Ralph Nelson, D.O.
NPI 1841209178 · Internal Medicine Physician · Algoma, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ralph Nelson, D.O. is a Internal Medicine Physician provider in Algoma, WI (NPI 1841209178).
Provider details
- NPI number
- 1841209178
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 44848 (WI)
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
278 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 | 214 | $73 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 39 | $107 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 25 | $121 |
Typical Medicare-allowed amounts for these services range $73–$121 (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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 61 | 30 |
| Furosemide | 44 | 33 |
| Cefdinir | 38 | 38 |
| Famotidine | 34 | — |
| Doxycycline Hyclate | 23 | 23 |
| Apixabanbrand: Eliquis | 22 | 15 |
| Amlodipine Besylate | 18 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ralph Nelson's NPI number?
- Ralph Nelson's National Provider Identifier (NPI) is 1841209178, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Nelson's specialty?
- Ralph Nelson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ralph Nelson located?
- Ralph Nelson's practice location on file with NPPES is 815 Jefferson St, Algoma, WI 54201-1733.
- What is Ralph Nelson's phone number?
- The practice phone number listed in the NPPES registry for Ralph Nelson is (920) 487-3496.
- Does Ralph Nelson accept Medicare?
- Ralph Nelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ralph Nelson's NPI active?
- Yes — Ralph Nelson's NPI (1841209178) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.