Individual provider · Type 1 NPI

John Mark Ryan, MD

Internal Medicine Physician · Providence, RI

NPI number 1841230968 Active

Practice location

245 Chapman St
Providence, RI 02905-4539

Call (401) 444-4741 Map

Fax (401) 444-4445

Mailing address

Dept 3010, PO Box 986524
Boston, MA 02298-6524

Other practice locations

  • 375 Wampanoag Trl, Suite 201, Riverside, RI 02915-2232 · (401) 649-4020

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000XMD07097 (RI)

Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…

6 other providers at this address

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About NPI 1841230968

John Mark Ryan, MD's National Provider Identifier is 1841230968, issued on Jun 7, 2006. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Providence, RI. The record was last updated on Aug 14, 2025.