DR. CHARLES MILTON COOK MD
NPI 1275508574
Anesthesiology in Springfield, OR
About Dr. Charles Milton Cook Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHARLES MILTON COOK MD (NPI 1275508574) is an individual anesthesiology provider in Springfield, Oregon, licensed in Oregon (MD14613) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Mckenzie-willamette Medical Center, and is a graduate of Loma Linda University School Of Medicine (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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. Charles Milton Cook 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 Charles Cook reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, OR 97477
- Reassigned Medicare billing, Oregon enrollment
- 123 clinicians in this Medicare group
Portland, OR 97205
- Reassigned Medicare billing, Oregon enrollment
- 271 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 2
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mckenzie-Willamette Medical Center
Acute Care Hospitals · Springfield, OROther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SPRINGFIELD, OR 97477
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 Charles Cook's NPI number?
The NPI number for Charles Cook is 1275508574. It was assigned to this individual provider in the NPPES registry on February 21, 2006.
Where is Charles Cook located?
Charles Cook practices at 3333 Riverbend Dr, Springfield, OR 97477. The listed phone number is (541) 222-3154.
What is Charles Cook's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Charles Cook enrolled in Medicare?
Yes. Charles 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 Charles Cook's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Cook reassigns Medicare benefits to 2 organizations: Northwest Anesthesia Physicians PC (Springfield, OR) and Oregon Anesthesiology Group PC (Portland, OR). 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 Charles Cook's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Charles Cook affiliated with any hospitals?
According to CMS data, Charles Cook is affiliated with Mckenzie-Willamette Medical Center.
When was this NPI record last updated?
The NPPES record for Charles Cook was last updated on October 27, 2020. 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. Charles Milton Cook, MD · NPI 1275508574
Anesthesiology physician in Springfield, Oregon. Individual provider, active in the CMS NPPES registry since February 21, 2006.
## Identity
- **NPI:** 1275508574 (Entity type: Individual)
- **Enumerated:** February 21, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD14613 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3333 RIVERBEND DR, Springfield, OR 97477-8800
- **Phone:** (541) 222-3154 · **Fax:** (541) 222-3359
## 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): Northwest Anesthesia Physicians PC (NPI 1770531196, Springfield, OR); Oregon Anesthesiology Group PC (NPI 1477527786, Portland, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 1983
## Record status
- **NPPES last updated:** October 27, 2020
- **Other identifiers:** Other 050005893 (OR); Medicaid 1020130 (WA); Medicaid 178970 (OR); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1275508574) · Data from the CMS NPPES public registry.