IndividualActive
William Welch, R.PH.
NPI 1891787107 · Pharmacist · Denver, CO
William Welch, R.PH. is a Pharmacist provider in Denver, CO (NPI 1891787107).
Provider details
- NPI number
- 1891787107
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- R.PH.
- Sex
- Male
- License
- 13354 (CO)
Specialties & taxonomies
Pharmacy Service Providers
Pharmacy Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
4353 E Colfax Ave
Denver, CO 80220-1115
Phone: (303) 504-1922
Fax: (303) 320-6388
Street-level locationGet directions
Mailing address
6319 S Jasmine Way
Centennial, CO 80111-4312
Registry dates
- Enumerated
- 2005-08-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Welch's NPI number?
- William Welch's National Provider Identifier (NPI) is 1891787107, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Welch's specialty?
- William Welch is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is William Welch located?
- William Welch's practice location on file with NPPES is 4353 E Colfax Ave, Denver, CO 80220-1115.
- What is William Welch's phone number?
- The practice phone number listed in the NPPES registry for William Welch is (303) 504-1922.
- Is William Welch's NPI active?
- Yes — William Welch's NPI (1891787107) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.