Siobhan Alexander, M.D.
NPI 1871988394 · Diagnostic Radiology Physician · Roseville, MN
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siobhan Alexander, M.D. is a Diagnostic Radiology Physician provider in Roseville, MN (NPI 1871988394).
Provider details
- NPI number
- 1871988394
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 79044 (MN)
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
11 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
2,676 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 3d Breast Mammography77063 | 589 | $48 |
| Screening Mammography77067 | 589 | $118 |
| Screening 3d Breast Mammography77063 | 224 | $26 |
| Screening Mammography77067 | 222 | $34 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 205 | $44 |
| X-Ray of Chest, 1 View71045 | 142 | $8 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-01
- Last updated
- 2025-08-29
- Certified
- 2025-08-29
Frequently asked questions
- What is Siobhan Alexander's NPI number?
- Siobhan Alexander's National Provider Identifier (NPI) is 1871988394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siobhan Alexander's specialty?
- Siobhan Alexander is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Siobhan Alexander located?
- Siobhan Alexander's practice location on file with NPPES is 2355 Hwy 36 W, Roseville, MN 55113.
- What is Siobhan Alexander's phone number?
- The practice phone number listed in the NPPES registry for Siobhan Alexander is (651) 292-2000.
- Does Siobhan Alexander accept Medicare?
- Siobhan Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siobhan Alexander's NPI active?
- Yes — Siobhan Alexander's NPI (1871988394) is active in the NPPES registry as of the last update on 2025-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.