DR. NICHOLAUS MIZE D.O
NPI 1629459482
Internal Medicine in Loveland, CO
About Dr. Nicholaus Mize D.o NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NICHOLAUS MIZE D.O (NPI 1629459482) is an individual internal medicine provider in Loveland, Colorado, licensed in Colorado (DR.0061867) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2015).
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. Nicholaus Mize 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 Nicholaus Mize reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Loveland, CO 80538
- Reassigned Medicare billing, Colorado enrollment
- 2,596 clinicians in this Medicare group
Wheat Ridge, CO 80401
- Reassigned Medicare billing, Colorado enrollment
- 111 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 7
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 80538 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 4
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 6
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 Nicholaus Mize's NPI number?
The NPI number for Nicholaus Mize is 1629459482. It was assigned to this individual provider in the NPPES registry on June 17, 2015.
Where is Nicholaus Mize located?
Nicholaus Mize practices at 221 E 29th St Ste 202, Loveland, CO 80538. The listed phone number is (970) 203-7050.
What is Nicholaus Mize's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nicholaus Mize enrolled in Medicare?
Yes. Nicholaus Mize 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 Nicholaus Mize's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholaus Mize reassigns Medicare benefits to 2 organizations: Poudre Valley Medical Group, LLC (Loveland, CO) and Intermountain Front Range, Inc. (Wheat Ridge, CO). 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 Nicholaus Mize's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nicholaus Mize accept?
Health plans from Select Health and UnitedHealthcare list Nicholaus Mize 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 Nicholaus Mize was last updated on October 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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. Nicholaus Mize, D.O · NPI 1629459482
Internal Medicine physician in Loveland, Colorado. Individual provider, active in the CMS NPPES registry since June 17, 2015.
## Identity
- **NPI:** 1629459482 (Entity type: Individual)
- **Enumerated:** June 17, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** DR.0061867 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 221 E 29TH ST STE 202, Loveland, CO 80538-2746
- **Phone:** (970) 203-7050 · **Fax:** (970) 203-7055
## 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): Poudre Valley Medical Group, LLC (NPI 1225356868, Loveland, CO); Intermountain Front Range, Inc. (NPI 1083444079, Wheat Ridge, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** October 30, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1629459482) · Data from the CMS NPPES public registry.