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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WILLIAM P BLOCKER M.D.
NPI 1568459105
Internal Medicine - Rheumatology in Canton, OH

Active since September 29, 2005
4160 HOLIDAY ST NW, CANTON, OH 44718(330) 492-4966(330) 492-9344 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William P Blocker M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM P BLOCKER M.D. (NPI 1568459105) is an individual rheumatology provider in Canton, Ohio, licensed in Ohio (35039485B) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1568459105
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. WILLIAM P BLOCKERCredential: M.D.
Location Address4160 HOLIDAY ST NWCanton, OH 44718-2532
Mailing Address4160 Holiday St NwCanton, OH 44718-2532 · (330) 492-4966 · Fax (330) 492-9344
Phone(330) 492-4966
Fax(330) 492-9344
Sole ProprietorNo
Enumeration DateSeptember 29, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1568459105 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in OH · 35039485B
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
4160 HOLIDAY ST NW, Canton, OH 44718
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Other Identifiers 1

Medicaid0606419OH

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ADVANCED CARDIOVASCULAR CENTER, INC
Internal Medicine (Cardiovascular Disease)
4160 HOLIDAY ST NW
CANTON, OH 44718
Stark County (330) 491-8000
RAFAEL E ARSUAGA M.D.
Internal Medicine (Rheumatology)
4160 HOLIDAY ST NW
CANTON, OH 44718
Stark County (330) 492-4966
ARTHRITIS CLINIC OF STARK COUNTY INC.
Internal Medicine (Rheumatology)
4160 HOLIDAY ST NW
CANTON, OH 44718
Stark County (330) 492-4966
DR. ACHAL M. VAIDYA M.D.
Internal Medicine (Rheumatology)
4160 HOLIDAY ST NW
CANTON, OH 44718
Stark County (330) 492-4966
JOYCE ANN WILLIAMS D.O.
Internal Medicine (Rheumatology)
4160 HOLIDAY ST NW
CANTON, OH 44718
Stark County (330) 492-1747
DR. AMJAD IQBAL M.D.
Internal Medicine (Cardiovascular Disease)
4160 HOLIDAY ST NW
CANTON, OH 44718
Stark County (330) 491-8000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Blocker's NPI number?

The NPI number for William Blocker is 1568459105. It was assigned to this individual provider in the NPPES registry on September 29, 2005.

Where is William Blocker located?

William Blocker practices at 4160 Holiday St NW, Canton, OH 44718. The listed phone number is (330) 492-4966.

What is William Blocker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

When was this NPI record last updated?

The NPPES record for William Blocker was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.