DR. HEIDI S. MCMILLAN MD
NPI 1457371742
Pediatrics in Durango, CO
About Dr. Heidi S. Mcmillan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HEIDI S. MCMILLAN MD (NPI 1457371742) is an individual pediatrics provider in Durango, Colorado, licensed in Colorado (50159) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Pennsylvania State University College Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 5
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. Heidi S. Mcmillan Md 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 Heidi Mcmillan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Durango, CO 81301
- Reassigned Medicare billing, Colorado enrollment
- 97 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 81301 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DURANGO, CO 81301
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 Heidi Mcmillan's NPI number?
The NPI number for Heidi Mcmillan is 1457371742. It was assigned to this individual provider in the NPPES registry on July 20, 2006.
Where is Heidi Mcmillan located?
Heidi Mcmillan practices at 150 Mercury Village Dr, Durango, CO 81301. The listed phone number is (970) 335-2342.
What is Heidi Mcmillan's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Heidi Mcmillan enrolled in Medicare?
Yes. Heidi 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 organization bills Medicare for Heidi Mcmillan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Heidi Mcmillan reassigns Medicare benefits to Southwest Colorado Mental Health Center, Inc (Durango, CO). 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 Heidi Mcmillan'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 Heidi Mcmillan was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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. Heidi S. Mcmillan, MD · NPI 1457371742
Pediatrics physician in Durango, Colorado. Individual provider, active in the CMS NPPES registry since July 20, 2006.
## Identity
- **NPI:** 1457371742 (Entity type: Individual)
- **Enumerated:** July 20, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 50159 (Colorado)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 150 MERCURY VILLAGE DR, Durango, CO 81301-8955
- **Phone:** (970) 335-2342 · **Fax:** (970) 335-2438
## 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:** Southwest Colorado Mental Health Center, Inc (NPI 1487420725, Durango, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pennsylvania State University College Of Medicine, class of 2002
## Record status
- **NPPES last updated:** February 9, 2026
- **Other identifiers:** Other 9631177; Other 12-00960; Other 107040638101 (UT); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1457371742) · Data from the CMS NPPES public registry.