David R. Buyer, MD, SC

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Legal business name

DAVID R. BUYER, MD, SC

Doing business as

Quintessential Care

Practice address

850 S Wabash Ave Ste 210
Chicago, IL 60605-3642

Phone

(312) 598-3520

Fax

(312) 598-3525

NPI assigned

Sep 14, 2011

Organization subpart

No

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

Authorized official

Name

Dr. David R. Buyer, M.D.

Title

Physician Owner

Phone

(312) 598-3520

Specialties & licenses 1

Addresses

Other names 1

• Quintessential Care Doing business as

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Locations

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Brent M Nathan, MD

  • Internal Medicine Physician
  • Bannockburn, IL
  • NPI 1639559719
  NPD
• Naomi Mae Twigg, FNP-BC, RN

  • Primary Care Nurse Practitioner
  • Chicago, IL
  • NPI 1689203838
  NPD

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

{
    "created_epoch": "1315958400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1701648000000",
    "number": "1962784124",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "322 GREENLEAF AVE",
            "city": "WILMETTE",
            "state": "IL",
            "postal_code": "600911910",
            "telephone_number": "312-942-5100",
            "fax_number": "312-942-5109"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "850 S WABASH AVE STE 210",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606053642",
            "telephone_number": "312-598-3520",
            "fax_number": "312-598-3525"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "DAVID R. BUYER, MD, SC",
        "organizational_subpart": "NO",
        "enumeration_date": "2011-09-14",
        "last_updated": "2023-12-04",
        "certification_date": "2023-12-04",
        "status": "A",
        "authorized_official_last_name": "BUYER",
        "authorized_official_first_name": "DAVID",
        "authorized_official_middle_name": "R.",
        "authorized_official_title_or_position": "PHYSICIAN OWNER",
        "authorized_official_telephone_number": "312-598-3520",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Quintessential Care",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• David M Sloven, MDSC
• David Meyerson PHD LLC
• David Moore, D.O., S.C.
• David N Butler MD SC
• David P Ley Consulting LTD.
• David S Behm DDS PC
• David Tartof MD, PHD, Inc
• David W Tapani DDS PC
• Abel P David, MD
• Elaine David, DO

• Internal Medicine Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Internal Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 4, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.