NPI age
12 years
Enumerated 2014-05-07
● Active
Type 1 · Individual
DR. Alissa Welsh, MD
Welsh is 1 of 1 allergy & immunology providers in Webster and 1 of 134 in Texas.
Primary specialty
Allergy & Immunology
Plus 3 subspecialties
Licensed in
LA, TX, MI
3 states
Status
Active
No deactivations on record
Last NPPES update
2020-01-24
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 134 active allergy & immunology providers in Texas.
NPI age
12 years
↓ 7 yr below median (19 yr)
State licenses
3 states
Top 91% — 9% of peers are multi-state
Subspecialties
3
In the 31% of peers with subspecialties
NPI lifetime · 2014 → 2026
2014-05Enumerated in NPPES
2014
2026
Where they practice
Practice location
561 W Medical Center Blvd Ste G
Webster, TX 775984240
Mailing address
561 W Medical Center Blvd Ste G
Webster, TX 775984240
Additional practice locations
1 secondary location on file with NPPES.
Location 2
1000 Oakland Dr
Kalamazoo, MI 490081282
Specialties
-
Allergy & Immunology PrimaryA physician who specializes in the diagnosis, treatment, and management of allergies.
-
Allergy & ImmunologyAn allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and...
-
PediatricsA pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment...
-
Student in an Organized Health Care Education/Training ProgramAn individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Practice context
Solo or small practice. No other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 134 Allergy & Immunology providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.