DR. JAMES M MARTAU MD
NPI 1053335166
Internal Medicine - Geriatric Medicine in Westminster, CO
About Dr. James M Martau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES M MARTAU MD (NPI 1053335166) is an individual geriatric medicine provider in Westminster, Colorado, licensed in Colorado (37072) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Lakewood, and is a graduate of Ohio State University College Of Medicine (1995).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 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. James M Martau 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 James Martau reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Westminster, CO 80023
- Reassigned Medicare billing, Colorado enrollment
- 15 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 12
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 80023 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 14
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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WESTMINSTER, CO 80023
WESTMINSTER, CO 80023
WESTMINSTER, CO 80023
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 James Martau's NPI number?
The NPI number for James Martau is 1053335166. It was assigned to this individual provider in the NPPES registry on July 26, 2006.
Where is James Martau located?
James Martau practices at 500 W 144th Ave Ste 140, Westminster, CO 80023. The listed phone number is (303) 430-2640.
What is James Martau's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is James Martau enrolled in Medicare?
Yes. James Martau 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 James Martau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Martau reassigns Medicare benefits to Geriatric Medicine Associates, PC (Westminster, 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 James Martau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Martau accept?
Health plans from UnitedHealthcare list James Martau 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 James Martau was last updated on February 9, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.