Ryan Din, MD

Primary specialty

Allergy & Immunology (Internal Medicine) PhysicianTaxonomy code 207RA0201X

License

1020183 Issued in MA

Practice address

75 Kneeland St FL 1
Boston, MA 02111-1901

Phone

(617) 804-6767

Fax

(877) 726-8492

NPI assigned

May 10, 2019

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 1

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

Allergy/ImmunologyAlso: Internal Medicine

Education

Harvard Medical School, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncGroup PAC ID 4486567104, 1,693 clinicians

Associated Physicians of Harvard Medical Faculty Physicians at Beth IsGroup PAC ID 6305749987, 566 clinicians

Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Boston Food Allergy Center LLC Bi NetworkGroup PAC ID 6901228352, 3 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: din.ryan.shc@direct.partners.masshiway.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.

• Associated Physicians of Harvard Medical Faculty Physicians at Beth Is

  dba Medicine - APHMFP at BIDMC Inc.

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1497151773
  Medicare reassignment Care Compare group NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1194765438
  Medicare reassignment Care Compare group NPD
• Massachusetts General Physicians Organization Inc

  • Dermatology Physician
  • Boston, MA
  • NPI 1801874573

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Boston Food Allergy Center LLC Bi Network

  • Gastroenterology Physician
  • Boston, MA
  • NPI 1710523147
  Medicare reassignment Care Compare group
• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Medicare reassignment NPD
• Associated Physicians of Harvard Medical Faculty Physicians at Beth Is

  dba APHMFP-Emergency Medicine

  • Emergency Medical Services (Emergency Medicine) Physician
  • Boston, MA
  • NPI 1952358533
  Medicare reassignment
• Associated Physicians of Harvard Medical Faculty Physicians at Beth Is

  dba Associated Physicians of HMFP

  • Multi-Specialty Clinic/Center
  • Boston, MA
  • NPI 1861216038
  NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba Emergency Medicine - HMFP at BIDMC

  • Emergency Medicine Physician
  • Boston, MA
  • NPI 1316987993
  NPD
• Spaulding Rehabilitation Hospital Corporation

  dba Spaulding Rehabilitation Ambulance

  • Land Ambulance
  • Cambridge, MA
  • NPI 1740250547
  NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba Dermatology - HMFP at BIDMC

  • Dermatology Physician
  • Boston, MA
  • NPI 1043250616
  NPD (past)

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

• Beth Israel Deaconess Medical Center, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1548202641
  Care Compare affiliation

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

{
    "created_epoch": "1557446400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770336000000",
    "number": "1679139133",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "550 1ST AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100166402"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "75 KNEELAND ST FL 1",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021111901",
            "telephone_number": "617-804-6767",
            "fax_number": "877-726-8492"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "330 Brookline Ave",
            "address_2": "Deaconess 311",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "022155400",
            "country_code": "US",
            "telephone_number": "617-667-9600",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "55 Fruit St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142621",
            "country_code": "US",
            "telephone_number": "617-726-9700",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIN",
        "first_name": "RYAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-05-10",
        "last_updated": "2026-02-06",
        "certification_date": "2026-02-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RA0201X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Allergy & Immunology",
            "state": "MA",
            "license": "1020183",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MA",
            "license": "1020183",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "1020183",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TISCH HOSPITAL",
            "identifier": "13-3971298",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Helena Dimitriou, PA
• Dimitris Zourdos DMD PC
• Dimo Dimchev Dimitrov, M.D.
• Teresa Ann Dimodica, MSN, NP-C, RN
• Ivan Petrov Dimov
• Shai Dina
• Pradeep Dinakar, MD, MS, MBA
• Gabrielle Rose Dinapoli
• Lauren Elizabeth Dinapoli, PA-C
• James Anthony Dinardo, M.D.

• Allergy & Immunology (Internal Medicine) Physician in Boston, MA
• Providers in Boston, MA by specialty
• Allergy & Immunology (Internal Medicine) Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 6, 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.