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DR. CASSANDRA JO HADDOX DO
NPI 1659606929
Emergency Medicine in Saint Louis, MO

Active since October 05, 2009PECOS EnrolledAccepts Medicare Assignment
89.55/100
CMS Quality Rating
3015 N BALLAS RD, DEPT EMERGENCY MED, SAINT LOUIS, MO 63131(314) 966-5000(314) 747-3338 Get Directions Write a Review

NPPES record last updated: May 1, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Cassandra Jo Haddox Do NPPES

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

DR. CASSANDRA JO HADDOX DO (NPI 1659606929) is an individual emergency medicine provider in Saint Louis, Missouri, licensed in Missouri (2009010648) and active in the NPI registry since October 2009. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Mary's Hospital - St Louis, and is a graduate of Kansas City University Of Physicians And Surgeons (2006).

NPPES Registry Identity

NPI1659606929
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. CASSANDRA JO HADDOXCredential: DO
Location Address3015 N BALLAS RD, DEPT EMERGENCY MEDSaint Louis, MO 63131-2329
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 966-5000 · Fax (314) 747-3338
Phone(314) 966-5000
Fax(314) 747-3338
Sole ProprietorNo
Medical School CMSKansas City University Of Physicians And SurgeonsGraduated 2006
Enumeration DateOctober 5, 2009
Last NPPES UpdateMay 1, 2025
✔ NPI 1659606929 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in MO · 2009010648
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
3015 N BALLAS RD, Saint Louis, MO 63131
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Other Identifiers 1

Medicaid207066408MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.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 Jo Haddox 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 ID143376749
PECOS Enrollment IDI20090923000587
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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
90 services89 patients
Electrocardiogram (ecg) 1 to 3 leads with review by physician only 93042
An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. 1 to 3 leads or sensors are placed on your body to capture this data. A physician then reviews the results to evaluate your heart's health.
39 services39 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
26 services26 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
17 services17 patients

Hospital Affiliations CMS Care Compare 4

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

Ssm Health St Mary's Hospital - St Louis

Acute Care Hospitals · Richmond Heights, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260091
Location6420 Clayton RdRichmond Heights, MO 63117 · St. Louis County
Emergency services Birthing friendly

Christian Hospital Northeast

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260180
Location11133 Dunn RoadSaint Louis, MO 63136 · St. Louis County
Emergency services

Barnes-Jewish St Peters Hospital

Acute Care Hospitals · Saint Peters, MO
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260191
Location10 Hospital DrSaint Peters, MO 63376 · St. Charles County
Emergency services

Progress West Hospital

Acute Care Hospitals · O Fallon, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260219
Location2 Progress Point PkwyO Fallon, MO 63368 · St. Charles County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63131 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
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.

89.55/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.45
Improvement Activities40
Cost100

Other Providers at the Same Location NPPES 20

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

MS. ASHLEY FRANCES MARIE PIKE FNP
Nurse Practitioner (Family)
3015 N BALLAS RD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63131
St. Louis County (314) 966-5000
PAUL S PATANE M.D.
Anesthesiology
3015 N BALLAS RD
SAINT LOUIS, MO 63131
St. Louis County (314) 996-5330
MR. BLAIR ANTHONY MALENCH PA
Physician Assistant
3015 N BALLAS RD
SAINT LOUIS, MO 63131
St. Louis County (314) 996-5225
ADNAN MANZOOR MD
Hospitalist
3015 N BALLAS RD
SAINT LOUIS, MO 63131
St. Louis County (314) 996-5772
LAUREN MARIE HECHT RD, LD
Dietitian, Registered
3015 N BALLAS RD
SAINT LOUIS, MO 63131
St. Louis County (573) 579-6375
DR. ALAN P LYSS MD
Internal Medicine (Hematology & Oncology)
3015 N BALLAS RD
SAINT LOUIS, MO 63131
St. Louis County (314) 996-5514
VIRGILIO P DUMADAG MD
Pathology (Anatomic Pathology & Clinical Pathology)
3015 N BALLAS RD, DEPARTMENT OF PATHOLOGY
SAINT LOUIS, MO 63131
St. Louis County (314) 996-4285
STEPHEN R DAVIS M.D.
Anesthesiology
3015 N BALLAS RD
SAINT LOUIS, MO 63131
St. Louis County (314) 996-5330

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 Haddox's NPI number?

The NPI number for Cassandra Haddox is 1659606929. It was assigned to this individual provider in the NPPES registry on October 5, 2009.

Where is Cassandra Haddox located?

Cassandra Haddox practices at 3015 N Ballas Rd Dept Emergency Med, Saint Louis, MO 63131. The listed phone number is (314) 966-5000.

What is Cassandra Haddox's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Cassandra Haddox enrolled in Medicare?

Yes. Cassandra Haddox 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 Haddox accept?

Health plans from Molina Healthcare list Cassandra Haddox 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 Haddox affiliated with any hospitals?

According to CMS data, Cassandra Haddox is affiliated with Ssm Health St Mary's Hospital - St Louis, Christian Hospital Northeast, Barnes-Jewish St Peters Hospital and Progress West Hospital.

When was this NPI record last updated?

The NPPES record for Cassandra Haddox was last updated on May 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.