JAMES CLARK MD
NPI 1154954758
Internal Medicine - Rheumatology in Phoenix, AZ
About James Clark Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES CLARK MD (NPI 1154954758) is an individual rheumatology provider in Phoenix, Arizona, licensed in Georgia (38204) and active in the NPI registry since February 2020. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
James Clark Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show James Clark reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dallas, TX 75244
- Reassigned Medicare billing, Arizona enrollment
- 556 clinicians in this Medicare group
Dallas, TX 75244
- Reassigned Medicare billing, Georgia and Montana enrollments
- 488 clinicians in this Medicare group
Great Falls, MT 59405
- Reassigned Medicare billing, Montana enrollment
- 637 clinicians in this Medicare group
Hoffman Estates, IL 60169
- Reassigned Medicare billing, Illinois enrollment
- 9 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 85014 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHOENIX, AZ 85014
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 James Clark's NPI number?
The NPI number for James Clark is 1154954758. It was assigned to this individual provider in the NPPES registry on February 21, 2020.
Where is James Clark located?
James Clark practices at 5333 N 7th St Ste B112, Phoenix, AZ 85014. The listed phone number is (480) 571-6761.
What is James Clark's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is James Clark enrolled in Medicare?
Yes. James Clark is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for James Clark's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Clark reassigns Medicare benefits to 4 organizations: Signify Health, LLC (Dallas, TX), Signify Health Medical Associates, PLLC (Dallas, TX), Benefis Hospitals Inc (Great Falls, MT) and Pain Therapy Associates Ltd. (Hoffman Estates, IL). 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 James Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for James Clark was last updated on August 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# James Clark, MD · NPI 1154954758
Rheumatology physician in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since February 21, 2020.
## Identity
- **NPI:** 1154954758 (Entity type: Individual)
- **Enumerated:** February 21, 2020
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 38204 (Georgia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5333 N 7TH ST STE B112, Phoenix, AZ 85014-2840
- **Phone:** (480) 571-6761
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Signify Health, LLC (NPI 1689158487, Dallas, TX); Signify Health Medical Associates, PLLC (NPI 1750845863, Dallas, TX); Benefis Hospitals Inc (NPI 1780968974, Great Falls, MT); Pain Therapy Associates Ltd. (NPI 1053425454, Hoffman Estates, IL) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 5, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1154954758) · Data from the CMS NPPES public registry.