Siobhan Byrne, M.D.
NPI 1417915836 · Gastroenterology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siobhan Byrne, M.D. is a Gastroenterology Physician provider in Madison, WI (NPI 1417915836).
Provider details
- NPI number
- 1417915836
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 50303 (WI)
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
20 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
329 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) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 64 | $145 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 57 | $144 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 37 | $215 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 35 | $90 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 29 | $229 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 217 | 213 |
| Mesalamine | 100 | 17 |
| Azathioprine | 55 | — |
| Omeprazole | 38 | — |
| Adalimumabbrand: Humira(cf) Pen | 24 | — |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 21 | 20 |
| Budesonidebrand: Budesonide Dr | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-03
- Last updated
- 2021-01-05
- Certified
- 2021-01-05
Frequently asked questions
- What is Siobhan Byrne's NPI number?
- Siobhan Byrne's National Provider Identifier (NPI) is 1417915836, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siobhan Byrne's specialty?
- Siobhan Byrne is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Siobhan Byrne located?
- Siobhan Byrne's practice location on file with NPPES is 20 S Park St, Madison, WI 53715-1348.
- What is Siobhan Byrne's phone number?
- The practice phone number listed in the NPPES registry for Siobhan Byrne is (608) 287-2680.
- Does Siobhan Byrne accept Medicare?
- Siobhan Byrne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siobhan Byrne's NPI active?
- Yes — Siobhan Byrne's NPI (1417915836) is active in the NPPES registry as of the last update on 2021-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.