John Mengshol, MD
NPI 1932255544 · Gastroenterology Physician · Louisville, CO
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mengshol, MD is a Gastroenterology Physician provider in Louisville, CO (NPI 1932255544).
Provider details
- NPI number
- 1932255544
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 44034 (CO)
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
412 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 | 85 | $98 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 63 | $118 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 60 | $248 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 60 | $133 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 38 | $139 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 136 | 135 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 99 | 98 |
| Omeprazole | 66 | 28 |
| Pantoprazole Sodium | 29 | — |
| Linaclotidebrand: Linzess | 22 | — |
| Esomeprazole Magnesium | 19 | — |
| Famotidine | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-26
- Last updated
- 2016-06-28
Frequently asked questions
- What is John Mengshol's NPI number?
- John Mengshol's National Provider Identifier (NPI) is 1932255544, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mengshol's specialty?
- John Mengshol is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Mengshol located?
- John Mengshol's practice location on file with NPPES is 382 S Arthur Ave, Louisville, CO 80027-3094.
- What is John Mengshol's phone number?
- The practice phone number listed in the NPPES registry for John Mengshol is (303) 604-5000.
- Does John Mengshol accept Medicare?
- John Mengshol is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mengshol's NPI active?
- Yes — John Mengshol's NPI (1932255544) is active in the NPPES registry as of the last update on 2016-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.