TRACY ANN STILLER MD
NPI 1467424259
Internal Medicine in Lakewood, CO
About Tracy Ann Stiller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TRACY ANN STILLER MD (NPI 1467424259) is an individual internal medicine provider in Lakewood, Colorado, licensed in Colorado (41100) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Miami, Lm Miller School Of Medicine (1996).
NPPES Registry Identity
Specialties & Licenses 2
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
Tracy Ann Stiller 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
4Medicare enrollment records show Tracy Stiller reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lakewood, CO 80228
- Reassigned Medicare billing, Colorado enrollment
- 1,193 clinicians in this Medicare group
Lakewood, CO 80228
- Reassigned Medicare billing, Colorado enrollment
- 733 clinicians in this Medicare group
Evergreen, CO 80439
- Reassigned Medicare billing, Colorado enrollment
- 4 clinicians in this Medicare group
Thornton, CO 80241
- Reassigned Medicare billing, Colorado enrollment
- 4 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 6
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 80228 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 10
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 Tracy Stiller's NPI number?
The NPI number for Tracy Stiller is 1467424259. It was assigned to this individual provider in the NPPES registry on February 6, 2006.
Where is Tracy Stiller located?
Tracy Stiller practices at 11650 W 2nd Pl, Lakewood, CO 80228. The listed phone number is (720) 321-5200.
What is Tracy Stiller's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Tracy Stiller enrolled in Medicare?
Yes. Tracy Stiller 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 Tracy Stiller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tracy Stiller reassigns Medicare benefits to 4 organizations: Catholic Health Initiatives Colorado (Lakewood, CO), Portercare Adventist Health System (Lakewood, CO), Mount Evans Hospice, Inc. (Evergreen, CO) and Transitional Care Specialists (Thornton, 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 Tracy Stiller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tracy Stiller accept?
Health plans from Select Health and UnitedHealthcare list Tracy Stiller 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 Tracy Stiller was last updated on January 26, 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.
# Tracy Ann Stiller, MD · NPI 1467424259
Internal Medicine physician in Lakewood, Colorado. Individual provider, active in the CMS NPPES registry since February 6, 2006.
## Identity
- **NPI:** 1467424259 (Entity type: Individual)
- **Enumerated:** February 6, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 41100 (Colorado)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 11650 W 2ND PL, Lakewood, CO 80228-1527
- **Phone:** (720) 321-5200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Catholic Health Initiatives Colorado (NPI 1023381928, Lakewood, CO); Portercare Adventist Health System (NPI 1174488852, Lakewood, CO); Mount Evans Hospice, Inc. (NPI 1346284965, Evergreen, CO); Transitional Care Specialists (NPI 1952756934, Thornton, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Miami, Lm Miller School Of Medicine, class of 1996
## Record status
- **NPPES last updated:** January 26, 2023
- **Other identifiers:** Medicaid 81709021 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1467424259) · Data from the CMS NPPES public registry.