DR. JOHN R FUNK MD
NPI 1124011820
Anesthesiology in Tucson, AZ
About Dr. John R Funk Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN R FUNK MD (NPI 1124011820) is an individual anesthesiology provider in Tucson, Arizona, licensed in Arizona (25362) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Dr. John R Funk 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 Reassignments
5Medicare enrollment records show John Funk reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tucson, AZ 85719
- Reassigned Medicare billing, Arizona enrollment
- 86 clinicians in this Medicare group
Tucson, AZ 85712
- Reassigned Medicare billing, Arizona enrollment
- 264 clinicians in this Medicare group
Tucson, AZ 85747
- Reassigned Medicare billing, Arizona enrollment
- 204 clinicians in this Medicare group
Sierra Vista, AZ 85635
- Reassigned Medicare billing, Arizona enrollment
- 132 clinicians in this Medicare group
Fresno, CA 93720
- Reassigned Medicare billing, Arizona enrollment
- 75 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.
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.
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 Funk's NPI number?
The NPI number for John Funk is 1124011820. It was assigned to this individual provider in the NPPES registry on August 26, 2005.
Where is John Funk located?
John Funk practices at 3390 N Campbell Ave Ste 110, Tucson, AZ 85719. The listed phone number is (520) 795-7650.
What is John Funk's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Funk enrolled in Medicare?
Yes. John Funk 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 John Funk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Funk reassigns Medicare benefits to 5 organizations: Southern Arizona Anesthesia Services, PC (Tucson, AZ), Ias Arizona PLLC (Tucson, AZ), Hospitalist Medicine Physicians Of Arizona - Nogales (Tucson, AZ), Northeastern Anesthesia PLLC (Sierra Vista, AZ) and Valley Regional Anesthesia Associates Inc (Fresno, CA). 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 John Funk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Funk accept?
Health plans from Blue Cross Blue Shield of Arizona and Imperial Insurance Companies, Inc. list John Funk 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 John Funk was last updated on August 14, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 R Funk, MD · NPI 1124011820
Anesthesiology physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since August 26, 2005.
## Identity
- **NPI:** 1124011820 (Entity type: Individual)
- **Enumerated:** August 26, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 25362 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 3390 N CAMPBELL AVE, STE 110, Tucson, AZ 85719-2380
- **Phone:** (520) 795-7650 · **Fax:** (520) 325-1622
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Southern Arizona Anesthesia Services, PC (NPI 1912999343, Tucson, AZ); Ias Arizona PLLC (NPI 1689359747, Tucson, AZ); Hospitalist Medicine Physicians Of Arizona - Nogales (NPI 1487251799, Tucson, AZ); Northeastern Anesthesia PLLC (NPI 1487956504, Sierra Vista, AZ); Valley Regional Anesthesia Associates Inc (NPI 1578272415, Fresno, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 1993
## Record status
- **NPPES last updated:** August 14, 2007
- **Other identifiers:** Medicare UPIN G51637 (AZ); Medicare ID-Type Unspecified 27447 (AZ)
---
Source: [NPI Profile](https://npiprofile.com/npi/1124011820) · Data from the CMS NPPES public registry.