KEITH GEORGE COOK M. D.
NPI 1437225786
Family Medicine in Thornton, CO
About Keith George Cook M. D. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KEITH GEORGE COOK M. D. (NPI 1437225786) is an individual family medicine provider in Thornton, Colorado, licensed in Colorado (29364) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses
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
Keith George Cook 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 Keith Cook reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Supai, AZ 86435
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Dhhs Ihs Phoenix Area
- 210 clinicians in this Medicare group
Moapa, NV 89025
- Reassigned Medicare billing, Texas enrollment
- 143 clinicians in this Medicare group
Havasu Lake, CA 92363
- Reassigned Medicare billing, Texas enrollment
- 208 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80233 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 2
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 Keith Cook's NPI number?
The NPI number for Keith Cook is 1437225786. It was assigned to this individual provider in the NPPES registry on November 28, 2006.
Where is Keith Cook located?
Keith Cook practices at 3959 E 120th Ave, Thornton, CO 80233. The listed phone number is (303) 452-4343.
What is Keith Cook's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Keith Cook enrolled in Medicare?
Yes. Keith Cook 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 Keith Cook's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Keith Cook reassigns Medicare benefits to 3 organizations: Dhhs Ihs Phoenix (Supai, AZ), Irene Benn Medical Center (Moapa, NV) and Dhhs Ihs Phoenix Area (Havasu Lake, CA). 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 Keith Cook'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 Keith Cook was last updated on May 8, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Keith George Cook, M. D. · NPI 1437225786
Family Medicine physician in Thornton, Colorado. Individual provider, active in the CMS NPPES registry since November 28, 2006.
## Identity
- **NPI:** 1437225786 (Entity type: Individual)
- **Enumerated:** November 28, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 29364 (Colorado)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3959 E 120TH AVE, Thornton, CO 80233-1657
- **Phone:** (303) 452-4343
## 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): Dhhs Ihs Phoenix (NPI 1184901829, Supai, AZ); Irene Benn Medical Center (NPI 1841535317, Moapa, NV); Dhhs Ihs Phoenix Area (NPI 1396022026, Havasu Lake, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Iowa, Rj & L Carver College Of Medicine, class of 1986
## Record status
- **NPPES last updated:** May 8, 2013
- **Other identifiers:** Medicaid 01293646 (CO); Medicare UPIN C14735 (CO); Medicare ID-Type Unspecified 20131
---
Source: [NPI Profile](https://npiprofile.com/npi/1437225786) · Data from the CMS NPPES public registry.