Pierre Blais, M.D.
NPI 1609138452 · Gastroenterology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Pierre Blais, M.D. is a Gastroenterology Physician provider in Seattle, WA (NPI 1609138452).
Provider details
- NPI number
- 1609138452
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- BP10043076 (TX)
Specialties & taxonomies
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
14 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
537 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 143 | $264 |
| Study of Esophagus to Assess Movement91010 | 79 | $67 |
| Monitoring and Recording of Esophageal Function Through Nasal Tube With Electrode91037 | 48 | $50 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 38 | $117 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 34 | $114 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetron Hcl | 263 | 244 |
| Omeprazole | 135 | 51 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 117 | 116 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 91 | 90 |
| Nortriptyline Hcl | 79 | 24 |
| Metronidazole | 65 | 42 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 47 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-06-07
- Last updated
- 2018-09-12
Frequently asked questions
- What is Pierre Blais's NPI number?
- Pierre Blais's National Provider Identifier (NPI) is 1609138452, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Pierre Blais's specialty?
- Pierre Blais is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Pierre Blais located?
- Pierre Blais's practice location on file with NPPES is 11027 Meridian Ave N Ste 100, Seattle, WA 98133-1705.
- What is Pierre Blais's phone number?
- The practice phone number listed in the NPPES registry for Pierre Blais is (206) 365-4492.
- Does Pierre Blais accept Medicare?
- Pierre Blais is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Pierre Blais's NPI active?
- Yes — Pierre Blais's NPI (1609138452) is active in the NPPES registry as of the last update on 2018-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.