Doctor profile · Federal record

Dr. Ralph Nelson, D.O.

Internal Medicine Physician (CMS: Internal Medicine) · Algoma, WI

  • NPI 1841209178
  • Accepts Medicare
  • 25 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
815 Jefferson St
Algoma, WI 542011733
(920) 487-3496
Mailing address
323 S 18Th Ave
Sturgeon Bay, WI 542351401

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Wisconsin #44848
Medicaid
WI #43513500

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841209178. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
250
Distinct HCPCS
3
Medicare allowed
$21,109
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 181 59 $74
99239 Hospital discharge day management, more than 30 minutes 47 46 $106
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 22 22 $124

In context: peer comparison

Among 1 peers in Algoma Internal Medicine Physician, average services per provider: 83. This provider delivers 3.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
372
Patients
149
Total drug cost
$10,267
Drug Type Claims Patients Total cost
Metoprolol Succinate Generic 75 24 $1,002
Cefdinir Generic 48 47 $823
Diltiazem 24Hr ER (Cd) (Diltiazem Hcl) Brand 32 0 $1,767
Famotidine Generic 28 11 $208
Furosemide Generic 26 22 $128
Finasteride Generic 21 0 $100
Doxycycline Hyclate Generic 18 18 $176
Xarelto (Rivaroxaban) Brand 18 0 $5,128
Lisinopril Generic 17 0 $51
Potassium Chloride Generic 16 14 $148

Frequently asked questions

Auto-generated from federal data
What is Dr. Ralph Nelson's medical specialty?
Dr. Ralph Nelson practices Internal Medicine Physician in Algoma, WI.
Where does Dr. Ralph Nelson practice?
Dr. Ralph Nelson practices at 815 Jefferson St, Algoma, WI 542011733. Office phone: 9204873496.
What is Dr. Ralph Nelson's NPI?
Dr. Ralph Nelson's National Provider Identifier (NPI) is 1841209178, issued by NPPES.
Does Dr. Ralph Nelson accept Medicare assignment?
Yes. Dr. Ralph Nelson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ralph Nelson commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.