Doctor profile · Federal record
Dr. Mark Zellmer, PA-C
Medical Physician Assistant (CMS: Physician Assistant) · Physician Assistant · Whitehall, WI
- NPI 1023013364
- Accepts Medicare
- 43 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
18606 Ervin St
Whitehall, WI 547738613
(715) 538-4355 - Mailing address
-
1836 South Ave
La Crosse, WI 546015429
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- February 8, 2023
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 363AM0700X — NUCC code
- State licenses (2)
- Wisconsin #507 · Minnesota #8874
- Medicaid (2)
- MN #874650800 · WI #42918400
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023013364. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
260
Distinct HCPCS
8
Medicare allowed
$24,833
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 65 | 35 | $64 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 47 | 25 | $87 | |
99239 |
Hospital discharge day management, more than 30 minutes | 30 | 28 | $93 | |
99316 |
Nursing facility discharge management, more than 30 minutes | 27 | 24 | $107 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 24 | 21 | $149 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 24 | 16 | $125 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 22 | 17 | $97 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 21 | 21 | $105 |
In context: peer comparison
Among 2 peers in Whitehall Medical Physician Assistant, average services per provider: 33. This provider delivers 7.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
202
Patients
0
Total drug cost
$22,868
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 36 | 0 | $20,794 |
| Metoprolol Succinate | Generic | 26 | 0 | $397 |
| Lisinopril | Generic | 20 | 0 | $78 |
| Metoprolol Tartrate | Generic | 18 | 0 | $128 |
| Tamsulosin Hcl | Generic | 18 | 0 | $405 |
| Furosemide | Generic | 17 | 0 | $80 |
| Omeprazole | Generic | 15 | 0 | $172 |
| Atorvastatin Calcium | Generic | 14 | 0 | $152 |
| Amlodipine Besylate | Generic | 13 | 0 | $83 |
| Cefadroxil | Generic | 13 | 0 | $497 |
Frequently asked questions
What is Dr. Mark Zellmer's medical specialty?
Dr. Mark Zellmer practices Medical Physician Assistant in Whitehall, WI.
Where does Dr. Mark Zellmer practice?
Dr. Mark Zellmer practices at 18606 Ervin St, Whitehall, WI 547738613. Office phone: 7155384355.
What is Dr. Mark Zellmer's NPI?
Dr. Mark Zellmer's National Provider Identifier (NPI) is 1023013364, issued by NPPES.
Does Dr. Mark Zellmer accept Medicare assignment?
Yes. Dr. Mark Zellmer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Zellmer commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.