Stephen A Ovanessoff, MD
Stephen A Ovanessoff is a Anatomic Pathology Physician provider (Pathology) practicing in Tempe, AZ, registered in the NPPES registry with NPI 1295715050 since 2006. The credential MD stands for Doctor of Medicine. Practices at Laboratory Sciences of Arizona LLC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1295715050 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Stephen A Ovanessoff |
| Credential | MD |
| Sex | Male |
| Practice address | 1255 W WASHINGTON ST, Tempe, AZ, 85281 |
| Phone | 6026855211 |
| Fax | 6238897407 |
| Enumeration date | 2006-01-18 |
| Last updated in NPPES | 2013-08-15 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207ZP0101X | Anatomic Pathology Physician | Primary | 18432 | AZ |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Stephen Ovanessoff, MD NPI: 1295715050 Taxonomy: 207ZP0101X (Anatomic Pathology Physician) Address: 1255 W WASHINGTON ST, Tempe, AZ, 85281
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1861472623 | Louis Rosati | Individual | Anatomic Pathology & Clinical Pathology Physician | Tempe, AZ |
| 1760462527 | Caryll Webner | Individual | Anatomic Pathology & Clinical Pathology Physician | Tempe, AZ |
| 1770563587 | Anthony Burgan | Individual | Anatomic Pathology & Clinical Pathology Physician | Tempe, AZ |
| 1629058474 | Kent Zimmerman | Individual | Anatomic Pathology & Clinical Pathology Physician | Tempe, AZ |
| 1952381378 | Suzanne Cook | Individual | Anatomic Pathology & Clinical Pathology Physician | Tempe, AZ |
| 1497735815 | Puja Verma | Individual | Anatomic Pathology & Clinical Pathology Physician | Tempe, AZ |
| 1154396133 | Mary Fietz | Individual | Anatomic Pathology & Clinical Pathology Physician | Tempe, AZ |
| 1336116763 | Kevin Mccabe | Individual | Anatomic Pathology & Clinical Pathology Physician | Tempe, AZ |
Verify this record
Cross-check NPI 1295715050 against the authoritative CMS record: view Stephen A Ovanessoff 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 specialty is Stephen Ovanessoff?
Is this the official NPI registry?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-08-15.