Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allen J Williams, MD

Emergency Medicine Physician in Toledo, OH · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861427270

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Allen J Williams

Credential MD

Sex Male

Practice address 3000 Arlington Ave, Toledo, OH, 43614

Phone (419) 383-3888

Fax (419) 383-2860

Enumeration date Jul 12, 2006

Last updated in NPPES Jun 4, 2019

Taxonomy & licenses

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 4301407464 (MI) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 35.092911 (OH) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
0845714	Medicaid	OH	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Allen Williams?

The National Provider Identifier (NPI) for Allen Williams is 1861427270, a Type 1 (individual) record in the CMS NPPES registry.

Where does Allen Williams practice?

The practice location on file with NPPES is in Toledo, OH. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-04.