IndividualActive
Jonathan Mcmahan, PHARMD
NPI 1821191727 · Pharmacotherapy Pharmacist · Saint Louis, MO
Jonathan Mcmahan, PHARMD is a Pharmacotherapy Pharmacist provider in Saint Louis, MO (NPI 1821191727).
Provider details
- NPI number
- 1821191727
- Entity type
- Individual
- Primary specialty
- Pharmacotherapy PharmacistPharmacy Service Providers
- Credential
- PHARMD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 26022022A (IN)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(95/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
915 N Grand Blvd
Saint Louis, MO 63106-1621
Phone: (314) 652-4100
Street-level locationGet directions
Mailing address
915 N Grand Blvd
Saint Louis, MO 63106-1621
Additional practice locations (1)
- 1 Jefferson Barracks DrSaint Louis, MO 63125-4181Phone: (314) 652-4100
Registry dates
- Enumerated
- 2006-09-06
- Last updated
- 2026-03-20
- Certified
- 2026-03-20
Frequently asked questions
- What is Jonathan Mcmahan's NPI number?
- Jonathan Mcmahan's National Provider Identifier (NPI) is 1821191727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Mcmahan's specialty?
- Jonathan Mcmahan is listed in the NPPES registry with a primary specialty of Pharmacotherapy Pharmacist (Pharmacy Service Providers).
- Where is Jonathan Mcmahan located?
- Jonathan Mcmahan's practice location on file with NPPES is 915 N Grand Blvd, Saint Louis, MO 63106-1621.
- What is Jonathan Mcmahan's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Mcmahan is (314) 652-4100.
- Is Jonathan Mcmahan's NPI active?
- Yes — Jonathan Mcmahan's NPI (1821191727) is active in the NPPES registry as of the last update on 2026-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.