Xiaoxi Ouyang, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

16870 Issued in NH

Practice address

154 Broad St Ste 1510
Nashua, NH 03063-3207

Phone

(617) 272-7057

Fax

(949) 864-3519

NPI assigned

Jul 16, 2007

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

Medicare fee-for-service enrollment

Enrolled in NH

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

Internal Medicine

Education

McGill University Faculty of Dentistry, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: xouyang401113@direct.dartmouth-hitchcock.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.

• Serenity Medical Weight Loss Clinic LLC

  dba Serenity Primary Care and Medical Weight Loss Clinic

  • Internal Medicine Physician
  • Nashua, NH
  • NPI 1003608225
  Medicare reassignment NPD Authorized official
• Dartmouth-Hitchcock Clinic

  • Internal Medicine Physician
  • Lebanon, NH
  • NPI 1548210198
  Medicare reassignment NPD
• The New London Hospital Association, Inc.

  • Critical Access Hospital
  • New London, NH
  • NPI 1831200583

  Internal Medicine

  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Specialist
  • Watertown, MA
  • NPI 1629398219

  NH

  Medicare reassignment NPD
• The New London Hospital Association, Inc.

  dba d/b/a New London Hospital EMS

  • Ambulance
  • New London, NH
  • NPI 1639610611
  NPD
• Steward Medical Group, Inc

  • Specialist
  • Brighton, MA
  • NPI 1356654495
  NPD
• The New London Hospital Association, Inc.

  dba Newport Health Center

  • Multi-Specialty Clinic/Center
  • Newport, NH
  • NPI 1770684672
  NPD (past)

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

{
    "created_epoch": "1184544000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755561600000",
    "number": "1649479064",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "154 BROAD ST STE 1510",
            "city": "NASHUA",
            "state": "NH",
            "postal_code": "030633207",
            "telephone_number": "617-272-7057",
            "fax_number": "949-864-3519"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "154 BROAD ST STE 1510",
            "city": "NASHUA",
            "state": "NH",
            "postal_code": "030633207",
            "telephone_number": "617-272-7057",
            "fax_number": "949-864-3519"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OUYANG",
        "first_name": "XIAOXI",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-07-16",
        "last_updated": "2025-08-19",
        "certification_date": "2025-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NH",
            "license": "16870",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jose Alejandro Ossa Concha, M.D.
• Shannon K Osterhoudt, LICSW
• Rebecca Ostertag
• Austin James Otoole
• Stephanie Ouellette
• Lisa Owen, OT
• Jennifer R Owens, AGNP-C
• Julie Oxenberg, PH.D.
• Kathryn A. Paar, RN, CNM
• Roxanne Paciesas, BSW

• Internal Medicine Physician in Nashua, NH
• Providers in Nashua, NH by specialty
• Internal Medicine Physician in New Hampshire

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 19, 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.