STEVEN R KNOPER MD
NPI 1427157718
Internal Medicine - Pulmonary Disease in Tucson, AZ
About Steven R Knoper Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEVEN R KNOPER MD (NPI 1427157718) is an individual pulmonary disease provider in Tucson, Arizona, licensed in Arizona (16883) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Steven R Knoper 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 Steven Knoper reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tucson, AZ 85711
- Reassigned Medicare billing, Arizona enrollment
- 1,514 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85724 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.
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TUCSON, AZ 85724
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 Steven Knoper's NPI number?
The NPI number for Steven Knoper is 1427157718. It was assigned to this individual provider in the NPPES registry on September 22, 2006.
Where is Steven Knoper located?
Steven Knoper practices at 1501 N Campbell Ave, Tucson, AZ 85724. The listed phone number is (520) 694-8888.
What is Steven Knoper's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Steven Knoper enrolled in Medicare?
Yes. Steven Knoper 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 Steven Knoper's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Knoper reassigns Medicare benefits to Banner-University Medical Group (Tucson, AZ). 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 Steven Knoper's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Steven Knoper accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and UnitedHealthcare list Steven Knoper 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.
When was this NPI record last updated?
The NPPES record for Steven Knoper was last updated on January 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Steven R Knoper, MD · NPI 1427157718
Pulmonary Disease physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since September 22, 2006.
## Identity
- **NPI:** 1427157718 (Entity type: Individual)
- **Enumerated:** September 22, 2006
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** 16883 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 1501 N CAMPBELL AVE, Tucson, AZ 85724-0001
- **Phone:** (520) 694-8888 · **Fax:** (520) 694-2353
## 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:** Banner-University Medical Group (NPI 1932708328, Tucson, AZ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 1983
## Record status
- **NPPES last updated:** January 11, 2008
- **Other identifiers:** Medicaid 285496 (AZ); Medicare PIN Z29WCGCR06 (AZ); Medicare UPIN E82246
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Source: [NPI Profile](https://npiprofile.com/npi/1427157718) · Data from the CMS NPPES public registry.