Si Si Han, PHD, ABPP

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

06921 Issued in MD

Practice address

3300 N Ridge Rd Ste 230
Ellicott City, MD 21043-3387

Phone

(410) 988-2192

Fax

(410) 988-2927

NPI assigned

Aug 9, 2018

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in VA, MD, DC3 enrollments

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 3

Specialty

Clinical Psychologist

Education

Other, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

State licenses

Practice roles

Locations

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.

• Brain & Behavior Care LLC

  • Clinical Neuropsychologist
  • Ellicott City, MD
  • NPI 1780376731
  Medicare reassignment NPD Authorized official
• Chinese Culture and Community Service Center, Inc.

  • Primary Care Clinic/Center
  • Gaithersburg, MD
  • NPI 1033509591

  DC

  Medicare reassignment NPD
• Winchester Medical Center

  • Critical Care Medicine (Internal Medicine) Physician
  • Winchester, VA
  • NPI 1679711261
  Medicare reassignment NPD
• Chinese Culture and Community Service Center, Inc.

  • Occupational Therapist
  • Gaithersburg, MD
  • NPI 1891328563
  NPD
• Winchester Medical Center

  • Pediatrics Physician
  • Winchester, VA
  • NPI 1013874742
  NPD
• Winchester Medical Center

  • Obstetrics & Gynecology Physician
  • Winchester, VA
  • NPI 1760433791
  NPD
• Chinese Culture and Community Services Center, Inc.

  • In Home Supportive Care Agency
  • Gaithersburg, MD
  • NPI 1164807020
  NPD (past)

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

{
    "created_epoch": "1533772800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767139200000",
    "number": "1104305218",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3300 N RIDGE RD STE 230",
            "city": "ELLICOTT CITY",
            "state": "MD",
            "postal_code": "210433387",
            "telephone_number": "410-988-2192",
            "fax_number": "410-988-2927"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3300 N RIDGE RD STE 230",
            "city": "ELLICOTT CITY",
            "state": "MD",
            "postal_code": "210433387",
            "telephone_number": "410-988-2192",
            "fax_number": "410-988-2927"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAN",
        "first_name": "SI SI",
        "credential": "PHD, ABPP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-08-09",
        "last_updated": "2025-12-31",
        "certification_date": "2025-12-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "MD",
            "license": "06921",
            "primary": true
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "VA",
            "license": "0810006276",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christopher Hall, LGPC
• Uzelia Josheba Hall, M.D.
• Halliburton Family Dentistry
• Denise Vivian Halliburton, DDS
• Constance Halligan, PH.D.
• Sung Soon Han, PHD
• Hana Pharmacy Ellicott City
• Caitlin Hancock, LCSW-C
• Handy BBMT Inc
• Claire Hanlein, MPT

• Clinical Psychologist in Ellicott City, MD
• Providers in Ellicott City, MD by specialty
• Clinical Psychologist in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 31, 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.