Peter Eichenseer, M.D.
NPI 1821289141 · Gastroenterology Physician · Menomonee Falls, WI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Eichenseer, M.D. is a Gastroenterology Physician provider in Menomonee Falls, WI (NPI 1821289141).
Provider details
- NPI number
- 1821289141
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125.052595 (IL)
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
18 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
681 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 | 157 | $54 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 89 | $426 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 77 | $180 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 77 | $123 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure, Each Additional 15 Minutes99153 | 71 | $11 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 192 | 185 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 129 | 129 |
| Pantoprazole Sodium | 107 | 42 |
| Omeprazole | 100 | 36 |
| Cholestyramine (with Sugar)brand: Cholestyramine | 37 | 13 |
| Lubiprostone | 31 | — |
| Linaclotidebrand: Linzess |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-05
- Last updated
- 2013-08-09
Frequently asked questions
- What is Peter Eichenseer's NPI number?
- Peter Eichenseer's National Provider Identifier (NPI) is 1821289141, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Eichenseer's specialty?
- Peter Eichenseer is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Eichenseer located?
- Peter Eichenseer's practice location on file with NPPES is W129n7055 Northfield Dr, Menomonee Falls, WI 53051-0538.
- What is Peter Eichenseer's phone number?
- The practice phone number listed in the NPPES registry for Peter Eichenseer is (262) 253-5400.
- Does Peter Eichenseer accept Medicare?
- Peter Eichenseer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Eichenseer's NPI active?
- Yes — Peter Eichenseer's NPI (1821289141) is active in the NPPES registry as of the last update on 2013-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.