DR. JAMES G WILLETT MD
NPI 1689711962
Internal Medicine - Hospice and Palliative Medicine in Denver, CO
About Dr. James G Willett Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES G WILLETT MD (NPI 1689711962) is an individual hospice and palliative medicine provider in Denver, Colorado, licensed in Colorado (48913) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Englewood, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2006).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 3
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. James G Willett 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 James Willett reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80247
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Colorado Permanente Medical Group PC
- 1,715 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
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.
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 80218
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 James Willett's NPI number?
The NPI number for James Willett is 1689711962. It was assigned to this individual provider in the NPPES registry on January 30, 2007.
Where is James Willett located?
James Willett practices at 1375 E 19th Ave, Denver, CO 80218. The listed phone number is (303) 338-4545.
What is James Willett's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.
Is James Willett enrolled in Medicare?
Yes. James Willett 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 James Willett's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Willett reassigns Medicare benefits to Colorado Permanente Medical Group, P.C. (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 James Willett'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 James Willett was last updated on August 16, 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.
# Dr. James G Willett, MD · NPI 1689711962
Hospice and Palliative Medicine physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since January 30, 2007.
## Identity
- **NPI:** 1689711962 (Entity type: Individual)
- **Enumerated:** January 30, 2007
- **Primary specialty:** Internal Medicine - Hospice and Palliative Medicine · taxonomy 207RH0002X
- **State license:** 48913 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 1375 E 19TH AVE, Denver, CO 80218-1114
- **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:** Colorado Permanente Medical Group, P.C. (NPI 1760599724, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 2006
## Record status
- **NPPES last updated:** August 16, 2022
- **Other identifiers:** Other 023165 (CO); Medicaid 52150275 (CO); Other P00939683
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Source: [NPI Profile](https://npiprofile.com/npi/1689711962) · Data from the CMS NPPES public registry.