Physician Profile
Gregory M. Cowan, M.D.
Unclaimed ProfileAbout Dr. Cowan
Gregory M. Cowan, M.D. practices allergy & immunology in Peoria, AZ. Gregory is a 2008 graduate of University of South Florida College of Medicine. Gregory is also listed as specializing in pediatrics. According to Medicare claims data, Gregory cared for 2,736 Medicare patients across 479,780 services. The services billed most often include injection, inclisiran, 1 mg, injection, romosozumab-aqqg, 1 mg, and injection, denosumab, 1 mg. The provider's National Provider Identifier (NPI) is 1164756904.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (623) 815-7800
- Email not available
Practice Locations
9145 W THUNDERBIRD RD STE 101
Peoria, AZ 85381
Conditions Commonly Evaluated or Treated
Within Allergy and Immunology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Asthma
- Eczema
- Food allergies
- Hives
- Seasonal allergies
Allergies
- Angioedema
- Cockroach Allergy
- Histamine Intolerance
- Oral Allergy Syndrome
- Red Meat Allergy
Digestive
- Eosinophilic esophagitis
Drug allergies
- Sulfa Drug Allergy
Drug allergy
- Aspirin Allergy
- Drug Allergies
- Penicillin Allergy
- Vaccine Allergy
Emergency
- Severe Allergic Shock
Environmental
- Dust Mite Allergy
- Insect Sting Allergy
- Latex Allergy
- Mold Allergy
- Pet Allergies
Eye
- Eye Allergies
Food allergies
- Egg Allergy
- Milk Allergy
- Peanut Allergy
- Shellfish Allergy
- Soy Allergy
- Tree Nut Allergy
- Wheat Allergy
Immune conditions
- Low White Blood Cell Count
Immunology
- Common Variable Immunodeficiency
- Frequent Infections
- Hereditary Angioedema
- Mast Cell Activation Syndrome
- Weak Immune System
Lung conditions
- Allergic Asthma
- Wheezing
Respiratory
- Chronic cough
Sinus
- Chronic sinusitis
- Loss or reduction of smell
- Nasal polyps
- Nonallergic rhinitis
- Post-Nasal Drip
Sinus conditions
- Sinus Headaches
Skin
- Cold Allergy
- Contact dermatitis
- Nickel Allergy
- Sun Allergy
Skin conditions
- Chronic itching
- Poison Ivy Rash
- Skin Writing Rash
Procedures & services
Most searched procedures
- Allergy testing
- Immunotherapy
- Patch testing
Allergy treatments
- Allergy Drops
- Asthma Biologics
- Food Desensitization
- Peanut Allergy Pill Treatment
- Sublingual Dust Mite Treatment
- Under-The-Tongue Allergy Tablets
Diagnostic
- Asthma challenge test
- Drug Challenge Test
- Exercise Challenge Breathing Test
- Exhaled nitric oxide test
- Ice Cube Test for Cold Allergy
- Immune System Blood Test
- Nasal endoscopy
- Oral Food Challenge
- Peak Flow Test
- Penicillin Allergy Testing
- Spirometry
- Tryptase Blood Test
- Vaccine Challenge Test
- Vaccine Response Antibody Test
Infusion
- C1 Esterase Inhibitor Infusion
- IVIG Infusion
- Subcutaneous Immunoglobulin Infusion
Medication therapy
- Fasenra Injections
- Nucala Injections
- Tezspire Injections
Medications
- Dupixent Injections
- Targeted therapy
- Xolair Injections
Preventive
- Anaphylaxis Emergency Action Plan
- Epinephrine Autoinjector Training
Respiratory
- Inhaler technique instruction
- Nebulizer Breathing Treatment
Tests
- Allergy Blood Testing
- Allergy Skin Prick Test
- Blood Component Allergy Test
- Complement Blood Test
- Eosinophil Blood Count
- Intradermal Allergy Test
- Pulmonary function test
- Skin Test For Metal Allergy
- Total IgE Blood Test
Treatment
- Aspirin Desensitization
- Dietary Allergen Elimination Plan
- Drug Desensitization Protocol
- Sinus Rinse Training
Procedures Most Often Billed to Medicare
479,780 services · 2,736 patients · 15 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
4,110 | More often than most peers in Allergy & Immunology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
2,173 | More than most peers in Allergy & Immunology |
| Test for allergy using allergenic extract | Treatment | 95004 |
1,264 | As often as other peers in Allergy & Immunology |
| Professional service for multiple injections of allergen | Treatment | 95117 |
618 | More often than most peers in Allergy & Immunology |
| Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | Treatment | 96401 |
251 | More often than most peers in Allergy & Immunology |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
101 | As often as other peers in Allergy & Immunology |
| Injection, inclisiran, 1 mg | Drug given | J1306 |
420,300 | Too few peers to compare |
| Injection, romosozumab-aqqg, 1 mg | Drug given | J3111 |
16,800 | Too few peers to compare |
| Injection, denosumab, 1 mg | Drug given | J0897 |
14,100 | Too few peers to compare |
| Injection, omalizumab, 5 mg | Drug given | J2357 |
11,730 | More often than most peers in Allergy & Immunology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other allergists in Peoria 8
Same specialty, same city.
Trained at University of South Florida College of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 2008 at University of South Florida College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Professional service for preparation and provision of 1 or more antigens 7
Providers in AZ who bill this service to Medicare most often.
Common questions
What does Gregory M. Cowan specialize in?
Gregory M. Cowan is an allergist in Peoria, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Allergy & Immunology”.
NPI registry
Where is Gregory M. Cowan located?
Gregory M. Cowan is listed at 9145 W Thunderbird Rd Ste 101, Peoria, AZ 85381. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Gregory M. Cowan's phone number?
The number on file is (623) 815-7800. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Gregory M. Cowan's NPI number?
Gregory M. Cowan's National Provider Identifier is 1164756904. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Gregory M. Cowan train?
Gregory M. Cowan attended University of South Florida College of Medicine, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How long has Gregory M. Cowan been practicing?
Gregory M. Cowan has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What does Gregory M. Cowan do most often?
According to Medicare billing data, Gregory M. Cowan provides treatments such as professional service for preparation and provision of 1 or more antigens and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Gregory M. Cowan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Gregory M. Cowan. If this is you, claiming it is free.
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