Doctor profile · Federal record
Dr. Kristen Zack, MD
Nephrology Physician (CMS: Nephrology) · Billings, MT
- NPI 1376105692
- Accepts Medicare
- 7 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1045 N 30Th St
Billings, MT 591010733
(406) 238-2500
Credentials & registration
- NPI registered
- July 2019 — 7 yrs on file
- Profile last updated
- August 28, 2025
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Montana #162224
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1376105692. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$352
Transactions
7
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Baxter Healthcare | 1 | $125.00 | |
| Ardelyx, Inc. | 1 | $115.88 | |
| GENZYME CORPORATION | 1 | $34.67 | |
| CALLIDITAS THERAPEUTICS US INC. | 1 | $26.50 | |
| Aurinia Pharma U.S., Inc. | 1 | $24.46 | |
| GlaxoSmithKline, LLC. | 1 | $15.66 | |
| Travere Therapeutics, Inc. | 1 | $9.45 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
17
Patients
0
Total drug cost
$12,530
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Jardiance (Empagliflozin) | Brand | 17 | 0 | $12,530 |
Frequently asked questions
What is Dr. Kristen Zack's medical specialty?
Dr. Kristen Zack practices Nephrology Physician in Billings, MT.
Where does Dr. Kristen Zack practice?
Dr. Kristen Zack practices at 1045 N 30Th St, Billings, MT 591010733. Office phone: 4062382500.
What is Dr. Kristen Zack's NPI?
Dr. Kristen Zack's National Provider Identifier (NPI) is 1376105692, issued by NPPES.
Does Dr. Kristen Zack accept Medicare assignment?
Yes. Dr. Kristen Zack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.