Doctor profile · Federal record

Dr. Ruth Chacko, M.D.

Emergency Medicine Physician · Emergency Medicine Physician · Saint Louis, MO

  • NPI 1093754715
  • 20 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
6420 Clayton RD
Saint Louis, MO 631171811
(314) 768-8000
fax (314) 768-8011
Mailing address
1836 Lackland Hill Pkwy, Attn: Credentialing
Saint Louis, MO 631463572

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
May 26, 2009
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
Missouri #R9305 · Illinois #036060005
Medicaid
MO #1093754715

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1093754715. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
169
Distinct HCPCS
3
Medicare allowed
$28,870
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 94 92 $175
99284 Emergency department visit with moderate level of medical decision making 38 38 $120
99291 Critical care, first 30-74 minutes 37 36 $212

In context: peer comparison

Among 121 peers in Saint Louis Emergency Medicine Physician, average services per provider: 92. This provider delivers 1.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
95
Patients
93
Total drug cost
$600
Drug Type Claims Patients Total cost
Naproxen Generic 22 21 $70
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 22 22 $132
Cyclobenzaprine Hcl Generic 18 18 $96
Ondansetron Hcl Generic 18 17 $89
Cefuroxime (Cefuroxime Axetil) Brand 15 15 $211

Frequently asked questions

Auto-generated from federal data
What is Dr. Ruth Chacko's medical specialty?
Dr. Ruth Chacko practices Emergency Medicine Physician in Saint Louis, MO.
Where does Dr. Ruth Chacko practice?
Dr. Ruth Chacko practices at 6420 Clayton RD, Saint Louis, MO 631171811. Office phone: 3147688000.
What is Dr. Ruth Chacko's NPI?
Dr. Ruth Chacko's National Provider Identifier (NPI) is 1093754715, issued by NPPES.
What procedures does Dr. Ruth Chacko commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.