1. Home
  2. Directory
  3. Georgia
  4. Atlanta
  5. Internal Medicine
  6. NPI Profile

DR. CASSANDRA RIVERS TREADWAY M.D.
NPI 1689894883
Internal Medicine in Atlanta, GA

Active since April 27, 2007PECOS EnrolledAccepts Medicare Assignment
3885 PRINCETON LAKES PARKWAY, SUITE 300, ATLANTA, GA 30331(404) 344-0059 Get Directions Write a Review

NPPES record last updated: January 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Cassandra Rivers Treadway M.d. NPPES

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

DR. CASSANDRA RIVERS TREADWAY M.D. (NPI 1689894883) is an individual internal medicine provider in Atlanta, Georgia, licensed in Georgia (056837) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Wellstar Kennestone Regional Medical Center, and is a graduate of Medical University Of South Carolina College Of Medicine (1999).

NPPES Registry Identity

NPI1689894883
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. CASSANDRA RIVERS TREADWAYCredential: M.D.
Location Address3885 PRINCETON LAKES PARKWAY, SUITE 300Atlanta, GA 30331
Mailing Address2024 Barrington LnVilla Rica, GA 30180-6954 · (678) 983-4190
Phone(404) 344-0059
Sole ProprietorNo
Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 1999
Enumeration DateApril 27, 2007
Last NPPES UpdateJanuary 22, 2020
✔ NPI 1689894883 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in GA · 056837
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3885 PRINCETON LAKES PARKWAY, Atlanta, GA 30331
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Cassandra Rivers Treadway M.d. 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 ID3577581958
PECOS Enrollment IDI20051103000926
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Cassandra Treadway reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Morehouse Medicine Inc.
8.2 mi
Internal Medicine
455 LEE ST SW FL 2
Atlanta, GA 30310
  • Reassigned Medicare billing, Georgia enrollment
  • 73 clinicians in this Medicare group
NPI 1700673571 (404) 752-1000
Morehouse Healthcare, Inc.
12 mi
Cardiovascular Disease
1800 HOWELL MILL RD NW STE 275
Atlanta, GA 30318
  • Reassigned Medicare billing, Georgia enrollment
  • 322 clinicians in this Medicare group
NPI 1801832324 (404) 752-1000
Signify Health Medical Associates, PLLC
715 mi
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Georgia enrollment
  • 488 clinicians in this Medicare group
NPI 1750845863 (972) 715-3800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
106 services60 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
72 services48 patients
Assessment of emotional or behavioral problems 96127
Assessment of emotional or behavioral problems involves a thorough evaluation of your feelings, thoughts, and behaviors. It's a process where professionals study patterns over time to identify potential issues like anxiety, depression, or other mental health conditions.
46 services34 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
31 services31 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
23 services20 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
21 services18 patients

Hospital Affiliations CMS Care Compare 4

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

Wellstar Kennestone Regional Medical Center

Acute Care Hospitals · Marietta, GA
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number110035
Location677 Church StreetMarietta, GA 30060 · Cobb County
Emergency services Birthing friendly

Grady Memorial Hospital

Acute Care Hospitals · Atlanta, GA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110079
Location80 Jesse Hill, Jr Drive SEAtlanta, GA 30303 · Fulton County
Emergency services Birthing friendly

Wellstar Cobb Medical Center

Acute Care Hospitals · Austell, GA
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number110143
Location3950 Austell RdAustell, GA 30106 · Cobb County
Birthing friendly

Wellstar Douglas Medical Center

Acute Care Hospitals · Douglasville, GA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110184
Location8954 Hospital DriveDouglasville, GA 30134 · Douglas County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30331 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
$130.64 typical visit price
range $56.84 – $172.43
Typical copayment $32.66 (range $14.21 – $43.10)
Most-billed visit code 99204
Established Patient
$100.20 typical visit price
range $18.22 – $140.40
Typical copayment $25.05 (range $4.55 – $35.10)
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier11 claims12 services$60.60 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Treadway's NPI number?

The NPI number for Cassandra Treadway is 1689894883. It was assigned to this individual provider in the NPPES registry on April 27, 2007.

Where is Cassandra Treadway located?

Cassandra Treadway practices at 3885 Princeton Lakes Parkway Suite 300, Atlanta, GA 30331. The listed phone number is (404) 344-0059.

What is Cassandra Treadway's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Cassandra Treadway enrolled in Medicare?

Yes. Cassandra Treadway 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.

Which organizations bill Medicare for Cassandra Treadway's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cassandra Treadway reassigns Medicare benefits to 3 organizations: Morehouse Medicine Inc. (Atlanta, GA), Morehouse Healthcare, Inc. (Atlanta, GA) and Signify Health Medical Associates, PLLC (Dallas, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cassandra Treadway's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cassandra Treadway accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 2 other insurers list Cassandra Treadway 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 Treadway affiliated with any hospitals?

According to CMS data, Cassandra Treadway is affiliated with Wellstar Kennestone Regional Medical Center, Grady Memorial Hospital, Wellstar Cobb Medical Center and Wellstar Douglas Medical Center.

When was this NPI record last updated?

The NPPES record for Cassandra Treadway was last updated on January 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.