DR. WILLIAM J KNOX DO
NPI 1205989084
Anesthesiology in Rolla, MO
About Dr. William J Knox Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM J KNOX DO (NPI 1205989084) is an individual anesthesiology provider in Rolla, Missouri, licensed in Missouri (2006002690) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Phelps County Regional Medical Center, and is a graduate of Kansas City Medical College (2004).
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
Dr. William J Knox Do 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 William Knox reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rolla, MO 65401
- Reassigned Medicare billing, Missouri enrollment
- 28 clinicians in this Medicare group
Rolla, MO 65401
- Reassigned Medicare billing, Missouri enrollment
- 145 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 7
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Phelps County Regional Medical Center
Acute Care Hospitals · Rolla, MOTexas County Memorial Hospital
Acute Care Hospitals · Houston, MOMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
ROLLA, MO 65401
ROLLA, MO 65401
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 William Knox's NPI number?
The NPI number for William Knox is 1205989084. It was assigned to this individual provider in the NPPES registry on January 18, 2007.
Where is William Knox located?
William Knox practices at 1000 W 10th St, Rolla, MO 65401. The listed phone number is (573) 458-7879.
What is William Knox's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is William Knox enrolled in Medicare?
Yes. William Knox 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 William Knox's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Knox reassigns Medicare benefits to 2 organizations: Phelps County Regional Medical Center (Rolla, MO) and Pcrmc Medical Group, Inc (Rolla, MO). 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 William Knox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Knox affiliated with any hospitals?
According to CMS data, William Knox is affiliated with Phelps County Regional Medical Center and Texas County Memorial Hospital.
When was this NPI record last updated?
The NPPES record for William Knox was last updated on February 10, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. William J Knox, DO · NPI 1205989084
Anesthesiology physician in Rolla, Missouri. Individual provider, active in the CMS NPPES registry since January 18, 2007.
## Identity
- **NPI:** 1205989084 (Entity type: Individual)
- **Enumerated:** January 18, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 2006002690 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 W 10TH ST, Rolla, MO 65401-2905
- **Phone:** (573) 458-7879 · **Fax:** (573) 458-8484
## 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): Phelps County Regional Medical Center (NPI 1891766051, Rolla, MO); Pcrmc Medical Group, Inc (NPI 1508056540, Rolla, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City Medical College, class of 2004
## Record status
- **NPPES last updated:** February 10, 2015
- **Other identifiers:** Medicare UPIN I70282; Medicare PIN 000014153 (MO); Medicaid 207612102 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1205989084) · Data from the CMS NPPES public registry.