Colleen Therese O'Brien, DNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

26846 Issued in SC

Practice address

316 Calhoun St
Charleston, SC 29401-1113

Phone

(843) 724-2450

Fax

(843) 724-2455

NPI assigned

Dec 19, 2022

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Other names 1

• Colleen Therese O'Brien Professional name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in SC

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Roper Saint Francis Physicians NetworkGroup PAC ID 5193874824, 530 clinicians

24 On Physicians of SC LLCGroup PAC ID 5890127344, 136 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Roper Hospital Hospital, Charleston, SC, CCN 420087

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cobrien1653744@direct.bsmhealth.org

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

• 24 On Physicians of SC, LLC

  • Hospitalist Physician
  • Charleston, SC
  • NPI 1144877655
  Medicare reassignment Care Compare group NPD
• Roper Saint Francis Physicians Network

  • Surgery Physician
  • Charleston, SC
  • NPI 1124431606
  Medicare reassignment Care Compare group NPD
• Roper St. Francis Specialty Physicians

  • Surgery Physician
  • Ladson, SC
  • NPI 1528945912
  Medicare reassignment NPD
• Roper Saint Francis Physicians Network

  • Internal Medicine Physician
  • Mt Pleasant, SC
  • NPI 1174766463
  NPD
• Roper Saint Francis Physicians Network

  • Obstetrics & Gynecology Physician
  • Charleston, SC
  • NPI 1811857352
  NPD
• Roper Saint Francis Physicians Network

  • Internal Medicine Physician
  • Charleston, SC
  • NPI 1013158187
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Roper Hospital, Inc

  • General Acute Care Hospital
  • Charleston, SC
  • NPI 1962472860
  Care Compare affiliation

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

{
    "created_epoch": "1671408000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788393600000",
    "number": "1801508148",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 751649",
            "city": "CHARLOTTE",
            "state": "NC",
            "postal_code": "282751649",
            "telephone_number": "888-472-0043",
            "fax_number": "843-724-2440"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "316 CALHOUN ST",
            "city": "CHARLESTON",
            "state": "SC",
            "postal_code": "294011113",
            "telephone_number": "843-724-2450",
            "fax_number": "843-724-2455"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "319 Folly Rd",
            "address_purpose": "LOCATION",
            "city": "Charleston",
            "state": "SC",
            "postal_code": "294122518",
            "country_code": "US",
            "telephone_number": "843-203-2246",
            "fax_number": "843-203-2247",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "180 Wingo Way Ste 202",
            "address_purpose": "LOCATION",
            "city": "MT Pleasant",
            "state": "SC",
            "postal_code": "294641811",
            "country_code": "US",
            "telephone_number": "843-402-5283",
            "fax_number": "843-284-0826",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "COLLEEN",
        "middle_name": "THERESE",
        "credential": "DNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-12-19",
        "last_updated": "2026-09-03",
        "certification_date": "2026-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "SC",
            "license": "26846",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "NP9092",
            "state": "SC"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "colleen.obrien@rsfh.com",
            "affiliation": "Y",
            "endpointDescription": "email",
            "affiliationName": "Roper Saint Francis",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "180 Wingo Way Ste 306",
            "city": "Mount Pleasant",
            "state": "SC",
            "country_code": "US",
            "postal_code": "294641812",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "COLLEEN",
            "last_name": "O'BRIEN",
            "middle_name": "THERESE",
            "credential": "DNP, FNP-BC",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

• Ugochi Chidalu Nwamara, PHARMD
• Chiagozie Nwosu, MD
• Megan Margaret Nygaard
• Katherine Kennedy Proctor Nyland, PA
• Seung-Jun O, MD
• Karen L. O'Brien, MSN, RN, ARNP-C
• Nikalina O'Brien, MD
• Paul Edward O'Brien, MD
• Terrence X O'Brien, MD, MS, FACC
• Edward Conyers O'Bryan III, M.D.

• Family Nurse Practitioner in Charleston, SC
• Providers in Charleston, SC by specialty
• Family Nurse Practitioner in South Carolina

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.