Optimal Health Care, LLC

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

041094 Issued in GA

Legal business name

OPTIMAL HEALTH CARE, LLC

Practice address

1121 Johnson Ferry Rd
Suite 205
Marietta, GA 30068-5425

Phone

(770) 485-3837

Fax

(470) 377-4468

NPI assigned

May 6, 2013

Organization subpart

No

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

Authorized official

Name

Dr. Sidney Paul Chastang, M.D.NPI 1720077225

Title

Manager

Phone

(770) 485-3837

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in GA

Enrollment records 1

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

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/20066/brand/1/csg/1/fhir/r4

Practitioners 1

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

• Sidney Chastang, MD

  • Internal Medicine Physician
  • Marietta, GA
  • NPI 1720077225
  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1367798400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1744761600000",
    "number": "1255776134",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1121 JOHNSON FERRY RD",
            "address_2": "SUITE 205",
            "city": "MARIETTA",
            "state": "GA",
            "postal_code": "300685425",
            "telephone_number": "770-485-3837",
            "fax_number": "470-377-4468"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1121 JOHNSON FERRY RD",
            "address_2": "SUITE 205",
            "city": "MARIETTA",
            "state": "GA",
            "postal_code": "300685425",
            "telephone_number": "770-485-3837",
            "fax_number": "470-377-4468"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "OPTIMAL HEALTH CARE, LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2013-05-06",
        "last_updated": "2025-04-16",
        "certification_date": "2025-04-16",
        "status": "A",
        "authorized_official_last_name": "CHASTANG",
        "authorized_official_first_name": "SIDNEY",
        "authorized_official_middle_name": "PAUL",
        "authorized_official_title_or_position": "MANAGER",
        "authorized_official_telephone_number": "770-485-3837",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "GA",
            "license": "041094",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• James Oppenheim, MPH, DC
• Optical Concepts, Inc.
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• Optimum Healthcare Associates,LLC
• Optique Atlanta, LLC
• Optum Infusion Services 209, Inc,

• Internal Medicine Physician in Marietta, GA
• Providers in Marietta, GA by specialty
• Internal Medicine Physician in Georgia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.