Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Theodore Petrowski III, O.D.
Optometrist in Durham, NC · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811900806
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Registry record
Entity type Individual (Type 1)
Name John Theodore Petrowski III
Credential O.D.
Sex Male
Practice address 2100 Erwin Rd, Durham, NC, 27710
Phone (919) 684-8111
Enumeration date Aug 14, 2006
Last updated in NPPES Oct 23, 2008
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0RE1567 | Medicaid | VT | - |
| 30003949 | Medicaid | NH | - |
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 John Petrowski?
John Petrowski 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.
Other providers at this practice address
Browse all → David Kirsch Radiation Oncology Physician · Durham, NC NPI 1932181039 Shashi Nagaraj Pediatric Nephrology Physician · Durham, NC NPI 1861476848 Sandesh Dev Cardiovascular Disease Physician · Durham, NC NPI 1033182407 Julie Thacker Colon & Rectal Surgery Physician · Durham, NC NPI 1255304341 Charles Murphy Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Durham, NC NPI 1770546772 Debra Sudan Transplant Surgery Physician · Durham, NC NPI 1902856651 Scott Cousins Ophthalmology Physician · Durham, NC NPI 1023065612 Clare Pipkin Dermatology Physician · Durham, NC NPI 1801843537
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-23.