ALEXANDER L WALLNER MD
NPI 1912439142
Hospitalist in Mt. Vernon, OH
About Alexander L Wallner Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER L WALLNER MD (NPI 1912439142) is an individual hospitalist provider in Mt. Vernon, Ohio, licensed in Ohio (35.137352) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Riverside Methodist Hospital, and is a graduate of Temple University School Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses 2
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
Alexander L Wallner 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 Reassignment
Medicare enrollment records show Alexander Wallner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mount Vernon, OH 43050
- Reassigned Medicare billing, Ohio enrollment
- 191 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Riverside Methodist Hospital
Acute Care Hospitals · Columbus, OHGrant Medical Center
Acute Care Hospitals · Columbus, OHKnox Community Hospital
Acute Care Hospitals · Mount Vernon, OHOhio State University State Health System
Acute Care Hospitals · Columbus, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 43050 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Alexander Wallner's NPI number?
The NPI number for Alexander Wallner is 1912439142. It was assigned to this individual provider in the NPPES registry on March 28, 2017.
Where is Alexander Wallner located?
Alexander Wallner practices at 1330 Coshocton Ave Knox Community Hospital, Mt. Vernon, OH 43050. The listed phone number is (740) 397-5400.
What is Alexander Wallner's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Alexander Wallner enrolled in Medicare?
Yes. Alexander Wallner 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 organization bills Medicare for Alexander Wallner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Wallner reassigns Medicare benefits to Knox Community Hospital (Mount Vernon, OH). The 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 Alexander Wallner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Wallner accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 1 other insurer list Alexander Wallner 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 Alexander Wallner affiliated with any hospitals?
According to CMS data, Alexander Wallner is affiliated with Riverside Methodist Hospital, Grant Medical Center, Knox Community Hospital and Ohio State University State Health System.
When was this NPI record last updated?
The NPPES record for Alexander Wallner was last updated on October 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Alexander L Wallner, MD · NPI 1912439142
Hospitalist physician in Mt. Vernon, Ohio. Individual provider, active in the CMS NPPES registry since March 28, 2017.
## Identity
- **NPI:** 1912439142 (Entity type: Individual)
- **Enumerated:** March 28, 2017
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 35.137352 (Ohio)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1330 COSHOCTON AVE KNOX COMMUNITY HOSPITAL, Mt. Vernon, OH 43050
- **Phone:** (740) 397-5400 · **Fax:** (740) 399-3706
## 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:** Knox Community Hospital (NPI 1003065681, Mount Vernon, OH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** October 9, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1912439142) · Data from the CMS NPPES public registry.