Doctor profile · Federal record
Dr. Mark Zacharjasz, M.D.
Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Oskaloosa, IA
- NPI 1346621059
- Accepts Medicare
- MIPS 91.1 / 100 · 2023
- 11 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1229 C Ave E
Oskaloosa, IA 52577
(641) 672-3100 - Additional location
-
615 S New Ballas RD, Family Medicine
Saint Louis, MO 631418221
(314) 251-8888
fax (314) 251-8889
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- December 28, 2018
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (2)
- Iowa #45154 · Missouri #2015019270
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346621059. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
22
Distinct HCPCS
1
Medicare allowed
$610
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99422 |
Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes | 22 | 18 | $28 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 40. This provider delivers 0.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
5,513
Patients
1,366
Total drug cost
$94,203
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 689 | 185 | $10,761 |
| Atorvastatin Calcium | Generic | 682 | 173 | $10,173 |
| Levothyroxine Sodium | Generic | 593 | 144 | $8,680 |
| Amlodipine Besylate | Generic | 477 | 120 | $3,966 |
| Lisinopril | Generic | 438 | 111 | $3,600 |
| Furosemide | Generic | 401 | 91 | $1,959 |
| Metoprolol Succinate | Generic | 351 | 95 | $5,760 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 286 | 65 | $10,747 |
| Losartan Potassium | Generic | 283 | 73 | $3,911 |
| Potassium Chloride | Generic | 272 | 54 | $7,286 |
Frequently asked questions
What is Dr. Mark Zacharjasz's medical specialty?
Dr. Mark Zacharjasz practices Family Medicine Physician in Oskaloosa, IA.
Where does Dr. Mark Zacharjasz practice?
Dr. Mark Zacharjasz practices at 1229 C Ave E, Oskaloosa, IA 52577. Office phone: 6416723100.
What is Dr. Mark Zacharjasz's NPI?
Dr. Mark Zacharjasz's National Provider Identifier (NPI) is 1346621059, issued by NPPES.
Does Dr. Mark Zacharjasz accept Medicare assignment?
Yes. Dr. Mark Zacharjasz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Zacharjasz commonly perform?
Top Medicare-reported procedures in 2023: Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes (HCPCS 99422). Source: CMS Medicare Physician & Other Practitioners file.