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DR. CASSANDRA LEE RIDDLE DO
NPI 1679074132
Surgery in Tulsa, OK

Active since February 21, 2018PECOS EnrolledAccepts Medicare Assignment
79.39/100
CMS Quality Rating
10505 E 91ST ST STE 203, TULSA, OK 74133(918) 930-7312(918) 307-3121 Get Directions Write a Review

NPPES record last updated: December 19, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 13, 2023, Jul 19, 2021, Feb 21, 2018 (3 updates tracked since 2018).

About Dr. Cassandra Lee Riddle Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CASSANDRA LEE RIDDLE DO (NPI 1679074132) is an individual surgery provider in Tulsa, Oklahoma, licensed in Oklahoma (6637) and active in the NPI registry since February 2018. She is enrolled in Medicare PECOS, is affiliated with Saint Francis Hospital, Inc, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1679074132
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameDR. CASSANDRA LEE RIDDLECredential: DO
Location Address10505 E 91ST ST STE 203Tulsa, OK 74133-5829
Mailing Address6600 S Yale Ave Ste 1400Tulsa, OK 74136-3331 · (888) 247-0125 · Fax (918) 502-8210
Phone(918) 930-7312
Fax(918) 307-3121
Sole ProprietorYes
Medical School CMSOtherGraduated 2018
Enumeration DateFebruary 21, 2018
Last NPPES UpdateDecember 19, 20233 updates tracked since enumeration
NPPES CertifiedDecember 19, 2023
✔ NPI 1679074132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in OK · 6637
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedEmergency MedicineTaxonomy 207P00000X · License 6637 (OK)
10505 E 91ST ST STE 203, Tulsa, OK 74133
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Other Names 1

Former Name (1)Dr. Cassandra Lee Czarnetzke Do

Other Identifiers 1

Medicaid200874640AOK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, CommunityCare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Cassandra Lee Riddle Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911318332
PECOS Enrollment IDI20201116001351
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
26 services26 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
18 services18 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
16 services16 patients
Removal of gallbladder with x-ray study of bile ducts using an endoscope 47563
This procedure, known as an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible camera (endoscope) to examine your bile ducts. If gallstones are found, your gallbladder may be removed in a separate procedure. This helps prevent future complications.
12 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Francis Hospital, Inc

Acute Care Hospitals · Tulsa, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370091
Location6161 South YaleTulsa, OK 74136 · Tulsa County
Emergency services Birthing friendly

Saint Francis Hospital South, LLC

Acute Care Hospitals · Tulsa, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370218
Location10501 East 91st Street SouthTulsa, OK 74133 · Tulsa County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 74133 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.46 typical visit price
range $53.00 – $162.61
Typical copayment $20.61 (range $13.25 – $40.65)
Most-billed visit code 99203
Established Patient
$66.48 typical visit price
range $16.68 – $132.40
Typical copayment $16.62 (range $4.17 – $33.10)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality77.76
Promoting Interoperability99
Improvement Activities40
Cost54.37

Patient Reviews User submitted

Reviews are submitted by site visitors and approved by a human moderator before publication.

Review by Crystal March 2, 2025

5/5
Dr. Riddle is an AMAZING surgeon! 10/10. I would recommend any friend & especially family members to her. There were ZERO complications during surgery & ZERO complications post op for my daughter. (From a nurse of 20 yrs that pays attention to everything)
Provider 5/5 Office Staff 3/5
Visited this provider? Share your experience.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STEVEN ANTHONY FEHER M.D.
Surgery
10505 E 91ST ST STE 203
TULSA, OK 74133
Tulsa County (918) 307-3120
GEORGINA MISHKIN PA-C
Physician Assistant
10505 E 91ST ST STE 203
TULSA, OK 74133
Tulsa County (918) 307-3120
DR. SAMUEL JAY PANGBURN DO
Surgery
10505 E 91ST ST STE 203
TULSA, OK 74133
Tulsa County (918) 307-3120

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cassandra Riddle's NPI number?

The NPI number for Cassandra Riddle is 1679074132. It was assigned to this individual provider in the NPPES registry on February 21, 2018. The provider is also known as Dr. Cassandra Lee Czarnetzke Do.

Where is Cassandra Riddle located?

Cassandra Riddle practices at 10505 E 91st St Ste 203, Tulsa, OK 74133. The listed phone number is (918) 930-7312.

What is Cassandra Riddle's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Cassandra Riddle enrolled in Medicare?

Yes. Cassandra Riddle is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Cassandra Riddle accept?

Health plans from Blue Cross and Blue Shield of Oklahoma and CommunityCare list Cassandra Riddle as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Cassandra Riddle affiliated with any hospitals?

According to CMS data, Cassandra Riddle is affiliated with Saint Francis Hospital, Inc and Saint Francis Hospital South, LLC.

When was this NPI record last updated?

The NPPES record for Cassandra Riddle was last updated on December 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.