DR. RUSSELL D DEIDIKER MD
NPI 1841265345
Pathology - Anatomic Pathology & Clinical Pathology in Farmington, MO
About Dr. Russell D Deidiker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RUSSELL D DEIDIKER MD (NPI 1841265345) is an individual anatomic pathology & clinical pathology provider in Farmington, Missouri, licensed in Missouri (113238) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Southeast, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (1991).
NPPES Registry Identity
Specialties & Licenses
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. Russell D Deidiker 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
4Medicare enrollment records show Russell Deidiker reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 119 clinicians in this Medicare group
Cape Girardeau, MO 63701
- Reassigned Medicare billing, Missouri enrollment
- 470 clinicians in this Medicare group
Saint Louis, MO 63132
- Reassigned Medicare billing, Missouri enrollment
- 3 clinicians in this Medicare group
Clive, IA 50325
- Reassigned Medicare billing, Iowa enrollment
- 37 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 11
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital Southeast
Acute Care Hospitals · Cape Girardeau, MOMissouri Delta Medical Center
Acute Care Hospitals · Sikeston, MOParkland Health Center
Acute Care Hospitals · Farmington, MOSaint Francis Medical Center
Acute Care Hospitals · Cape Girardeau, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63640 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FARMINGTON, MO 63640
FARMINGTON, MO 63640
FARMINGTON, MO 63640
FARMINGTON, MO 63640
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 Russell Deidiker's NPI number?
The NPI number for Russell Deidiker is 1841265345. It was assigned to this individual provider in the NPPES registry on February 20, 2006.
Where is Russell Deidiker located?
Russell Deidiker practices at 1212 Weber Rd Suite 205, Farmington, MO 63640. The listed phone number is (573) 756-4581.
What is Russell Deidiker's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Russell Deidiker enrolled in Medicare?
Yes. Russell Deidiker 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 Russell Deidiker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Russell Deidiker reassigns Medicare benefits to 4 organizations: American Multispecialty Group Inc. (Saint Louis, MO), Southeast Missouri Hospital Physicians, LLC (Cape Girardeau, MO), Mid-America Pathology Consultants, LLC (Saint Louis, MO) and Iowa Digestive Disease Center P.C. (Clive, IA). 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 Russell Deidiker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Russell Deidiker accept?
Health plans from Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Russell Deidiker 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 Russell Deidiker affiliated with any hospitals?
According to CMS data, Russell Deidiker is affiliated with Mercy Hospital Southeast, Missouri Delta Medical Center, Parkland Health Center and Saint Francis Medical Center.
When was this NPI record last updated?
The NPPES record for Russell Deidiker was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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. Russell D Deidiker, MD · NPI 1841265345
Anatomic Pathology & Clinical Pathology physician in Farmington, Missouri. Individual provider, active in the CMS NPPES registry since February 20, 2006.
## Identity
- **NPI:** 1841265345 (Entity type: Individual)
- **Enumerated:** February 20, 2006
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** 113238 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1212 WEBER RD, SUITE 205, Farmington, MO 63640-3325
- **Phone:** (573) 756-4581 · **Fax:** (573) 756-7197
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): American Multispecialty Group Inc. (NPI 1972559532, Saint Louis, MO); Southeast Missouri Hospital Physicians, LLC (NPI 1558311522, Cape Girardeau, MO); Mid-America Pathology Consultants, LLC (NPI 1194193326, Saint Louis, MO); Iowa Digestive Disease Center P.C. (NPI 1275571747, Clive, IA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Tennessee, Hsc, College Of Medicine, class of 1991
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 208729707 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1841265345) · Data from the CMS NPPES public registry.