NPI Portal NPI Lookup & Verification

Dr. Cassandra Lee Riddle, DO

Dr. Cassandra Lee Riddle is a Surgery Physician provider (Surgery) practicing in Tulsa, OK, registered in the NPPES registry with NPI 1679074132 since 2018. The credential DO stands for Doctor of Osteopathic Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1679074132
Entity type Individual (Type 1)
Name Dr. Cassandra Lee Riddle
Credential DO
Sex Female
Practice address Tulsa, OK, 74133
Phone 9189307312
Fax 9183073121
Enumeration date 2018-02-21
Last updated in NPPES 2023-12-19

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Primary 6637 OK
207P00000X Emergency Medicine Physician Secondary 6637 OK

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
200874640A Medicaid OK
Copy-ready billing details
Provider: Cassandra Riddle, DO
NPI: 1679074132
Taxonomy: 208600000X (Surgery Physician)
Address: Tulsa, OK, 74133

Other providers at this practice address

NPI Name Type Specialty Location
1922085216 Samuel Pangburn Individual Surgery Physician Tulsa, OK
1851431316 Steven Feher Individual Surgery Physician Tulsa, OK
1891313169 Georgina Mishkin Individual Physician Assistant Tulsa, OK

Verify this record

Cross-check NPI 1679074132 against the authoritative CMS record: view Dr. Cassandra Lee Riddle 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 Cassandra Riddle?
The National Provider Identifier (NPI) for Cassandra Riddle is 1679074132, a Type 1 (individual) record in the CMS NPPES registry.
Where does Cassandra Riddle practice?
The practice location on file with NPPES is in Tulsa, OK. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-12-19.