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WILLIAM L HORVATH MD
NPI 1023015351
Internal Medicine - Hematology & Oncology in Sylvania, OH

Active since July 01, 2005
5308 HARROUN RD, SUITE 055, SYLVANIA, OH 43560(419) 824-6599(419) 885-3870 Get Directions Write a Review

NPPES record last updated: May 1, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William L Horvath Md NPPES

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

WILLIAM L HORVATH MD (NPI 1023015351) is an individual hematology & oncology provider in Sylvania, Ohio, licensed in Ohio (35038120) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1023015351
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameWILLIAM L HORVATHCredential: MD
Location Address5308 HARROUN RD, SUITE 055Sylvania, OH 43560-2114
Mailing Address5308 Harroun Rd, Suite 055Sylvania, OH 43560-2114 · (419) 824-6599 · Fax (419) 885-3870
Phone(419) 824-6599
Fax(419) 885-3870
Sole ProprietorNo
Enumeration DateJuly 1, 2005
Last NPPES UpdateMay 1, 2012
✔ NPI 1023015351 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses✔ Licensed in OH · 35038120✔ Licensed in MI · 4301058940
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
5308 HARROUN RD, Sylvania, OH 43560
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Other Identifiers 6

OtherP00934620OH · Rrmc
OtherH00419406OH · Medicare
Medicare ID-Type UnspecifiedN64970001MI
Medicare UPINA75518
Medicaid0294079OH
Medicare PIN4300581OH

Other Providers at the Same Location NPPES 19

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

CHANG XIA M.D.
Internal Medicine (Hematology & Oncology)
5308 HARROUN RD, SUITE 055
SYLVANIA, OH 43560
Lucas County (419) 824-6599
MELANIE ROSE MILLER CNM
Advanced Practice Midwife
5308 HARROUN RD, SUITE 175
SYLVANIA, OH 43560
Lucas County (419) 824-5608
JOANNA F SHAW CNP
Nurse Practitioner
5308 HARROUN RD, # 155
SYLVANIA, OH 43560
Lucas County (419) 824-6100
JEFFREY H MULER MD
Internal Medicine (Hematology & Oncology)
5308 HARROUN RD, SUITE 055
SYLVANIA, OH 43560
Lucas County (419) 824-6599
PROMEDICA CENTRAL PHYSICIANS
Surgery (Surgical Oncology)
5308 HARROUN RD, SUITE 160
SYLVANIA, OH 43560
Lucas County (419) 824-5668
BONNIE J BRAHANEY CNP
Nurse Practitioner
5308 HARROUN RD, SUITE 055
SYLVANIA, OH 43560
Lucas County (419) 824-6599
PROMEDICA CENTRAL PHYSICIANS LLC
Family Medicine
5308 HARROUN RD, SUITE 170
SYLVANIA, OH 43560
Lucas County (419) 824-1999
PROMEDICA CENTRAL PHYSICIANS
Obstetrics & Gynecology
5308 HARROUN RD, SUITE 175
SYLVANIA, OH 43560
Lucas County (419) 824-5608

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 Horvath's NPI number?

The NPI number for William Horvath is 1023015351. It was assigned to this individual provider in the NPPES registry on July 1, 2005.

Where is William Horvath located?

William Horvath practices at 5308 Harroun Rd Suite 055, Sylvania, OH 43560. The listed phone number is (419) 824-6599.

What is William Horvath's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for William Horvath was last updated on May 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.