Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Michael Blumenthal
Optician in Medina, OH · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811694839
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Registry record
Entity type Individual (Type 1)
Name Michael Blumenthal
Sex Male
Practice address 4141 Pearl Rd, Medina, OH, 44256
Phone (330) 723-0234
Fax (330) 723-1608
Enumeration date Feb 9, 2023
Last updated in NPPES Feb 9, 2023
Taxonomy & licenses
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
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.
What specialty is Michael Blumenthal?
Michael Blumenthal is registered in NPPES with the primary taxonomy of Optician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-09.