Bryan Feyen, DO
NPI 1811042310 · Gastroenterology Physician · Ames, IA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bryan Feyen, DO is a Gastroenterology Physician provider in Ames, IA (NPI 1811042310).
Provider details
- NPI number
- 1811042310
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 03430 (IA)
Specialties & taxonomies
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
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
682 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 Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 114 | $79 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 88 | $134 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 80 | $233 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 51 | $77 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 50 | $123 |
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 |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 284 | 277 |
| Ondansetronbrand: Ondansetron Odt | 194 | 185 |
| Omeprazole | 134 | 48 |
| Ondansetron Hcl | 83 | 83 |
| Pantoprazole Sodium | 57 | 25 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Gavilyte-N | 44 | 43 |
| Sucralfate | 38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-24
- Last updated
- 2016-02-09
Frequently asked questions
- What is Bryan Feyen's NPI number?
- Bryan Feyen's National Provider Identifier (NPI) is 1811042310, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bryan Feyen's specialty?
- Bryan Feyen is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Bryan Feyen located?
- Bryan Feyen's practice location on file with NPPES is 1215 Duff Avenue, Ames, IA 50010-3014.
- What is Bryan Feyen's phone number?
- The practice phone number listed in the NPPES registry for Bryan Feyen is (515) 239-4450.
- Does Bryan Feyen accept Medicare?
- Bryan Feyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bryan Feyen's NPI active?
- Yes — Bryan Feyen's NPI (1811042310) is active in the NPPES registry as of the last update on 2016-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.