DR. KARL ALFONS ROSEN M.D.
NPI 1982669933
Ophthalmology in Tucson, AZ
About Dr. Karl Alfons Rosen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KARL ALFONS ROSEN M.D. (NPI 1982669933) is an individual ophthalmology provider in Tucson, Arizona, licensed in Arizona (46544) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Arizona College Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses
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. Karl Alfons Rosen 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 Karl Rosen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tucson, AZ 85715
- Reassigned Medicare billing, Arizona enrollment
- 6 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 20
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 85715 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Karl Rosen's NPI number?
The NPI number for Karl Rosen is 1982669933. It was assigned to this individual provider in the NPPES registry on April 20, 2006.
Where is Karl Rosen located?
Karl Rosen practices at 1110 N El Dorado Pl, Tucson, AZ 85715. The listed phone number is (520) 327-5677.
What is Karl Rosen's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Karl Rosen enrolled in Medicare?
Yes. Karl Rosen 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 Karl Rosen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karl Rosen reassigns Medicare benefits to Desert Eye Associates Ltd (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 Karl Rosen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karl Rosen accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Arizona, Imperial Insurance Companies, Inc., Oscar Health and Oscar Health Insurance and 7 other insurers list Karl Rosen 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 Karl Rosen was last updated on September 21, 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.