillan 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
2Medicare enrollment records show Karli Mcmillan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Douglas, WY 82633
- Reassigned Medicare billing, Wyoming enrollment
- Also billed through NPI 1326085408 (Wyoming)
- 131 clinicians in this Medicare group
Woods Cross, UT 84010
- Reassigned Medicare billing, Wyoming enrollment
- 10 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 3
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Wyoming Medical Center
Acute Care Hospitals · Casper, WYSummit Medical Center
Acute Care Hospitals · Casper, WYMemorial Hospital Of Converse County
Critical Access Hospitals · Douglas, WYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 82633 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
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 Karli Mcmillan's NPI number?
The NPI number for Karli Mcmillan is 1063947026. It was assigned to this individual provider in the NPPES registry on April 27, 2017.
Where is Karli Mcmillan located?
Karli Mcmillan practices at 700 E Center St, Douglas, WY 82633. The listed phone number is (307) 358-7300.
What is Karli Mcmillan's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Karli Mcmillan enrolled in Medicare?
Yes. Karli Mcmillan 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 Karli Mcmillan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karli Mcmillan reassigns Medicare benefits to 2 organizations: Memorial Hospital Of Converse County (Douglas, WY) and Senior Health LLC (Woods Cross, UT). 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 Karli Mcmillan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karli Mcmillan accept?
Health plans from Blue Cross Blue Shield of Wyoming and UnitedHealthcare list Karli Mcmillan 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.
Is Karli Mcmillan affiliated with any hospitals?
According to CMS data, Karli Mcmillan is affiliated with Wyoming Medical Center, Summit Medical Center and Memorial Hospital Of Converse County.
When was this NPI record last updated?
The NPPES record for Karli Mcmillan was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Karli Mcmillan, D.O. · NPI 1063947026
Family Medicine physician in Douglas, Wyoming. Individual provider, active in the CMS NPPES registry since April 27, 2017.
## Identity
- **NPI:** 1063947026 (Entity type: Individual)
- **Enumerated:** April 27, 2017
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 2021039551 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 700 E CENTER ST, Douglas, WY 82633-2446
- **Phone:** (307) 358-7300
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Memorial Hospital Of Converse County (NPI 1356496491, Douglas, WY); Senior Health LLC (NPI 1134721228, Woods Cross, UT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lincoln Memorial University Medical Department, class of 2017
## Record status
- **NPPES last updated:** April 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1063947026) · Data from the CMS NPPES public registry.