Doctor profile · Federal record
Dr. Zachary Berg, M.D.
Pulmonary Disease Physician (CMS: Pulmonary Disease) · Student in an Organized Health Care Education/Training Program · O Fallon, IL
- NPI 1255741278
- Accepts Medicare
- MIPS 92.6 / 100 · 2023
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3 Saint Elizabeth Blvd Ste 5000
O Fallon, IL 622691282
(618) 641-5803
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- July 1, 2020
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State license (1)
- Illinois #036150902
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255741278. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,462
Distinct HCPCS
10
Medicare allowed
$132,933
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 469 | 325 | $127 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 196 | 70 | $122 | |
94060 |
Test to measure expiratory airflow and volume changes before and after medication administration | 139 | 137 | $10 | |
94726 |
Test to determine lung volumes using sensors | 138 | 136 | $12 | |
94729 |
Test to examine how well the lungs exchange gases | 136 | 134 | $9 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 91 | 85 | $90 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 82 | 51 | $81 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 75 | 75 | $168 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 60 | 60 | $177 | |
94618 |
Test for exercise-induced lung stress | 37 | 37 | $22 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 111. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$10,312
Transactions
48
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| INTUITIVE SURGICAL, INC. | 25 | $9,819.10 | |
| GlaxoSmithKline, LLC. | 16 | $281.14 | |
| AstraZeneca Pharmaceuticals LP | 3 | $150.56 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 2 | $48.12 | |
| Electromed, Inc. | 2 | $13.53 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,854
Patients
570
Total drug cost
$1,071,598
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 507 | 136 | $574,277 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 294 | 111 | $11,041 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 166 | 38 | $168,046 |
| Montelukast Sodium | Generic | 154 | 43 | $2,248 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 141 | 41 | $118,425 |
| Fluticasone Propionate | Generic | 75 | 24 | $1,316 |
| Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) | Brand | 73 | 21 | $53,709 |
| Prednisone | Generic | 69 | 49 | $122 |
| Azithromycin | Generic | 68 | 32 | $849 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 66 | 20 | $42,261 |
Hospital affiliations
Frequently asked questions
What is Dr. Zachary Berg's medical specialty?
Dr. Zachary Berg practices Pulmonary Disease Physician in O Fallon, IL.
Where does Dr. Zachary Berg practice?
Dr. Zachary Berg practices at 3 Saint Elizabeth Blvd Ste 5000, O Fallon, IL 622691282. Office phone: 6186415803.
What is Dr. Zachary Berg's NPI?
Dr. Zachary Berg's National Provider Identifier (NPI) is 1255741278, issued by NPPES.
Does Dr. Zachary Berg accept Medicare assignment?
Yes. Dr. Zachary Berg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Zachary Berg commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Test to measure expiratory airflow and volume changes before and after medication administration (HCPCS 94060). Source: CMS Medicare Physician & Other Practitioners file.