DR. LILLIAN KLANCAR M.D.
NPI 1598798761
Internal Medicine - Hematology & Oncology in Lone Tree, CO
About Dr. Lillian Klancar M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LILLIAN KLANCAR M.D. (NPI 1598798761) is an individual hematology & oncology provider in Lone Tree, Colorado, licensed in Colorado (37812) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Colorado School Of Medicine, Denver (1996).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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. Lillian Klancar M.d. 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 Lillian Klancar reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenwood Village, CO 80111
- Reassigned Medicare billing, Colorado enrollment
- 157 clinicians in this Medicare group
Denver, CO 80247
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Colorado Permanente Medical Group PC
- 1,715 clinicians in this Medicare group
Denver, CO 80218
- Reassigned Medicare billing, Colorado enrollment
- 41 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 80124 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LONE TREE, CO 80124
LONE TREE, CO 80124
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 Lillian Klancar's NPI number?
The NPI number for Lillian Klancar is 1598798761. It was assigned to this individual provider in the NPPES registry on July 9, 2006.
Where is Lillian Klancar located?
Lillian Klancar practices at 10240 Park Meadows Dr, Lone Tree, CO 80124. The listed phone number is (303) 338-4545.
What is Lillian Klancar's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Lillian Klancar enrolled in Medicare?
Yes. Lillian Klancar 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 Lillian Klancar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lillian Klancar reassigns Medicare benefits to 3 organizations: Rocky Mountain Cancer Centers LLP (Greenwood Village, CO), Colorado Permanente Medical Group, P.C. (Denver, CO) and Healthone Clinic Services - Oncology Hematology LLC (Denver, 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 Lillian Klancar'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 Lillian Klancar was last updated on June 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. Lillian Klancar, M.D. · NPI 1598798761
Hematology & Oncology physician in Lone Tree, Colorado. Individual provider, active in the CMS NPPES registry since July 9, 2006.
## Identity
- **NPI:** 1598798761 (Entity type: Individual)
- **Enumerated:** July 9, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 37812 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 10240 PARK MEADOWS DR, Lone Tree, CO 80124-5425
- **Phone:** (303) 338-4545
## 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): Rocky Mountain Cancer Centers LLP (NPI 1861539538, Greenwood Village, CO); Colorado Permanente Medical Group, P.C. (NPI 1760599724, Denver, CO); Healthone Clinic Services - Oncology Hematology LLC (NPI 1376873208, Denver, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Colorado School Of Medicine, Denver, class of 1996
## Record status
- **NPPES last updated:** June 21, 2021
- **Other identifiers:** Other 026793 (CO); Medicaid 68021887 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1598798761) · Data from the CMS NPPES public registry.