Aloysius Kihyok Rho, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

MD26835 Issued in ME

Practice address

121 Medical Center Dr Ste 3400
Brunswick, ME 04011-2675

Phone

(207) 406-7300

Fax

(207) 835-4736

NPI assigned

Jul 26, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 8

Medicare fee-for-service enrollment

Enrolled in ME

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

Gastroenterology

Education

Other, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mercy HospitalGroup PAC ID 6103737812, 307 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northern Light Mercy Hospital Hospital, Portland, ME, CCN 200008

Merit-based Incentive Payment System (MIPS)

Final score

81.67 of 100Reported as group

Quality

60.7

Promoting interoperability

91

Improvement activities

40

Cost

73.8

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: arho597325@direct.mmc.mainehealth.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.

• Mercy Hospital

  • General Acute Care Hospital
  • Portland, ME
  • NPI 1629078712
  Medicare reassignment Care Compare group NPD
• Mercy Hospital

  • Rural Health Clinic/Center
  • Windham, ME
  • NPI 1396496378
  NPD
• Mercy Hospital

  • General Acute Care Hospital
  • Portland, ME
  • NPI 1427313048
  NPD
• Advanced Gastroenterology Associates, LLC

  • Gastroenterology Physician
  • Howell, NJ
  • NPI 1790910487
  NPD (past)
• Atlantic Coast Gastroenterology Associates

  • Gastroenterology Physician
  • Brick, NJ
  • NPI 1679512578
  NPD (past)

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

• Mercy Hospital

  • General Acute Care Hospital
  • Portland, ME
  • NPI 1427313048
  Care Compare affiliation
• Mercy Hospital

  • General Acute Care Hospital
  • Portland, ME
  • NPI 1629078712
  Care Compare affiliation

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

{
    "created_epoch": "1122336000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783987200000",
    "number": "1710987334",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "121 MEDICAL CENTER DR STE 3400",
            "city": "BRUNSWICK",
            "state": "ME",
            "postal_code": "040112675",
            "telephone_number": "207-406-7300",
            "fax_number": "207-835-4736"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "121 MEDICAL CENTER DR STE 3400",
            "city": "BRUNSWICK",
            "state": "ME",
            "postal_code": "040112675",
            "telephone_number": "207-406-7300",
            "fax_number": "207-835-4736"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "731 Alexander Rd",
            "address_2": "Suite 100",
            "address_purpose": "LOCATION",
            "city": "Princeton",
            "state": "NJ",
            "postal_code": "085406345",
            "country_code": "US",
            "telephone_number": "609-924-1422",
            "fax_number": "609-924-7473",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RHO",
        "first_name": "ALOYSIUS",
        "middle_name": "KIHYOK",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-26",
        "last_updated": "2026-07-14",
        "certification_date": "2026-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NJ",
            "license": "25MA07036700",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "ME",
            "license": "MD26835",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "KEYSTONE",
            "identifier": "0821011000",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CIGNA",
            "identifier": "2168365003",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AMERIHEALTH PERSONAL CHOI",
            "identifier": "0000910163",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PERSONAL CHOICE",
            "identifier": "000795866",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNA",
            "identifier": "2326267",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "INDEPENDENT BLUE CROSS",
            "identifier": "00795866",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AMERIHEALTH HMO",
            "identifier": "0811335000",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAID FOR RR",
            "identifier": "100014087",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Christopher A Regnier, D.O.
• Michael F Reny, BS
• Sebastian Gonzales Reyes Jr., CRNA
• Jacques M. Reynolds, D.O.
• Marilyn Joyce Reynolds, LCSW
• Marcus Riccioni, M.D.
• Thomas Gerard Rice, DDS, MPH
• Cristin Rose Richards, AU.D.
• Elizabeth Richards, L.C.S.W.
• Melissa Ridlon

• Gastroenterology Physician in Brunswick, ME
• Providers in Brunswick, ME by specialty
• Gastroenterology Physician in Maine

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 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.