DR. JOHN T. ADER DO-RHEUMATOLOGY
NPI 1992789564
Internal Medicine - Rheumatology in Post Falls, ID
About Dr. John T. Ader Do-rheumatology NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN T. ADER DO-RHEUMATOLOGY (NPI 1992789564) is an individual rheumatology provider in Post Falls, Idaho, licensed in Idaho (O-0634) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with St Luke's Regional Medical Center, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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. John T. Ader Do-rheumatology 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
7Medicare enrollment records show John Ader reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
La Crosse, WI 54601
- Reassigned Medicare billing, Wisconsin enrollment
- 1,457 clinicians in this Medicare group
Memphis, TN 38120
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: Campbell Clinic, PC
- 247 clinicians in this Medicare group
West Monroe, LA 71292
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 clinicians in this Medicare group
Avon, OH 44011
- Reassigned Medicare billing, Ohio enrollment
- 7,608 clinicians in this Medicare group
Cleveland, OH 44195
- Reassigned Medicare billing, Idaho enrollment
- 2 clinicians in this Medicare group
Rogersville, TN 37857
- Reassigned Medicare billing, Tennessee enrollment
- 31 clinicians in this Medicare group
Richmond, VA 23229
- Reassigned Medicare billing, Idaho enrollment
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 4
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Luke's Regional Medical Center
Acute Care Hospitals · Boise, IDSaint Alphonsus Regional Medical Center
Acute Care Hospitals · Boise, IDSaint Alphonsus Medical Center - Nampa
Acute Care Hospitals · Nampa, IDSt Luke's Nampa Medical Center
Acute Care Hospitals · Nampa, IDCleveland Clinic
Acute Care Hospitals · Cleveland, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 83854 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 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
POST FALLS, ID 83854
POST FALLS, ID 83854
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 John Ader's NPI number?
The NPI number for John Ader is 1992789564. It was assigned to this individual provider in the NPPES registry on December 6, 2005.
Where is John Ader located?
John Ader practices at 784 S Clearwater Loop Ste B, Post Falls, ID 83854. The listed phone number is (833) 767-4386.
What is John Ader's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is John Ader enrolled in Medicare?
Yes. John Ader 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 John Ader's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Ader reassigns Medicare benefits to 7 organizations: Gundersen Lutheran Medical Center Inc (La Crosse, WI), Titan Orthopedics Of Memphis, PLLC (Memphis, TN), Ochsner Clinic LLC (West Monroe, LA), The Cleveland Clinic Foundation (Avon, OH), Cleveland Clinic Health Services Professional Association, Inc (Cleveland, OH) and 2 more organizations, listed in the Medicare section above. 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 John Ader's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Ader accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Cigna Healthcare, HealthPartners and Oscar Insurance Corporation of Ohio and 1 other insurer list John Ader 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 John Ader affiliated with any hospitals?
According to CMS data, John Ader is affiliated with St Luke's Regional Medical Center, Saint Alphonsus Regional Medical Center, Saint Alphonsus Medical Center - Nampa, St Luke's Nampa Medical Center and Cleveland Clinic.
When was this NPI record last updated?
The NPPES record for John Ader was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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. John T. Ader, DO-RHEUMATOLOGY · NPI 1992789564
Rheumatology physician in Post Falls, Idaho. Individual provider, active in the CMS NPPES registry since December 6, 2005.
## Identity
- **NPI:** 1992789564 (Entity type: Individual)
- **Enumerated:** December 6, 2005
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** O-0634 (Idaho)
- **Sole proprietor:** No
## Practice location
- **Address:** 784 S CLEARWATER LOOP STE B, Post Falls, ID 83854-9599
- **Phone:** (833) 767-4386 · **Fax:** (833) 874-0554
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Gundersen Lutheran Medical Center Inc (NPI 1225873458, La Crosse, WI); Titan Orthopedics Of Memphis, PLLC (NPI 1013463694, Memphis, TN); Ochsner Clinic LLC (NPI 1932598695, West Monroe, LA); The Cleveland Clinic Foundation (NPI 1184428336, Avon, OH); Cleveland Clinic Health Services Professional Association, Inc (NPI 1770082471, Cleveland, OH); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 2000
## Record status
- **NPPES last updated:** January 9, 2026
- **Other identifiers:** Medicaid 1992789564 (ID)
---
Source: [NPI Profile](https://npiprofile.com/npi/1992789564) · Data from the CMS NPPES public registry.