MATTHEW M MCDIARMID DO
NPI 1003234162
Internal Medicine - Interventional Cardiology in Thornton, CO
About Matthew M Mcdiarmid Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW M MCDIARMID DO (NPI 1003234162) is an individual interventional cardiology provider in Thornton, Colorado, licensed in Colorado (DR.0065978) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, maintains a secondary practice location in Glenwood Springs, and is a graduate of Nova Southeastern College Of Osteo Medicine (2014).
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Location 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
Matthew M Mcdiarmid Do 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
4Medicare enrollment records show Matthew Mcdiarmid reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Thornton, CO 80023
- Reassigned Medicare billing, Colorado enrollment
- 15 clinicians in this Medicare group
Denver, CO 80222
- Reassigned Medicare billing, Colorado enrollment
- 13 clinicians in this Medicare group
Eagle, CO 81631
- Reassigned Medicare billing, Colorado enrollment
- 54 clinicians in this Medicare group
Holyoke, CO 80734
- Reassigned Medicare billing, Colorado enrollment
- Also billed through NPI 1891733879 (Colorado), NPI 1073520375 (Colorado)
- 26 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 35
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.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
THORNTON, CO 80023
THORNTON, CO 80023
THORNTON, CO 80023
THORNTON, 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 Matthew Mcdiarmid's NPI number?
The NPI number for Matthew Mcdiarmid is 1003234162. It was assigned to this individual provider in the NPPES registry on April 4, 2014.
Where is Matthew Mcdiarmid located?
Matthew Mcdiarmid practices at 805 E 144th Ave Ste 100, Thornton, CO 80023. The listed phone number is (720) 772-8040.
What is Matthew Mcdiarmid's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Matthew Mcdiarmid enrolled in Medicare?
Yes. Matthew Mcdiarmid 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 Matthew Mcdiarmid's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Mcdiarmid reassigns Medicare benefits to 4 organizations: Advanced Heart And Vein Center Inc (Thornton, CO), Vascular Labs Of The Rockies PLLC (Denver, CO), Valley View Hospital Association (Eagle, CO) and East Phillips County Hospital District (Holyoke, 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 Matthew Mcdiarmid's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Mcdiarmid accept?
Health plans from UnitedHealthcare list Matthew Mcdiarmid 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 Matthew Mcdiarmid was last updated on May 17, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.