Individual provider Active NPI

Dennis T Villareal, MD

  • Geriatric Medicine (Internal Medicine) Physician
  • Saint Louis, MO
National Provider Identifier
1538185764
Registry record updated Sep 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X
License
102107 Issued in MO
Practice address
4488 Forest Park Ave
Ste 201
Saint Louis, MO 63108-2215
Phone
(314) 286-2715
Fax
(314) 286-2701
NPI assigned
Jul 14, 2006
Last updated
Sep 29, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 29, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Geriatric Medicine (Internal Medicine) Physician 207RG0300X 102107 MO Primary

Addresses

Primary practice location

4488 Forest Park Ave
Ste 201
Saint Louis, MO 63108-2215

Mailing address

660 S Euclid Ave
C B 8031
Saint Louis, MO 63110-1010
Phone (314) 286-2715

Other identifiers 1

IdentifierTypeStateIssuer
208688002MedicaidMO

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: No
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
102107MOMDGeriatric Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Jewish Center for Aged Past Accepting new patients

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1152835200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1538185764",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "660 S EUCLID AVE",
            "address_2": "C B 8031",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101010",
            "telephone_number": "314-286-2715",
            "fax_number": "314-286-2701"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4488 FOREST PARK AVE",
            "address_2": "STE 201",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631082215",
            "telephone_number": "314-286-2715",
            "fax_number": "314-286-2701"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VILLAREAL",
        "first_name": "DENNIS",
        "middle_name": "T",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-14",
        "last_updated": "2026-09-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "MO",
            "license": "102107",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "208688002",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.