Mark Sly, PHARMD

Primary specialty

Geriatric PharmacistTaxonomy code 1835G0303X

License

051295174 Issued in IL

Practice address

1 Jefferson Barracks Dr
Saint Louis, MO 63125-4181

Phone

(309) 663-8852

NPI assigned

Mar 8, 2012

Last updated

Apr 29, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Pharmacy

State licenses

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1331164800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777420800000",
    "number": "1679848618",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 JEFFERSON BARRACKS DR",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631254181"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 JEFFERSON BARRACKS DR",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631254181",
            "telephone_number": "309-663-8852"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "915 N Grand Blvd",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631061621",
            "country_code": "US",
            "telephone_number": "314-652-4100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SLY",
        "first_name": "MARK",
        "credential": "PHARMD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2012-03-08",
        "last_updated": "2026-04-29",
        "certification_date": "2026-04-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1835G0303X",
            "taxonomy_group": "",
            "desc": "Pharmacist, Geriatric",
            "state": "IL",
            "license": "051295174",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Will Slotky, MSW
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• Hannah Marie Slusher, OTR/L
• Sheri Slusser
• Julie Smailys, BCBA, LBA
• Sabina Smajis, AGPCNP-BC
• Harvey Wayne Small, D.M.D.
• Jeffrey Barrett Small, MD
• Natalie Kyle Small, FNP-C

• Geriatric Pharmacist in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Geriatric Pharmacist in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.