Emma Everlyn Tunac Castillo Bercasio, MD

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

0101266473 Issued in VA

Practice address

400 Sentara Cir Ste 201B
Williamsburg, VA 23188-5716

Phone

(757) 345-4655

Fax

(757) 390-4892

NPI assigned

Sep 29, 2006

Last updated

Jun 2, 2025By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 4

Other names 1

• Emma Everlyn Tunac Castilllo Former name

Medicare fee-for-service enrollment

Enrolled in VA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Infectious Disease

Education

Other, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sentara Medical GroupGroup PAC ID 8921903923, 1,396 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sentara Williamsburg Regional Medical Center Hospital, Williamsburg, VA, CCN 490066
• Sentara Obici Hospital Hospital, Suffolk, VA, CCN 490044
• Sentara Norfolk General Hospital Hospital, Norfolk, VA, CCN 490007
• Sentara Careplex Hospital Hospital, Hampton, VA, CCN 490093

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ecastillo516228@direct.sentara.net

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.

• Sentara Medical Group

  • Family Medicine Physician
  • Norfolk, VA
  • NPI 1265485270
  Medicare reassignment Care Compare group NPD
• Tarboro Internal Medicine PA

  • Infectious Disease Physician
  • Tarboro, NC
  • NPI 1447323191
  NPD (past)

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

• Sentara Hospitals

  dba Sentara Nightingale

  • Air Ambulance
  • Norfolk, VA
  • NPI 1235205147

  Hospital

  Care Compare affiliation
• Sentara Hospitals

  dba Sentara Careplex Hospital

  • General Acute Care Hospital
  • Hampton, VA
  • NPI 1336109107
  Care Compare affiliation
• Sentara Hospitals

  dba Sentara Obici Hospital

  • General Acute Care Hospital
  • Suffolk, VA
  • NPI 1376540138
  Care Compare affiliation
• Sentara Hospitals

  dba Sentara Norfolk General Hospital

  • General Acute Care Hospital
  • Norfolk, VA
  • NPI 1437119310
  Care Compare affiliation
• Sentara Hospitals

  dba Sentara Williamsburg Regional Medical Center

  • General Acute Care Hospital
  • Williamsburg, VA
  • NPI 1619938149
  Care Compare affiliation

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

{
    "created_epoch": "1159488000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748822400000",
    "number": "1083706568",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 SENTARA CIR STE 201B",
            "city": "WILLIAMSBURG",
            "state": "VA",
            "postal_code": "231885716",
            "telephone_number": "757-345-4655",
            "fax_number": "757-390-4892"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 SENTARA CIR STE 201B",
            "city": "WILLIAMSBURG",
            "state": "VA",
            "postal_code": "231885716",
            "telephone_number": "757-345-4655",
            "fax_number": "757-390-4892"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2704 N Main St",
            "address_2": "Suite A",
            "address_purpose": "LOCATION",
            "city": "Tarboro",
            "state": "NC",
            "postal_code": "278861918",
            "country_code": "US",
            "telephone_number": "252-823-0808",
            "fax_number": "252-823-6010",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CASTILLO BERCASIO",
        "first_name": "EMMA",
        "middle_name": "EVERLYN TUNAC",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-09-29",
        "last_updated": "2025-06-02",
        "certification_date": "2025-06-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "NC",
            "license": "200100655",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "VA",
            "license": "0101266473",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "5900019",
            "state": "NC"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "129XG",
            "state": "NC"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CIGNA",
            "identifier": "4213840",
            "state": "NC"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE RAILROAD",
            "identifier": "P00671694",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "EMMA",
            "last_name": "CASTILLLO",
            "middle_name": "EVERLYN TUNAC",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Patricia R Casey Duncan, D.C.
• Erin E Casey, NP
• Paul Cash, MD
• Douglas Leonard Cassidy, OD
• Lisa Marie Cassidy, LCSW
• Darwin-Dean Tabios Castillo, M.D.
• Georgia Florence Catlin, PNP-PC
• Danielle Cauley, LPC, CSAC
• Melinda Cave
• Shiny Kaithakuzhiyil Chacko

• Infectious Disease Physician in Williamsburg, VA
• Providers in Williamsburg, VA by specialty
• Infectious Disease Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 2, 2025; 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.