James Schlais, M.D.
NPI 1740354745 · Gastroenterology Physician · Wausau, WI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Schlais, M.D. is a Gastroenterology Physician provider in Wausau, WI (NPI 1740354745).
Provider details
- NPI number
- 1740354745
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 29059 (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
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
197 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 68 | $120 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 57 | $216 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 37 | $91 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 18 | $166 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 17 | $142 |
Typical Medicare-allowed amounts for these services range $91–$216 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 128 | 54 |
| Pantoprazole Sodium | 126 | 38 |
| Famotidine | 74 | 26 |
| Dicyclomine Hcl | 38 | 12 |
| Esomeprazole Magnesium | 36 | — |
| Ursodiol | 32 | — |
| Sucralfate | 31 | 14 |
| Azathioprine | 29 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-20
- Last updated
- 2008-08-11
Frequently asked questions
- What is James Schlais's NPI number?
- James Schlais's National Provider Identifier (NPI) is 1740354745, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Schlais's specialty?
- James Schlais is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is James Schlais located?
- James Schlais's practice location on file with NPPES is 411 Westwood Dr, Wausau, WI 54401-4152.
- What is James Schlais's phone number?
- The practice phone number listed in the NPPES registry for James Schlais is (715) 847-2558.
- Does James Schlais accept Medicare?
- James Schlais is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Schlais's NPI active?
- Yes — James Schlais's NPI (1740354745) is active in the NPPES registry as of the last update on 2008-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.