Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Adam T Mierzwa, MD

Neurology Physician in Toledo, OH · enumerated 2020.

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

National Provider Identifier

1811525272

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Registry record

Entity type Individual (Type 1)

Name Adam T Mierzwa

Credential MD

Sex Male

Practice address 2130 W Central Ave, Toledo, OH, 43606

Phone (419) 291-7623

Enumeration date Mar 31, 2020

Last updated in NPPES Jan 8, 2025

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 35.146520 (OH) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 35.146520 (OH) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Adam Mierzwa?

Adam Mierzwa is registered in NPPES with the primary taxonomy of Neurology 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.

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Brandon Gabel Neurological Surgery Physician · Toledo, OH NPI 1609173624 Monica Hajjar Physician Assistant · Toledo, OH NPI 1578029831 Clayton Buback Neurology Physician · Toledo, OH NPI 1598228231 Jamie Budd Family Nurse Practitioner · Toledo, OH NPI 1356975759 Nikki Artiaga Clinical Social Worker · Toledo, OH NPI 1528678984 Sulafa Saffarini Student in an Organized Health Care Education/Training Program · Toledo, OH NPI 1982271938 Bassam Yaghmoor Student in an Organized Health Care Education/Training Program · Toledo, OH NPI 1093446213 Zainab Zahra Student in an Organized Health Care Education/Training Program · Toledo, OH NPI 1982330692

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-08.