AMBER MARIE MCMILLIN FNP-C MSN
NPI 1619373347
Nurse Practitioner in Rapid City, SD
About Amber Marie Mcmillin Fnp-c Msn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMBER MARIE MCMILLIN FNP-C MSN (NPI 1619373347) is an individual nurse practitioner in Rapid City, South Dakota, licensed in South Dakota (CP001155) and active in the NPI registry since November 2014. She is enrolled in Medicare PECOS, is affiliated with Avera St Mary's Hospital, 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
Amber Marie Mcmillin Fnp-c Msn 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 Reassignment
Medicare enrollment records show Amber Mcmillin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Rapid City, SD 57701
- Reassigned Medicare billing, South Dakota enrollment
- 831 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 9
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Avera St Mary's Hospital
Acute Care Hospitals · Pierre, SDMonument Health Rapid City Hospital
Acute Care Hospitals · Rapid City, SDMonument Health Sturgis Hospital
Critical Access Hospitals · Sturgis, SDMonument Health Custer Hospital
Critical Access Hospitals · Custer, SDWeston County Health Services
Critical Access Hospitals · Newcastle, WYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57701 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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
RAPID CITY, SD 57701
RAPID CITY, SD 57701
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 Amber Mcmillin's NPI number?
The NPI number for Amber Mcmillin is 1619373347. It was assigned to this individual provider in the NPPES registry on November 6, 2014.
Where is Amber Mcmillin located?
Amber Mcmillin practices at 640 Flormann St, Rapid City, SD 57701. The listed phone number is (605) 755-3300.
What is Amber Mcmillin's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Amber Mcmillin enrolled in Medicare?
Yes. Amber Mcmillin 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 organization bills Medicare for Amber Mcmillin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amber Mcmillin reassigns Medicare benefits to Monument Health Rapid City Hospital, Inc. (Rapid City, SD). 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 Amber Mcmillin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Amber Mcmillin accept?
Health plans from Avera Health Plans, Oscar Insurance Company, Sanford Health Plan, UnitedHealthcare and Wellmark of South Dakota, Inc. list Amber Mcmillin 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 Amber Mcmillin affiliated with any hospitals?
According to CMS data, Amber Mcmillin is affiliated with Avera St Mary's Hospital, Monument Health Rapid City Hospital, Monument Health Sturgis Hospital, Monument Health Custer Hospital and Weston County Health Services.
When was this NPI record last updated?
The NPPES record for Amber Mcmillin was last updated on August 30, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Amber Marie Mcmillin, FNP-C MSN · NPI 1619373347
Nurse Practitioner physician in Rapid City, South Dakota. Individual provider, active in the CMS NPPES registry since November 6, 2014.
## Identity
- **NPI:** 1619373347 (Entity type: Individual)
- **Enumerated:** November 6, 2014
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** CP001155 (South Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 640 FLORMANN ST, Rapid City, SD 57701
- **Phone:** (605) 755-3300
## 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:** Monument Health Rapid City Hospital, Inc. (NPI 1821477746, Rapid City, SD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** August 30, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1619373347) · Data from the CMS NPPES public registry.