Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Stephanie Liang, OD
Optometrist in Somerville, MA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1306594056
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Registry record
Entity type Individual (Type 1)
Name Dr. Stephanie Liang
Credential OD
Sex Female
Practice address 353 Assembly Row Unit 811, Somerville, MA, 02145
Phone (617) 744-4761
Enumeration date Mar 11, 2022
Last updated in NPPES Jun 16, 2022
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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.
Frequently asked questions
What specialty is Stephanie Liang?
Stephanie Liang is registered in NPPES with the primary taxonomy of Optometrist. 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-16.