Steven Guo Wan

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

1015843 Issued in MA

Practice address

255 Low St Ste 101
Newburyport, MA 01950-3596

Phone

(978) 556-0100

NPI assigned

May 6, 2019

Last updated

Dec 18, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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 MA

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

Obstetrics/Gynecology

Education

Texas Tech University Health Science Center School of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Seacoast Affiliated Group Practice IncGroup PAC ID 1658357843, 50 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Anna Jaques Hospital Hospital, Newburyport, MA, CCN 220029

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: swan448814@direct.bilh.masshiway.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.

• Seacoast Affiliated Group Practice, Inc.

  • Clinic/Center
  • Newburyport, MA
  • NPI 1801892344
  Medicare reassignment Care Compare group NPD
• Anna Jaques Hospital

  • General Acute Care Hospital
  • Newburyport, MA
  • NPI 1992779482
  NPD (past)
• Newburyport Cardiovascular Associates, LLC

  dba Clipper Cardiovascular Associates

  • Cardiovascular Disease Physician
  • Newburyport, MA
  • NPI 1811315831
  NPD (past)
• River Valley Infectious Disease Specialists Inc.

  • Infectious Disease Physician
  • Newburyport, MA
  • NPI 1366712002
  NPD (past)

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

• Anna Jaques Hospital

  • General Acute Care Hospital
  • Newburyport, MA
  • NPI 1992779482
  Care Compare affiliation

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

{
    "created_epoch": "1557100800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766016000000",
    "number": "1750946778",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 24529",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100873729"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "255 LOW ST STE 101",
            "city": "NEWBURYPORT",
            "state": "MA",
            "postal_code": "019503596",
            "telephone_number": "978-556-0100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "600 Primrose St",
            "address_purpose": "LOCATION",
            "city": "Haverhill",
            "state": "MA",
            "postal_code": "018302659",
            "country_code": "US",
            "telephone_number": "978-556-0100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "750 E Adams St",
            "address_purpose": "LOCATION",
            "city": "Syracuse",
            "state": "NY",
            "postal_code": "13210",
            "country_code": "US",
            "telephone_number": "315-464-4006",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WAN",
        "first_name": "STEVEN",
        "middle_name": "GUO",
        "name_prefix": "Dr.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-05-06",
        "last_updated": "2025-12-18",
        "certification_date": "2025-12-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MA",
            "license": "1015843",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Walgreen Eastern Co Inc (Walgreens #02564)
• Christine Lupa Wallace, N.P.
• Shannen Margaret Wallace
• Melissa Walsh
• Nicole Walsh
• Erin Ward, PT, DPT
• Mark Ryan Warnat, PA-C
• Hannah Marie Watkins, PSYD
• Paulina Watson, LIC. AC.
• Watts Eye Associates LLC

• Obstetrics & Gynecology Physician in Newburyport, MA
• Providers in Newburyport, MA by specialty
• Obstetrics & Gynecology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 18, 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.