Eric Guenther, D.O.
NPI 1164716742 · Hospitalist Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Guenther, D.O. is a Hospitalist Physician provider in Saint Louis, MO (NPI 1164716742).
Provider details
- NPI number
- 1164716742
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 036.135440 (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
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
838 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 609 | $75 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 174 | $109 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 29 | $165 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 26 | $113 |
Typical Medicare-allowed amounts for these services range $75–$165 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 51 | 19 |
| Cefdinir | 35 | 35 |
| Prednisone | 30 | 28 |
| Furosemide | 28 | 16 |
| Apixabanbrand: Eliquis | 25 | 14 |
| Metoprolol Succinate | 23 | 12 |
| Carvedilol | 22 | — |
Practice location
Mailing address
Additional practice locations (1)
- 1 Memorial DrAlton, IL 62002-6722Phone: (618) 463-7240Fax: (618) 463-7216
Registry dates
- Enumerated
- 2011-06-01
- Last updated
- 2025-09-17
- Certified
- 2025-09-17
Frequently asked questions
- What is Eric Guenther's NPI number?
- Eric Guenther's National Provider Identifier (NPI) is 1164716742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Guenther's specialty?
- Eric Guenther is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Guenther located?
- Eric Guenther's practice location on file with NPPES is 3015 N Ballas Rd, Saint Louis, MO 63131-2329.
- What is Eric Guenther's phone number?
- The practice phone number listed in the NPPES registry for Eric Guenther is (314) 996-7080.
- Does Eric Guenther accept Medicare?
- Eric Guenther is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Guenther's NPI active?
- Yes — Eric Guenther's NPI (1164716742) is active in the NPPES registry as of the last update on 2025-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.