Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Michael Graff, MD
Urology Physician in Boardman, OH · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1447717764
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Registry record
Entity type Individual (Type 1)
Name John Michael Graff
Credential MD
Sex Male
Practice address 7430 Southern Blvd, Boardman, OH, 44512
Phone (330) 729-9214
Enumeration date Feb 22, 2019
Last updated in NPPES Sep 12, 2024
Taxonomy & licenses
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty.
Frequently asked questions
What specialty is John Graff?
John Graff is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Richard Memo Urology Physician · Boardman, OH NPI 1710951702 Neo Urology Associates Inc Urology Physician · Boardman, OH NPI 1598798878 Dermatology Associates of Youngstown Inc Dermatology Physician · Youngstown, OH NPI 1033205216 Cortney Birchak Family Nurse Practitioner · Boardman, OH NPI 1255994356 Aaron Bremner Family Nurse Practitioner · Boardman, OH NPI 1588335780 Lauren Kegelmyer Urology Physician · Youngstown, OH NPI 1184483307 Paul Tascoe Nurse Practitioner · Boardman, OH NPI 1083581268 Makenzie Sember Family Nurse Practitioner · Boardman, OH NPI 1053246322
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-12.