NPI Portal NPI Lookup & Verification

James R Ouellette, DO

James R Ouellette is a Surgical Oncology Physician provider (Surgery) practicing in Centerville, OH, registered in the NPPES registry with NPI 1245288422 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.

✓ Active NPI ✓ Valid NPI checksum

NPI 1245288422
Entity type Individual (Type 1)
Name James R Ouellette
Credential DO
Sex Male
Practice address 2300 MIAMI VALLEY DR, SUITE 350, Centerville, OH, 45459
Phone 9374242469
Fax 9374242479
Enumeration date 2006-05-04
Last updated in NPPES 2018-08-01

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Secondary 34007386 OH
2086X0206X Surgical Oncology Physician Primary 340073869 OH

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
2192550 Medicaid OH
Copy-ready billing details
Provider: James Ouellette, DO
NPI: 1245288422
Taxonomy: 2086X0206X (Surgical Oncology Physician)
Address: 2300 MIAMI VALLEY DR, SUITE 350, Centerville, OH, 45459

Other providers at this practice address

NPI Name Type Specialty Location
1972569218 William Nahhas Individual Gynecologic Oncology Physician Centerville, OH
1790028157 Compunet Clinical Laboratories, LLC Organization Clinical Medical Laboratory Centerville, OH
1104250430 Fidelity Health Care Inc Organization Prosthetic/Orthotic Supplier Centerville, OH
1528780335 Heather Miles Individual Nurse Practitioner Centerville, OH

Verify this record

Cross-check NPI 1245288422 against the authoritative CMS record: view James R Ouellette 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 James Ouellette?
James Ouellette is registered in NPPES with the primary taxonomy of Surgical Oncology Physician. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2018-08-01.