DR. JOSEPH JASON WELSER M.D.
NPI 1538428958
Urology in Phoenix, AZ
About Dr. Joseph Jason Welser M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOSEPH JASON WELSER M.D. (NPI 1538428958) is an individual urology provider in Phoenix, Arizona, licensed in Arizona (56435) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Texas Southwestern Medical School At Dallas (2012).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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. Joseph Jason Welser 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 Reassignments
2Medicare enrollment records show Joseph Welser reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Phoenix, AZ 85004
- Reassigned Medicare billing, Arizona enrollment
- 822 clinicians in this Medicare group
Orange Park, FL 32073
- Reassigned Medicare billing, Florida enrollment
- 44 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85012 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PHOENIX, AZ 85012
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 Joseph Welser's NPI number?
The NPI number for Joseph Welser is 1538428958. It was assigned to this individual provider in the NPPES registry on May 4, 2012.
Where is Joseph Welser located?
Joseph Welser practices at 650 E Indian School Rd, Phoenix, AZ 85012. The listed phone number is (602) 277-5551.
What is Joseph Welser's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Joseph Welser enrolled in Medicare?
Yes. Joseph Welser 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 Joseph Welser's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Welser reassigns Medicare benefits to 2 organizations: Honorhealth Ambulatory (Phoenix, AZ) and Florida Physician Specialists LLC (Orange Park, FL). 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 Joseph Welser's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Welser accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list Joseph Welser 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 Joseph Welser was last updated on April 27, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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. Joseph Jason Welser, M.D. · NPI 1538428958
Urology physician in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since May 4, 2012.
## Identity
- **NPI:** 1538428958 (Entity type: Individual)
- **Enumerated:** May 4, 2012
- **Primary specialty:** Urology · taxonomy 208800000X
- **State license:** 56435 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 650 E INDIAN SCHOOL RD, Phoenix, AZ 85012-1839
- **Phone:** (602) 277-5551
## 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): Honorhealth Ambulatory (NPI 1548886500, Phoenix, AZ); Florida Physician Specialists LLC (NPI 1932444254, Orange Park, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Southwestern Medical School At Dallas, class of 2012
## Record status
- **NPPES last updated:** April 27, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1538428958) · Data from the CMS NPPES public registry.