DR. GREGORY S MAEDER MD
NPI 1427387984
Family Medicine in Westminster, CO
About Dr. Gregory S Maeder Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY S MAEDER MD (NPI 1427387984) is an individual family medicine provider in Westminster, Colorado, licensed in Colorado (47014) and active in the NPI registry since December 2009. He is enrolled in Medicare PECOS and is a graduate of University Of Cincinnati College Of Medicine (2006).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Dr. Gregory S Maeder 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 Reassignments
3Medicare enrollment records show Gregory Maeder reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80218
- Reassigned Medicare billing, Colorado enrollment
- 165 clinicians in this Medicare group
Denver, CO 80203
- Reassigned Medicare billing, Colorado enrollment
- 75 clinicians in this Medicare group
Lakewood, CO 80228
- Reassigned Medicare billing, Colorado enrollment
- 51 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 4
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 80031 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.
Reported Quality Measures
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 Gregory Maeder's NPI number?
The NPI number for Gregory Maeder is 1427387984. It was assigned to this individual provider in the NPPES registry on December 12, 2009. The provider is also known as Dr. Gregory S Maeder MD, Mba.
Where is Gregory Maeder located?
Gregory Maeder practices at 8510 Bryant St 200, Westminster, CO 80031. The listed phone number is (303) 430-5560.
What is Gregory Maeder's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Gregory Maeder enrolled in Medicare?
Yes. Gregory Maeder 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 Gregory Maeder's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Maeder reassigns Medicare benefits to 3 organizations: Platte Valley Medical Group, LLC (Denver, CO), Goodness Health, LLC (Denver, CO) and Healogics Specialty Physicians Of Colorado-Professional, LLC (Lakewood, 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 Gregory Maeder's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Maeder accept?
Health plans from Select Health list Gregory Maeder 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 Gregory Maeder was last updated on October 25, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dr. Gregory S Maeder, MD · NPI 1427387984
Family Medicine physician in Westminster, Colorado. Individual provider, active in the CMS NPPES registry since December 12, 2009.
## Identity
- **NPI:** 1427387984 (Entity type: Individual)
- **Enumerated:** December 12, 2009
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 47014 (Colorado)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8510 BRYANT ST, 200, Westminster, CO 80031
- **Phone:** (303) 430-5560
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Platte Valley Medical Group, LLC (NPI 1144087685, Denver, CO); Goodness Health, LLC (NPI 1609241264, Denver, CO); Healogics Specialty Physicians Of Colorado-Professional, LLC (NPI 1114559572, Lakewood, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Cincinnati College Of Medicine, class of 2006
## Record status
- **NPPES last updated:** October 25, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1427387984) · Data from the CMS NPPES public registry.