What is Mark Johnson's NPI number?

Mark Johnson's National Provider Identifier (NPI) is 1669357885, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Johnson's specialty?

Mark Johnson is listed in the NPPES registry with a primary specialty of Critical Care Pharmacist (Pharmacy Service Providers).

Where is Mark Johnson located?

Mark Johnson's practice location on file with NPPES is 9000 Franklin Square Dr, Baltimore, MD 21237-3901.

What is Mark Johnson's phone number?

The practice phone number listed in the NPPES registry for Mark Johnson is (443) 504-4225.

Is Mark Johnson's NPI active?

Yes — Mark Johnson's NPI (1669357885) is active in the NPPES registry as of the last update on 2025-08-07.

IndividualActive

Mark Johnson, PHARMACIST

NPI 1669357885 · Critical Care Pharmacist · Baltimore, MD

Mark Johnson, PHARMACIST is a Critical Care Pharmacist provider in Baltimore, MD (NPI 1669357885).

Provider details

NPI number: 1669357885
Entity type: Individual
Primary specialty: Critical Care PharmacistPharmacy Service Providers
Credential: PHARMACIST
Sex: Male
Sole proprietor: No
License: 11119 (MD)

Specialties & taxonomies

Critical Care PharmacistPrimary1835C0205XLicense 11119 (MD)
Pharmacy Service Providers

Profile Score

Established profile(54/100 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

9000 Franklin Square Dr

Baltimore, MD 21237-3901

Phone: (443) 504-4225

Street-level locationGet directions

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Mailing address