DR. EUGENE MATTHEW TAN MD
NPI 1962848663
Internal Medicine in Wheat Ridge, CO
About Dr. Eugene Matthew Tan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EUGENE MATTHEW TAN MD (NPI 1962848663) is an individual internal medicine provider in Wheat Ridge, Colorado, licensed in Colorado (DR.0065425) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS and is a graduate of State University Of New York At Stony Brook, School Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses 2
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. Eugene Matthew Tan 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
2Medicare enrollment records show Eugene Tan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80247
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Colorado Permanente Medical Group PC
- 1,715 clinicians in this Medicare group
Norfolk, VA 23502
- Reassigned Medicare billing, Virginia enrollment
- 1,901 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 80033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
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 20
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 Eugene Tan's NPI number?
The NPI number for Eugene Tan is 1962848663. It was assigned to this individual provider in the NPPES registry on May 21, 2013.
Where is Eugene Tan located?
Eugene Tan practices at 4803 Ward Rd, Wheat Ridge, CO 80033. The listed phone number is (303) 338-4545.
What is Eugene Tan's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Eugene Tan enrolled in Medicare?
Yes. Eugene Tan 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 Eugene Tan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eugene Tan reassigns Medicare benefits to 2 organizations: Colorado Permanente Medical Group, P.C. (Denver, CO) and Sentara Medical Group (Norfolk, VA). 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 Eugene Tan'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 Eugene Tan was last updated on January 10, 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.
# Dr. Eugene Matthew Tan, MD · NPI 1962848663
Internal Medicine physician in Wheat Ridge, Colorado. Individual provider, active in the CMS NPPES registry since May 21, 2013.
## Identity
- **NPI:** 1962848663 (Entity type: Individual)
- **Enumerated:** May 21, 2013
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** DR.0065425 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 4803 WARD RD, Wheat Ridge, CO 80033-1902
- **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:** 2 organizations under Medicare reassignment (form CMS-855R): Colorado Permanente Medical Group, P.C. (NPI 1760599724, Denver, CO); Sentara Medical Group (NPI 1265485270, Norfolk, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Stony Brook, School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** January 10, 2023
- **Other identifiers:** Medicaid 9000195031 (CO); Other 029254 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1962848663) · Data from the CMS NPPES public registry.