DR. RYAN FRIEDER D.O.
NPI 1083750509
Anesthesiology in Tucson, AZ
About Dr. Ryan Frieder D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RYAN FRIEDER D.O. (NPI 1083750509) is an individual anesthesiology provider in Tucson, Arizona, licensed in Arizona (006358) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Saint Alphonsus Regional Medical Center, and is a graduate of Arizona College Of Osteopathic Medicine Mid Western University (2002).
NPPES Registry Identity
Specialties & Licenses 2
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. Ryan Frieder D.o. 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
2Medicare enrollment records show Ryan Frieder reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boise, ID 83706
- Reassigned Medicare billing, Idaho enrollment
- 188 clinicians in this Medicare group
Boise, ID 83706
- Reassigned Medicare billing, Idaho enrollment
- Medicare enrollment name: Boise Anesthesia, P A
- 18 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 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Saint Alphonsus Regional Medical Center
Acute Care Hospitals · Boise, IDOther Providers at the Same Location NPPES
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 Ryan Frieder's NPI number?
The NPI number for Ryan Frieder is 1083750509. It was assigned to this individual provider in the NPPES registry on January 30, 2007.
Where is Ryan Frieder located?
Ryan Frieder practices at 3390 N. Campbell Ave. Suite #110, Tucson, AZ 85719. The listed phone number is (520) 795-7650.
What is Ryan Frieder's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Ryan Frieder enrolled in Medicare?
Yes. Ryan Frieder 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 Ryan Frieder's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Frieder reassigns Medicare benefits to 2 organizations: St Alphonsus Professional Medical Services LLC (Boise, ID) and Boise Anesthesia, PA (Boise, ID). 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 Ryan Frieder's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ryan Frieder affiliated with any hospitals?
According to CMS data, Ryan Frieder is affiliated with Saint Alphonsus Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Ryan Frieder was last updated on December 4, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. Ryan Frieder, D.O. · NPI 1083750509
Anesthesiology physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since January 30, 2007.
## Identity
- **NPI:** 1083750509 (Entity type: Individual)
- **Enumerated:** January 30, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 006358 (Arizona)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3390 N. CAMPBELL AVE., SUITE #110, Tucson, AZ 85719-2380
- **Phone:** (520) 795-7650
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): St Alphonsus Professional Medical Services LLC (NPI 1386677524, Boise, ID); Boise Anesthesia, PA (NPI 1740239599, Boise, ID) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Arizona College Of Osteopathic Medicine Mid Western University, class of 2002
## Record status
- **NPPES last updated:** December 4, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1083750509) · Data from the CMS NPPES public registry.