Physician Profile
Brian W. Millhollon, MD
Unclaimed ProfileAbout Dr. Millhollon
Based in Phoenix, AZ, Brian W. Millhollon, MD is listed in the NPI registry under allergy & immunology. Brian graduated from Louisiana State University School of Medicine in New Orleans in 1982. Medicare claims data shows Brian provided 2,378 services to 197 patients. The services billed most often include test for allergy using allergenic extract, professional service for preparation and provision of 1 or more antigens, and professional service for multiple injections of allergen.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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
- (480) 705-8844
- Email not available
Practice Locations
16611 S 40TH STREET SUITE 170
Phoenix, AZ 85048
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
Allergies
- Angioedema
- Cockroach Allergy
- Histamine Intolerance
- Oral Allergy Syndrome
- Red Meat Allergy
Digestive
Drug allergies
- Sulfa Drug Allergy
Drug allergy
- Aspirin Allergy
- Drug Allergies
- Penicillin Allergy
- Vaccine Allergy
Emergency
Environmental
- Dust Mite Allergy
- Insect Sting Allergy
- Latex Allergy
- Mold Allergy
- Pet Allergies
Eye
Food allergies
- Egg Allergy
- Milk Allergy
- Peanut Allergy
- Shellfish Allergy
- Soy Allergy
- Tree Nut Allergy
- Wheat Allergy
Immune conditions
Immunology
- Common Variable Immunodeficiency
- Frequent Infections
- Hereditary Angioedema
- Mast Cell Activation Syndrome
- Weak Immune System
Lung conditions
- Allergic Asthma
- Wheezing
Respiratory
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 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
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
2,378 services · 197 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test for allergy using allergenic extract | Treatment | 95004 |
858 | Less often than most peers in Allergy & Immunology |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
690 | As often as other peers in Allergy & Immunology |
| Professional service for multiple injections of allergen | Treatment | 95117 |
435 | As often as other peers in Allergy & Immunology |
| Professional service for single injection of allergen | Treatment | 95115 |
245 | More often than most peers in Allergy & Immunology |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
14 | Less often than most peers in Allergy & Immunology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
106 | More often than most peers in Allergy & Immunology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
17 | Less often than most peers in Allergy & Immunology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
13 | Less 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 Phoenix 8
Same specialty, same city.
Trained at Louisiana State University School of Medicine in New Orleans 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1982 at Louisiana State University School of Medicine in New Orleans 8
Providers who graduated from the same medical school in the same year.
Also performs Test for allergy using allergenic extract 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What does Dr. Millhollon specialize in?
Dr. Millhollon is an allergist in Phoenix, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Allergy & Immunology”.
NPI registry
Where is Dr. Millhollon located?
Dr. Millhollon is listed at 16611 S 40Th Street Suite 170, Phoenix, AZ 85048. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Millhollon's phone number?
The number on file is (480) 705-8844. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Millhollon?
Dr. Millhollon's National Provider Identifier is 1841212693. 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 Dr. Millhollon go to medical school?
Dr. Millhollon attended Louisiana State University School of Medicine in New Orleans, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Millhollon have?
Dr. Millhollon has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Millhollon do most often?
According to Medicare billing data, Dr. Millhollon provides treatments such as test for allergy using allergenic extract and professional service for preparation and provision of 1 or more antigens, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Millhollon's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Millhollon. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.