Doctor profile · Federal record
Dr. John Herath, MD
Internal Medicine Physician (CMS: Internal Medicine) · Onalaska, WI
- NPI 1740286913
- Accepts Medicare
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3111 Gundersen Dr
Onalaska, WI 546508447
(608) 782-7300 - Mailing address
-
1836 South Ave
La Crosse, WI 546015429
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- June 2, 2015
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #42729
- Medicaid
- WI #34043800
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740286913. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
485
Distinct HCPCS
4
Medicare allowed
$46,750
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 236 | 196 | $93 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 155 | 155 | $125 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 82 | 78 | $62 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 12 | 12 | $30 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 78. This provider delivers 6.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
4,638
Patients
1,147
Total drug cost
$270,579
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 543 | 144 | $11,497 |
| Lisinopril | Generic | 511 | 135 | $4,233 |
| Omeprazole | Generic | 458 | 104 | $8,678 |
| Metoprolol Succinate | Generic | 401 | 97 | $7,976 |
| Simvastatin | Generic | 387 | 93 | $3,334 |
| Levothyroxine Sodium | Generic | 337 | 69 | $5,075 |
| Losartan Potassium | Generic | 300 | 77 | $4,131 |
| Amlodipine Besylate | Generic | 284 | 76 | $2,437 |
| Tamsulosin Hcl | Generic | 279 | 52 | $3,395 |
| Metformin Hcl | Generic | 218 | 45 | $3,839 |
Hospital affiliations
Frequently asked questions
What is Dr. John Herath's medical specialty?
Dr. John Herath practices Internal Medicine Physician in Onalaska, WI.
Where does Dr. John Herath practice?
Dr. John Herath practices at 3111 Gundersen Dr, Onalaska, WI 546508447. Office phone: 6087827300.
What is Dr. John Herath's NPI?
Dr. John Herath's National Provider Identifier (NPI) is 1740286913, issued by NPPES.
Does Dr. John Herath accept Medicare assignment?
Yes. Dr. John Herath accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Herath commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.