James Groskreutz, MD
NPI 1548265127 · Gastroenterology Physician · La Crosse, WI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Groskreutz, MD is a Gastroenterology Physician provider in La Crosse, WI (NPI 1548265127).
Provider details
- NPI number
- 1548265127
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD-44523 (IA)
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
21 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
549 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) |
|---|---|---|
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 171 | $5 |
| 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'SG2211 | 79 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 65 | $90 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 58 | $222 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 |
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 |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 148 | 145 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 86 | 85 |
| Omeprazole | 83 | 27 |
| Ursodiol | 58 | 12 |
| Mesalamine | 57 | 15 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 53 | 53 |
| Azathioprine | 35 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-20
- Last updated
- 2020-09-02
- Certified
- 2020-09-02
Frequently asked questions
- What is James Groskreutz's NPI number?
- James Groskreutz's National Provider Identifier (NPI) is 1548265127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Groskreutz's specialty?
- James Groskreutz is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is James Groskreutz located?
- James Groskreutz's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is James Groskreutz's phone number?
- The practice phone number listed in the NPPES registry for James Groskreutz is (608) 782-7300.
- Does James Groskreutz accept Medicare?
- James Groskreutz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Groskreutz's NPI active?
- Yes — James Groskreutz's NPI (1548265127) is active in the NPPES registry as of the last update on 2020-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.