Portnoy and Tu DDS PC
Portnoy and Tu DDS PC is a healthcare organization registered as General Practice Dentistry in Okemos, MI, holding Type 2 (organization) NPI 1316952732 since 2006. The authorized official on file is Gianh Portnoy, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1316952732 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Portnoy and Tu DDS PC |
| Practice address | 1738 HAMILTON RD, Okemos, MI, 48864 |
| Phone | 5173493266 |
| Fax | 5173812457 |
| Enumeration date | 2006-07-31 |
| Last updated in NPPES | 2020-08-22 |
Authorized official
| Name | Gianh Portnoy |
|---|---|
| Title | President |
| Phone | 5173493266 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Secondary | 2901018350 | MI |
| 1223G0001X | General Practice Dentistry | Primary | 2901018167 | MI |
Copy-ready billing details
Provider: Portnoy and Tu DDS PC NPI: 1316952732 Taxonomy: 1223G0001X (General Practice Dentistry) Address: 1738 HAMILTON RD, Okemos, MI, 48864
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1336363993 | Gianh Portnoy | Individual | General Practice Dentistry | Okemos, MI |
| 1427763119 | Okemos Smile Center of Michigan Pllc | Organization | Dental Clinic/Center | Okemos, MI |
Verify this record
Cross-check NPI 1316952732 against the authoritative CMS record: view Portnoy and Tu DDS PC on the official NPPES registry .
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 or validate an NPI number.
Frequently asked questions
What is the NPI number for Portnoy and Tu DDS PC?
Who is the authorized official for Portnoy and Tu DDS PC?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.