Doctor profile · Federal record
Dr. Barry Zeffren, MD
Allergy & Immunology Physician (CMS: Allergy/Immunology) · Allergy & Immunology Physician · Glen Carbon, IL
- NPI 1205908639
- Accepts Medicare
- 47 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4 Country Club Executive Park
Glen Carbon, IL 62034
(618) 288-6673
fax (618) 288-1938
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- April 10, 2015
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207K00000X — NUCC code
- State licenses (2)
- Illinois #036068207 · Missouri #R8A32
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1205908639. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,534
Distinct HCPCS
6
Medicare allowed
$43,655
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 2,254 | 52 | $4 | |
95044 |
Test for allergy using skin patch | 997 | 13 | $5 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 187 | 110 | $88 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 58 | 58 | $216 | |
94010 |
Test to measure expiratory airflow and volume | 27 | 21 | $26 | |
94060 |
Test to measure expiratory airflow and volume changes before and after medication administration | 11 | 11 | $37 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 589. This provider delivers 6.0× the peer median.Open Payments
Industry payments received
All-time total
$611
Transactions
34
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 10 | $270.04 | |
| GlaxoSmithKline, LLC. | 12 | $148.67 | |
| Novartis Pharmaceuticals Corporation | 3 | $43.90 | |
| GENZYME CORPORATION | 2 | $40.92 | |
| Pharming Healthcare, Inc. | 2 | $31.94 | |
| BioCryst US Sales Co., LLC | 2 | $29.14 | |
| Genentech USA, Inc. | 1 | $18.61 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $13.95 | |
| Optinose US, Inc. | 1 | $13.44 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
886
Patients
195
Total drug cost
$632,483
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 128 | 38 | $4,718 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 108 | 25 | $52,003 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 107 | 20 | $55,160 |
| Fluticasone Propionate | Generic | 105 | 33 | $2,166 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 104 | 19 | $86,505 |
| Xolair (Omalizumab) | Brand | 54 | 0 | $191,859 |
| Arnuity Ellipta (Fluticasone Furoate) | Brand | 44 | 0 | $13,584 |
| Ipratropium Bromide | Generic | 39 | 14 | $1,583 |
| Wixela Inhub (Fluticasone Propion/Salmeterol) | Brand | 39 | 11 | $14,953 |
| Azelastine Hcl | Generic | 31 | 13 | $1,027 |
Frequently asked questions
What is Dr. Barry Zeffren's medical specialty?
Dr. Barry Zeffren practices Allergy & Immunology Physician in Glen Carbon, IL.
Where does Dr. Barry Zeffren practice?
Dr. Barry Zeffren practices at 4 Country Club Executive Park, Glen Carbon, IL 62034. Office phone: 6182886673.
What is Dr. Barry Zeffren's NPI?
Dr. Barry Zeffren's National Provider Identifier (NPI) is 1205908639, issued by NPPES.
Does Dr. Barry Zeffren accept Medicare assignment?
Yes. Dr. Barry Zeffren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Barry Zeffren commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Test for allergy using skin patch (HCPCS 95044); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.