James Stepenosky, D.O.
NPI 1598738577 · Diagnostic Radiology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Stepenosky, D.O. is a Diagnostic Radiology Physician provider in Scottsdale, AZ (NPI 1598738577).
Provider details
- NPI number
- 1598738577
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 39748021 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
2,825 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Screening Mammography77067 | 504 | $37 |
| Screening 3d Breast Mammography77063 | 502 | $29 |
| Screening Mammography77067 | 467 | $123 |
| Screening 3d Breast Mammography77063 | 466 | $51 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 189 | $29 |
| Diagnostic Mammography of Both Breasts77066 | 141 |
Practice location
Mailing address
Additional practice locations (1)
- 200 W Arbor DrSan Diego, CA 92103-9000Phone: (800) 926-8273Fax: (888) 539-8781
Registry dates
- Enumerated
- 2006-02-09
- Last updated
- 2023-06-14
- Certified
- 2023-06-14
Frequently asked questions
- What is James Stepenosky's NPI number?
- James Stepenosky's National Provider Identifier (NPI) is 1598738577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Stepenosky's specialty?
- James Stepenosky is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is James Stepenosky located?
- James Stepenosky's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259-5452.
- What is James Stepenosky's phone number?
- The practice phone number listed in the NPPES registry for James Stepenosky is (480) 301-8000.
- Does James Stepenosky accept Medicare?
- James Stepenosky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Stepenosky's NPI active?
- Yes — James Stepenosky's NPI (1598738577) is active in the NPPES registry as of the last update on 2023-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.