IndividualActive
Diana Williamson, RPH
NPI 1033381785 · Pharmacist · Melissa, TX
Diana Williamson, RPH is a Pharmacist provider in Melissa, TX (NPI 1033381785).
Provider details
- NPI number
- 1033381785
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- RPH
- Sex
- Female
- Sole proprietor
- No
- License
- 24626 (TX)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES 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
3213 Greenway Ln
Melissa, TX 75454-3310
Phone: (972) 616-3447
Street-level locationGet directions
Mailing address
Po Box 772
Winnsboro, TX 75494-0772
Registry dates
- Enumerated
- 2008-04-01
- Last updated
- 2018-01-24
Frequently asked questions
- What is Diana Williamson's NPI number?
- Diana Williamson's National Provider Identifier (NPI) is 1033381785, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Williamson's specialty?
- Diana Williamson is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Diana Williamson located?
- Diana Williamson's practice location on file with NPPES is 3213 Greenway Ln, Melissa, TX 75454-3310.
- What is Diana Williamson's phone number?
- The practice phone number listed in the NPPES registry for Diana Williamson is (972) 616-3447.
- Is Diana Williamson's NPI active?
- Yes — Diana Williamson's NPI (1033381785) is active in the NPPES registry as of the last update on 2018-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.