IndividualActive
Mary Welch
NPI 1821938788 · Pharmacist · Fairview Heights, IL
Mary Welch is a Pharmacist provider in Fairview Heights, IL (NPI 1821938788).
Provider details
- NPI number
- 1821938788
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 1252994 (IL)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Established profile(53/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
6505 N Illinois St
Fairview Heights, IL 62208-2001
Phone: (618) 394-8744
Fax: (618) 394-1026
Street-level locationGet directions
Mailing address
622 S Missouri Ave
Belleville, IL 62220-3671
Registry dates
- Enumerated
- 2026-03-31
- Last updated
- 2026-03-31
- Certified
- 2026-03-31
Frequently asked questions
- What is Mary Welch's NPI number?
- Mary Welch's National Provider Identifier (NPI) is 1821938788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Welch's specialty?
- Mary Welch is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Mary Welch located?
- Mary Welch's practice location on file with NPPES is 6505 N Illinois St, Fairview Heights, IL 62208-2001.
- What is Mary Welch's phone number?
- The practice phone number listed in the NPPES registry for Mary Welch is (618) 394-8744.
- Is Mary Welch's NPI active?
- Yes — Mary Welch's NPI (1821938788) is active in the NPPES registry as of the last update on 2026-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.