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Dr. Calvin Zhao & Associates, Durham, P.A.

General Practice Dentistry in Durham, NC · enumerated 2006 · authorized official Rachel Nittinger, Manager, Credentialing.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1689644163

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Registry record

Entity type Organization (Type 2)
Legal business name Dr. Calvin Zhao & Associates, Durham, P.A.
Parent organization Dental One Partners, Inc
Practice address 3600 North Duke Street, Durham, NC, 27704
Phone (919) 471-3315
Fax (216) 584-1105
Enumeration date Jan 25, 2006
Last updated in NPPES Dec 19, 2017

Taxonomy & classification

122300000X Dentist Dental Providers Secondary
1223E0200X Endodontics Dental Providers Secondary
1223G0001X General Practice Dentistry Dental Providers Primary
1223P0221X Pediatric Dentistry Dental Providers Secondary
1223P0300X Periodontics Dental Providers Secondary
1223P0700X Prosthodontics Dental Providers Secondary
1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers Secondary

Authorized official

Name Rachel Nittinger
Title Manager, Credentialing
Phone (972) 755-0816

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.

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Frequently asked questions

What type of organization is Dr. Calvin Zhao & Associates, Durham, P.A.?
Dr. Calvin Zhao & Associates, Durham, P.A. is registered in NPPES as a General Practice Dentistry (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-19.