MARGARET P. MCLEES MD
NPI 1811087497
Internal Medicine - Infectious Disease in Denver, CO
About Margaret P. Mclees Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET P. MCLEES MD (NPI 1811087497) is an individual infectious disease provider in Denver, Colorado, licensed in Colorado (DR.0042469) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Denver, and is a graduate of Medical University Of South Carolina College Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
Margaret P. Mclees 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 Margaret Mclees reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80204
- Reassigned Medicare billing, Colorado enrollment
- 2,259 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 80204 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.
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.
DENVER, CO 80204
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 Margaret Mclees's NPI number?
The NPI number for Margaret Mclees is 1811087497. It was assigned to this individual provider in the NPPES registry on October 13, 2006.
Where is Margaret Mclees located?
Margaret Mclees practices at 777 Bannock St, Denver, CO 80204. The listed phone number is (303) 602-3700.
What is Margaret Mclees's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Margaret Mclees enrolled in Medicare?
Yes. Margaret Mclees 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 Margaret Mclees's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Mclees reassigns Medicare benefits to Denver Health And Hospital Authority (Denver, 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 Margaret Mclees'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 Margaret Mclees was last updated on February 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Margaret P. Mclees, MD · NPI 1811087497
Infectious Disease physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since October 13, 2006.
## Identity
- **NPI:** 1811087497 (Entity type: Individual)
- **Enumerated:** October 13, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** DR.0042469 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 777 BANNOCK ST, Denver, CO 80204-4597
- **Phone:** (303) 602-3700 · **Fax:** (303) 602-3676
## 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:** Denver Health And Hospital Authority (NPI 1477569838, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical University Of South Carolina College Of Medicine, class of 2001
## Record status
- **NPPES last updated:** February 13, 2025
- **Other identifiers:** Medicaid 51455820 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1811087497) · Data from the CMS NPPES public registry.