Natasha Renee Rybak, M.D.

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

MD13759 Issued in RI

Practice address

1125 N Main St
Providence, RI 02904-5739

Phone

(401) 793-2928

Fax

(401) 793-7401

NPI assigned

Jun 5, 2007

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in RI

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

Infectious DiseaseAlso: Internal Medicine

Education

Other, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Affinity Physicians LLC.Group PAC ID 0244413391, 723 clinicians

Lifespan Physician Group IncGroup PAC ID 2567455082, 1,151 clinicians

The Miriam HospitalGroup PAC ID 6901796408, 178 clinicians

Brown MedicineGroup PAC ID 0446159776, 220 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• The Miriam Hospital Hospital, Providence, RI, CCN 410012
• Rhode Island Hospital Hospital, Providence, RI, CCN 410007

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nrybak15298@brownhealth.medalliesdirect.net

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.

• Affinity Physicians LLC.

  • Internal Medicine Physician
  • Warwick, RI
  • NPI 1184944662

  Pediatrics

  Medicare reassignment Care Compare group NPD
• Brown Medicine

  • Internal Medicine Physician
  • Riverside, RI
  • NPI 1689626764

  Infectious Disease

  Medicare reassignment Care Compare group NPD
• Lifespan Physician Group, Inc.

  • General Practice Physician
  • Providence, RI
  • NPI 1407116643
  Medicare reassignment Care Compare group NPD
• The Miriam Hospital

  • Medical Specialty Clinic/Center
  • Providence, RI
  • NPI 1275810434
  Medicare reassignment Care Compare group NPD
• The Miriam Hospital

  • Infectious Disease Physician
  • Providence, RI
  • NPI 1568567790
  Medicare reassignment
• Affinity Physicians LLC

  • Anesthesiology Physician
  • Providence, RI
  • NPI 1053038471
  NPD
• Brown Medicine

  • Gastroenterology Physician
  • Providence, RI
  • NPI 1730827767
  NPD
• Lifespan Corporation

  • Children's Rehabilitation Hospital
  • Providence, RI
  • NPI 1790221232
  NPD
• Lifespan Physician Group, Inc.

  • Emergency Medicine Physician
  • Providence, RI
  • NPI 1568325678

  Pediatrics

  NPD
• Lifespan Physician Group, Inc.

  • Psychiatry Physician
  • Providence, RI
  • NPI 1548506793
  NPD (past)
• The Miriam Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1770520462
  NPD (past)

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

• Rhode Island Hospital

  • Ambulance
  • Providence, RI
  • NPI 1053552299

  Hospital

  Care Compare affiliation
• Rhode Island Hospital

  • Clinic/Center
  • Providence, RI
  • NPI 1154663383

  Hospital

  Care Compare affiliation
• Rhode Island Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1588659528
  Care Compare affiliation
• Rhode Island Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1972768174
  Care Compare affiliation
• The Miriam Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1487649430
  Care Compare affiliation

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

{
    "created_epoch": "1181001600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772668800000",
    "number": "1932301330",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15 LA SALLE SQ",
            "city": "PROVIDENCE",
            "state": "RI",
            "postal_code": "029031814",
            "telephone_number": "401-444-6779",
            "fax_number": "401-444-6912"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1125 N MAIN ST",
            "city": "PROVIDENCE",
            "state": "RI",
            "postal_code": "029045739",
            "telephone_number": "401-793-2928",
            "fax_number": "401-793-7401"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "101 Dudley Street",
            "address_2": "Infectious Disease",
            "address_purpose": "LOCATION",
            "city": "Providence",
            "state": "RI",
            "postal_code": "02905",
            "country_code": "US",
            "telephone_number": "401-453-7950",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "164 Summit Ave",
            "address_purpose": "LOCATION",
            "city": "Providence",
            "state": "RI",
            "postal_code": "029062853",
            "country_code": "US",
            "telephone_number": "401-793-2928",
            "fax_number": "401-793-7401",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RYBAK",
        "first_name": "NATASHA",
        "middle_name": "RENEE",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-06-05",
        "last_updated": "2026-03-05",
        "certification_date": "2026-03-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0208X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Infectious Diseases",
            "state": "RI",
            "license": "MD13759",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "RI",
            "license": "MD13759",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1932301330",
            "state": "RI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kathryn M Ryan, LCSW, LICSW
• Laura Nina Ryan, LICSW
• Meghan M Ryan, PT
• Sara Louise Ryan, D.A.
• Suzanne L Ryan, N.P.
• Heather Rybasack-Smith, MD
• Beth Ann Ryder, MD
• John Saad, DMD
• Marwan S Saad, M.D., PHD
• Celine Saade

• Infectious Disease Physician in Providence, RI
• Providers in Providence, RI by specialty
• Infectious Disease Physician in Rhode Island

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 5, 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.