IndividualActive
Mark Sly, PHARMD
NPI 1679848618 · Geriatric Pharmacist · Saint Louis, MO
Mark Sly, PHARMD is a Geriatric Pharmacist provider in Saint Louis, MO (NPI 1679848618).
Provider details
- NPI number
- 1679848618
- Entity type
- Individual
- Primary specialty
- Geriatric PharmacistPharmacy Service Providers
- Credential
- PHARMD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 051295174 (IL)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
1 Jefferson Barracks Dr
Saint Louis, MO 63125-4181
Phone: (309) 663-8852
Street-level locationGet directions
Mailing address
1 Jefferson Barracks Dr
Saint Louis, MO 63125-4181
Additional practice locations (1)
- 915 N Grand BlvdSaint Louis, MO 63106-1621Phone: (314) 652-4100
Registry dates
- Enumerated
- 2012-03-08
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is Mark Sly's NPI number?
- Mark Sly's National Provider Identifier (NPI) is 1679848618, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Sly's specialty?
- Mark Sly is listed in the NPPES registry with a primary specialty of Geriatric Pharmacist (Pharmacy Service Providers).
- Where is Mark Sly located?
- Mark Sly's practice location on file with NPPES is 1 Jefferson Barracks Dr, Saint Louis, MO 63125-4181.
- What is Mark Sly's phone number?
- The practice phone number listed in the NPPES registry for Mark Sly is (309) 663-8852.
- Is Mark Sly's NPI active?
- Yes — Mark Sly's NPI (1679848618) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.