Stephen Viltrakis, M D
NPI 1992891295 · Diagnostic Radiology Physician · Fortuna, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Viltrakis, M D is a Diagnostic Radiology Physician provider in Fortuna, CA (NPI 1992891295).
Provider details
- NPI number
- 1992891295
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M D
- Sex
- Male
- Sole proprietor
- Yes
- License
- G72357 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
923 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 | 286 | $36 |
| Screening 3d Breast Mammography77063 | 257 | $28 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 74 | $28 |
| X-Ray of Chest, 1 View71045 | 60 | $8 |
| Diagnostic Mammography of Both Breasts77066 | 59 | $47 |
| X-Ray of Chest, 2 Views71046 | 31 | $10 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Viltrakis's NPI number?
- Stephen Viltrakis's National Provider Identifier (NPI) is 1992891295, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Viltrakis's specialty?
- Stephen Viltrakis is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Viltrakis located?
- Stephen Viltrakis's practice location on file with NPPES is 3300 Renner Dr., Fortuna, CA 95540.
- What is Stephen Viltrakis's phone number?
- The practice phone number listed in the NPPES registry for Stephen Viltrakis is (707) 725-3361.
- Does Stephen Viltrakis accept Medicare?
- Stephen Viltrakis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Viltrakis's NPI active?
- Yes — Stephen Viltrakis's NPI (1992891295) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.