DR. DAVID J KNORR D.O.
NPI 1255310850
Family Medicine in Palmyra, MO
About Dr. David J Knorr D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID J KNORR D.O. (NPI 1255310850) is an individual family medicine provider in Palmyra, Missouri, licensed in Missouri (2001001473) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Blessing Hospital, and maintains a secondary practice location in Hannibal.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
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. David J Knorr D.o. 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 David Knorr reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Palmyra, MO 63461
- Reassigned Medicare billing, Missouri enrollment
- 24 clinicians in this Medicare group
Hannibal, MO 63401
- Reassigned Medicare billing, Missouri enrollment
- 192 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Blessing Hospital
Acute Care Hospitals · Quincy, ILHannibal Regional Hospital
Acute Care Hospitals · Hannibal, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63461 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 6
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 6
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 David Knorr's NPI number?
The NPI number for David Knorr is 1255310850. It was assigned to this individual provider in the NPPES registry on January 11, 2006.
Where is David Knorr located?
David Knorr practices at 6996 County Road 326, Palmyra, MO 63461. The listed phone number is (573) 769-3710.
What is David Knorr's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is David Knorr enrolled in Medicare?
Yes. David Knorr 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 David Knorr's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Knorr reassigns Medicare benefits to 2 organizations: Blessing Corporate Services Inc (Palmyra, MO) and Blessing Hospital (Hannibal, 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 David Knorr's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Knorr accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter of Oklahoma and Ambetter of Tennessee and 1 other insurer list David Knorr as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is David Knorr affiliated with any hospitals?
According to CMS data, David Knorr is affiliated with Blessing Hospital and Hannibal Regional Hospital.
When was this NPI record last updated?
The NPPES record for David Knorr was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days 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. David J Knorr, D.O. · NPI 1255310850
Family Medicine physician in Palmyra, Missouri. Individual provider, active in the CMS NPPES registry since January 11, 2006.
## Identity
- **NPI:** 1255310850 (Entity type: Individual)
- **Enumerated:** January 11, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 2001001473 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 6996 COUNTY ROAD 326, Palmyra, MO 63461-3119
- **Phone:** (573) 769-3710 · **Fax:** (573) 769-3753
## 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): Blessing Corporate Services Inc (NPI 1548368004, Palmyra, MO); Blessing Hospital (NPI 1043724875, Hannibal, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 1998
## Record status
- **NPPES last updated:** September 24, 2026
- **Other identifiers:** Medicaid 245289400 (MO)
---
Source: [NPI Profile](https://npiprofile.com/npi/1255310850) · Data from the CMS NPPES public registry.