Marco Ruiz Santillan, MD

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

289988 Issued in NY

Practice address

110 E 59TH St FL 8
New York, NY 10022-1304

Phone

(212) 434-3934

Fax

(212) 434-4974

NPI assigned

Aug 6, 2014

Sex

Male

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 NY, MN2 enrollments

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 2

Specialty

Endocrinology

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Group Health IncGroup PAC ID 1759293954, 1,627 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Regions Hospital Hospital, Saint Paul, MN, CCN 240106
• Park Nicollet Methodist Hospital Hospital, Saint Louis Park, MN, CCN 240053

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mruizsantillan840568@nychhc.direct-ci.com

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.

• Group Health, Inc.

  • Multi-Specialty Clinic/Center
  • Minneapolis, MN
  • NPI 1710924683
  Medicare reassignment Care Compare group NPD
• Harlem Medical Associates PC

  • General Practice Physician
  • New York, NY
  • NPI 1487957692
  Medicare reassignment NPD
• Metropolitan Medical Practice Plan PC

  • General Practice Physician
  • New York, NY
  • NPI 1306138383
  Medicare reassignment NPD
• Group Health, Inc.

  • General Practice Dentistry
  • Saint Paul, MN
  • NPI 1952042053
  NPD

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

• Park Nicollet Methodist Hospital

  • General Acute Care Hospital
  • Maple Grove, MN
  • NPI 1174980692
  Care Compare affiliation
• Park Nicollet Methodist Hospital

  • General Acute Care Hospital
  • St Louis Park, MN
  • NPI 1194113217
  Care Compare affiliation
• Park Nicollet Methodist Hospital

  • General Acute Care Hospital
  • St Louis Park, MN
  • NPI 1245615772
  Care Compare affiliation
• Park Nicollet Methodist Hospital

  • Mental Illness Community Based Residential Treatment Facility
  • St Louis Park, MN
  • NPI 1578717336

  Hospital

  Care Compare affiliation
• Park Nicollet Methodist Hospital

  • General Acute Care Hospital
  • St Louis Park, MN
  • NPI 1649220724
  Care Compare affiliation
• Park Nicollet Methodist Hospital

  • General Acute Care Hospital
  • St Louis Park, MN
  • NPI 1942585286
  Care Compare affiliation
• Regions Hospital

  • Pharmacy
  • Saint Paul, MN
  • NPI 1013951748

  Hospital

  Care Compare affiliation
• Regions Hospital

  • General Acute Care Hospital
  • Woodbury, MN
  • NPI 1104681105
  Care Compare affiliation
• Regions Hospital

  • Rehabilitation Clinic/Center
  • Saint Paul, MN
  • NPI 1134157092

  Hospital

  Care Compare affiliation
• Regions Hospital

  • General Acute Care Hospital
  • Saint Paul, MN
  • NPI 1306873872
  Care Compare affiliation
• Regions Hospital

  • General Acute Care Hospital
  • Saint Paul, MN
  • NPI 1629006457
  Care Compare affiliation
• Regions Hospital

  • General Acute Care Hospital
  • Stillwater, MN
  • NPI 1679391122
  Care Compare affiliation

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

{
    "created_epoch": "1407283200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1831508654",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "110 E 59TH ST RM 8B",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100221359",
            "telephone_number": "212-434-3994",
            "fax_number": "212-434-4974"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "110 E 59TH ST FL 8",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100221304",
            "telephone_number": "212-434-3934",
            "fax_number": "212-434-4974"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RUIZ SANTILLAN",
        "first_name": "MARCO",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-08-06",
        "last_updated": "2026-09-01",
        "certification_date": "2026-09-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "NY",
            "license": "289988",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jessica Sharon Ruit, PA-C
• Hyacinth Liu Ruiter, M.D.
• Abigail Mae Perena Ruivivar
• Deyanira Ruiz Gardere, LMSW
• Cristal E Ruiz Rodriguez
• Maria Teresa Ruiz Tsukazan, M.D.
• Nicholas Andres Ruiz-Huidobro Magdits
• Elva Ruiz-Morales, RN
• Adrianna Ruiz
• Alizabeth Ruiz, D.C

• Endocrinology, Diabetes & Metabolism Physician in New York, NY
• Providers in New York, NY by specialty
• Endocrinology, Diabetes & Metabolism Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 1, 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.