Doctor profile · Federal record
Dr. Gregory Cowan, M.D.
Allergy & Immunology Physician (CMS: Allergy/Immunology) · Allergy & Immunology Physician · Pediatrics Physician · Pediatrics Physician · Peoria, AZ
- NPI 1164756904
- Accepts Medicare
- 18 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9145 W Thunderbird RD Ste 101
Peoria, AZ 853814820
(623) 815-7800
fax (623) 815-7900
Credentials & registration
- NPI registered
- September 2009 — 17 yrs on file
- Profile last updated
- October 26, 2021
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207K00000X — NUCC code
- State licenses (2)
- Arizona #48556 · Florida #ME110800
- Medicaid (2)
- FL #003990800 · AZ #935585
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164756904. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
105,907
Distinct HCPCS
10
Medicare allowed
$1,297,412
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1306 |
Injection, inclisiran, 1 mg | 98,264 | 249 | $12 | |
95165 |
Professional service for preparation and provision of 1 or more antigens | 3,031 | 53 | $14 | |
J0897 |
Injection, denosumab, 1 mg | 2,040 | 27 | $23 | |
95004 |
Test for allergy using allergenic extract | 1,172 | 21 | $4 | |
95117 |
Professional service for multiple injections of allergen | 613 | 54 | $11 | |
96372 |
Injection of drug or substance under skin or into muscle | 527 | 316 | $14 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 96 | 72 | $122 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 89 | 60 | $85 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 33 | 14 | $61 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 27 | 27 | $106 |
In context: peer comparison
Among 2 peers in Peoria Allergy & Immunology Physician, average services per provider: 4,953. This provider delivers 21× the peer median.Open Payments
Industry payments received
All-time total
$400
Transactions
27
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Takeda Pharmaceuticals U.S.A., INC. | 15 | $176.27 | |
| Csl Behring | 3 | $59.29 | |
| Genzyme Corporation | 2 | $38.45 | |
| Adma BioManufacturing LLC | 2 | $28.86 | |
| Novartis Pharmaceuticals Corporation | 1 | $27.77 | |
| Hikma Pharmaceuticals USA | 1 | $21.58 | |
| Genentech USA, INC. | 1 | $17.10 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $15.37 | |
| Pfizer INC. | 1 | $15.27 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
387
Patients
96
Total drug cost
$384,851
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levocetirizine Dihydrochloride | Generic | 41 | 12 | $809 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 36 | 19 | $673 |
| Montelukast Sodium | Generic | 36 | 0 | $451 |
| Hizentra (Immun Glob G(Igg)/Pro/Iga 0-50) | Brand | 35 | 0 | $268,979 |
| Ipratropium Bromide | Generic | 28 | 15 | $1,828 |
| Advair Diskus (Fluticasone Propion/Salmeterol) | Brand | 27 | 0 | $17,942 |
| Prednisone | Generic | 27 | 16 | $108 |
| Gabapentin | Generic | 25 | 0 | $315 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 23 | 0 | $17,067 |
| Cromolyn Sodium | Generic | 22 | 0 | $2,121 |
Frequently asked questions
What is Dr. Gregory Cowan's medical specialty?
Dr. Gregory Cowan practices Allergy & Immunology Physician in Peoria, AZ.
Where does Dr. Gregory Cowan practice?
Dr. Gregory Cowan practices at 9145 W Thunderbird RD Ste 101, Peoria, AZ 853814820. Office phone: 6238157800.
What is Dr. Gregory Cowan's NPI?
Dr. Gregory Cowan's National Provider Identifier (NPI) is 1164756904, issued by NPPES.
Does Dr. Gregory Cowan accept Medicare assignment?
Yes. Dr. Gregory Cowan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Cowan commonly perform?
Top Medicare-reported procedures in 2023: Injection, inclisiran, 1 mg (HCPCS J1306); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Injection, denosumab, 1 mg (HCPCS J0897). Source: CMS Medicare Physician & Other Practitioners file.