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Edit this profileWhere to find Wei An, M.D.
- West Hartford location main office
836 Farmington Ave Ste 207, West Hartford, CT 06119 - Milwaukee location
9200 W Wisconsin Ave, Milwaukee, WI 53226 - New Britain location
100 Grand St, New Britain, CT 06052 - Hartford location
282 Washington St, Hartford, CT 06106
About Dr. An
Based in West Hartford, CT, Wei An, M.D. is listed in the NPI registry under allergy/immunology. Wei graduated from University of Wisconsin School of Medicine in 2012. Wei is also listed as specializing in internal medicine and allergy & immunology. Medicare claims data shows Wei provided 3,560 services to 388 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 single injection of allergen. NPI 1942576947 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (860) 232-9911
- Email not available
Practice Locations
836 FARMINGTON AVE STE 207
West Hartford, CT 06119
9200 W Wisconsin Ave
Milwaukee, WI 53226
100 Grand St
New Britain, CT 06052
282 Washington St
Hartford, CT 06106
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
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
- 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
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
3,560 services · 388 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test for allergy using allergenic extract | Treatment | 95004 |
2,563 | More often than most peers in Allergy/Immunology |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
318 | Less often than most peers in Allergy/Immunology |
| Professional service for single injection of allergen | Treatment | 95115 |
131 | As often as other peers in Allergy/Immunology |
| Test for allergy using combination of methods with drug or biological | Treatment | 95018 |
129 | As often as other peers in Allergy/Immunology |
| Professional service for multiple injections of allergen | Treatment | 95117 |
107 | Less often than most peers in Allergy/Immunology |
| Test to measure the level of nitric oxide gas | Treatment | 95012 |
44 | As often as other peers in Allergy/Immunology |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
37 | As often as other 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 |
88 | As often as other 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 |
69 | As often as other 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 |
49 | 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.
Other allergy/immunology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
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 allergy/immunology specialists in West Hartford 3
Same specialty, same city.
More connections — 22 related providers in 3 groups
Trained at University of Wisconsin School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at University of Wisconsin School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Test for allergy using allergenic extract 6
Providers in CT who bill this service to Medicare most often.
Common questions
What is Wei An's specialty?
Wei An is an allergy/immunology in West Hartford, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Wei An?
Wei An is listed at 836 Farmington Ave Ste 207, West Hartford, CT 06119. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Wei An?
The number on file is (860) 232-9911. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Wei An?
Wei An's National Provider Identifier is 1942576947. 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
What is Wei An's education?
Wei An attended University of Wisconsin School of Medicine, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Wei An have?
Wei An has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What is Wei An known for?
According to Medicare billing data, Wei An 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 Wei An's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Wei An. If this is you, claiming it is free.
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