Doctor profile · Federal record
Dr. William Zaks, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Internal Medicine) · Grand Forks, ND
- NPI 1437249307
- Accepts Medicare
- 39 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1380 S Columbia RD
Grand Forks, ND 582014059
(701) 795-2000 - Mailing address
-
2401 Demers Ave
Grand Forks, ND 58201
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- October 1, 2020
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- North Dakota #7435
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1437249307. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
990
Distinct HCPCS
9
Medicare allowed
$73,772
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 517 | 263 | $95 | |
G0447 |
Face-to-face behavioral counseling for obesity, 15 minutes | 237 | 41 | $22 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 100 | 71 | $34 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 50 | 50 | $130 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 27 | 27 | $140 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 21 | 19 | $64 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 15 | 15 | $176 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 12 | 12 | $80 | |
10021 |
Fine needle aspiration biopsy, first growth | 11 | 11 | $53 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 91. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$665
Transactions
14
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk Inc | 3 | $176.23 | |
| AstraZeneca Pharmaceuticals LP | 2 | $166.50 | |
| Abbott Laboratories | 2 | $93.97 | |
| Merck Sharp & Dohme LLC | 1 | $80.45 | |
| SANOFI-AVENTIS U.S. LLC | 1 | $68.33 | |
| BETA BIONICS, INC. | 2 | $24.50 | |
| Novartis Pharmaceuticals Corporation | 1 | $21.37 | |
| Tandem Diabetes Care, Inc. | 1 | $19.54 | |
| Medtronic, Inc. | 1 | $13.65 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,962
Patients
692
Total drug cost
$1,518,908
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metformin Hcl | Generic | 415 | 97 | $5,586 |
| Novolog Flexpen (Insulin Aspart) | Brand | 322 | 79 | $424,610 |
| Atorvastatin Calcium | Generic | 295 | 78 | $4,072 |
| Levothyroxine Sodium | Generic | 292 | 76 | $5,360 |
| Ozempic (Semaglutide) | Brand | 255 | 46 | $294,321 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 207 | 53 | $186,758 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 161 | 30 | $156,534 |
| Jardiance (Empagliflozin) | Brand | 147 | 23 | $139,569 |
| Simvastatin | Generic | 143 | 32 | $1,632 |
| Basaglar Kwikpen U-100 (Insulin Glargine,hum.Rec.Anlog) | Brand | 131 | 22 | $64,774 |
Hospital affiliations
Frequently asked questions
What is Dr. William Zaks's medical specialty?
Dr. William Zaks practices Endocrinology, Diabetes & Metabolism Physician in Grand Forks, ND.
Where does Dr. William Zaks practice?
Dr. William Zaks practices at 1380 S Columbia RD, Grand Forks, ND 582014059. Office phone: 7017952000.
What is Dr. William Zaks's NPI?
Dr. William Zaks's National Provider Identifier (NPI) is 1437249307, issued by NPPES.
Does Dr. William Zaks accept Medicare assignment?
Yes. Dr. William Zaks accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Zaks commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Face-to-face behavioral counseling for obesity (HCPCS G0447); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.