William D. Ertag, MD P.A.
William D. Ertag, MD P.A. is a healthcare organization registered as Neurology Physician in Naples, FL, holding Type 2 (organization) NPI 1285667907 since 2006. The authorized official on file is Kathleen Zaranek, Office Manager.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1285667907 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | William D. Ertag, MD P.A. |
| Practice address | 720 GOODLETTE RD N, SUITE 204, Naples, FL, 34102 |
| Phone | 2394300800 |
| Fax | 2394300538 |
| Enumeration date | 2006-07-08 |
| Last updated in NPPES | 2020-08-22 |
Authorized official
| Name | Kathleen Zaranek |
|---|---|
| Title | Office Manager |
| Phone | 2394300800 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2084N0400X | Neurology Physician | Primary | ME25371 | FL |
Copy-ready billing details
Provider: William D. Ertag, MD P.A. NPI: 1285667907 Taxonomy: 2084N0400X (Neurology Physician) Address: 720 GOODLETTE RD N, SUITE 204, Naples, FL, 34102
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1285636233 | David Rawlings | Individual | Clinical Neuropsychologist | Naples, FL |
| 1902802606 | Theodore Crowell | Individual | Family Medicine Physician | Naples, FL |
| 1952307662 | Gregory Leach | Individual | Family Medicine Physician | Naples, FL |
| 1689627713 | Joseph Labs | Individual | Surgery of the Hand (Plastic Surgery) Physician | Naples, FL |
| 1619903812 | David B Rawlings Phd PA | Organization | Clinical Neuropsychologist | Naples, FL |
| 1427088871 | Jeffrey J. Mccartney , M.D.PA | Organization | Neurology Physician | Naples, FL |
| 1063625390 | Judith Graser | Individual | Clinical Psychologist | Naples, FL |
| 1033370952 | J Daniel Labs MD PA | Organization | Surgery of the Hand (Plastic Surgery) Physician | Naples, FL |
Verify this record
Cross-check NPI 1285667907 against the authoritative CMS record: view William D. Ertag, MD P.A. 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 type of organization is William D. Ertag, MD P.A.?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.