Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Nathan Michael Weir, M.D., PH.D.
Dermatology Physician in Mason, OH · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1861735912
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Registry record
Entity type Individual (Type 1)
Name Dr. Nathan Michael Weir
Credential M.D., PH.D.
Sex Male
Practice address 5160 Socialville Foster Rd, Mason, OH, 45040
Phone (513) 770-3263
Enumeration date Mar 27, 2013
Last updated in NPPES Dec 21, 2017
Taxonomy & licenses
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 35.130393 (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 |
|---|---|---|---|
| 0249780 | 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.
Frequently asked questions
What is the NPI number for Nathan Weir?
The National Provider Identifier (NPI) for Nathan Weir is 1861735912, a Type 1 (individual) record in the CMS NPPES registry.
Where does Nathan Weir practice?
The practice location on file with NPPES is in Mason, 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 2017-12-21.