James Clark, MD
NPI 1154954758 · Rheumatology Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Clark, MD is a Rheumatology Physician provider in Phoenix, AZ (NPI 1154954758).
Provider details
- NPI number
- 1154954758
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 38204 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$170 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1409 Satilla BlvdWaycross, GA 31501-4322Phone: (912) 816-3455
- 1401 25th St SGreat Falls, MT 59405-5183Phone: (406) 731-8888Fax: (406) 731-8318
Registry dates
- Enumerated
- 2020-02-21
- Last updated
- 2024-08-05
- Certified
- 2024-08-05
Frequently asked questions
- What is James Clark's NPI number?
- James Clark's National Provider Identifier (NPI) is 1154954758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Clark's specialty?
- James Clark is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is James Clark located?
- James Clark's practice location on file with NPPES is 5333 N 7th St Ste B112, Phoenix, AZ 85014-2840.
- What is James Clark's phone number?
- The practice phone number listed in the NPPES registry for James Clark is (480) 571-6761.
- Does James Clark accept Medicare?
- James Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Clark's NPI active?
- Yes — James Clark's NPI (1154954758) is active in the NPPES registry as of the last update on 2024-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.