DR. JOHN ALEXANDER VIEHMAN M.D.
NPI 1629205877
Internal Medicine - Infectious Disease in Pittsburgh, PA
About Dr. John Alexander Viehman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN ALEXANDER VIEHMAN M.D. (NPI 1629205877) is an individual infectious disease provider in Pittsburgh, Pennsylvania, licensed in Pennsylvania (MD453968) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Upmc Passavant, and is a graduate of Temple University School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses 2
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 Alexander Viehman M.d. 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 John Viehman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pittsburgh, PA 15213
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 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 6
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upmc Passavant
Acute Care Hospitals · Pittsburgh, PAMagee Womens Hospital Of Upmc Health System
Acute Care Hospitals · Pittsburgh, PAUpmc Presbyterian Shadyside
Acute Care Hospitals · Pittsburgh, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 15213 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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.
PITTSBURGH, PA 15213
PITTSBURGH, PA 15213
PITTSBURGH, PA 15213
PITTSBURGH, PA 15213
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 Viehman's NPI number?
The NPI number for John Viehman is 1629205877. It was assigned to this individual provider in the NPPES registry on June 15, 2009.
Where is John Viehman located?
John Viehman practices at 3601 5th Ave Falk Clinic Suite 700, Pittsburgh, PA 15213. The listed phone number is (412) 647-7228.
What is John Viehman's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is John Viehman enrolled in Medicare?
Yes. John Viehman 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 John Viehman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Viehman reassigns Medicare benefits to University Of Pittsburgh Physicians (Pittsburgh, PA). 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 John Viehman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Viehman accept?
Health plans from CareSource list John Viehman 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 Viehman affiliated with any hospitals?
According to CMS data, John Viehman is affiliated with Upmc Passavant, Magee Womens Hospital Of Upmc Health System and Upmc Presbyterian Shadyside.
When was this NPI record last updated?
The NPPES record for John Viehman was last updated on July 27, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. John Alexander Viehman, M.D. · NPI 1629205877
Infectious Disease physician in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 15, 2009.
## Identity
- **NPI:** 1629205877 (Entity type: Individual)
- **Enumerated:** June 15, 2009
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** MD453968 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3601 5TH AVE, FALK CLINIC SUITE 700, Pittsburgh, PA 15213-3403
- **Phone:** (412) 647-7228
## 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:** University Of Pittsburgh Physicians (NPI 1548433527, Pittsburgh, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** July 27, 2021
- **Other identifiers:** Medicaid 103012349 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1629205877) · Data from the CMS NPPES public registry.