Dr. Sonia M. Chacko, MD
- Medicare services, 2024
- 799
- Medicare patients, 2024
- 252
- Part D claims, 2024
- 14,539
- Hospital affiliations
- 7
- Industry payments
- $4,013
- Practice address
- 1001 S Kirkwood Rd, Kirkwood, MO 63122
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Clinic Ibd and Gastroenterology Center Kirkwood - HOPD
Acute Care Hospital outpatient department · Kirkwood, Missouri
Find Dr. Chacko's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Sonia M. Chacko is an internist in Saint Louis, Missouri
Dr. Chacko practices at Mercy Clinic Ibd and Gastroenterology Center Kirkwood - HOPD in Kirkwood, Missouri.
Dr. Chacko's NPI, 1497951008, was assigned on June 22, 2007. Dr. Chacko holds Missouri license 2010031163.
- NPI
- 1497951008NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153447917
- NPI enumeration date
- June 22, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sonia M. Chacko practices at Mercy Clinic Ibd and Gastroenterology Center Kirkwood - HOPD in Kirkwood, Missouri
Dr. Chacko's primary practice is Mercy Clinic Ibd and Gastroenterology Center Kirkwood - HOPD, at 1001 S Kirkwood Rd, Kirkwood, MO 63122.
- Mercy Clinic Ibd and Gastroenterology Center Kirkwood - HOPD1001 S Kirkwood Rd, Kirkwood, MO 63122
Source: Dmand AI Affiliation Data
Dr. Sonia M. Chacko is affiliated with 12 sites of care and 1 medical group
Dr. Chacko's primary practice is Mercy Clinic Ibd and Gastroenterology Center Kirkwood - HOPD in Kirkwood, Missouri. Dr. Chacko is also affiliated with Barnes-Jewish Hospital. The medical group on file is Mercy Clinic East Communities. Dmand AI also links Dr. Chacko to 6 more hospitals, 2 home health agencies, 1 group practice or clinic and 1 hospital outpatient department, each named with a free account. Dr. Chacko's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sonia M. Chacko's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chacko practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Clinic Ibd and Gastroenterology Center Kirkwood - HOPD | Available with a free account |
| +11 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sonia M. Chacko is one of 2,114 internists in Missouri
Internal medicine is Dr. Chacko's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chacko is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Dr. Chacko
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Sonia M. Chacko billed Medicare for 799 services in 2024
CMS data shows 799 Medicare services from Dr. Chacko across 13 procedure codes in 2024, for 252 Medicare patients. Medicare paid $70,433 for them. Every service was in an office.
Dr. Chacko's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3722024: 4008%
- Other services
- 2023: 1922024: 26940%
- Tests and treatments
- 2023: 552024: 10184%
- Lab and pathology
- 2023: 602024: 2952%
Dr. Chacko compared with the Missouri median for internists, 2024
- Dr. Chacko
- Missouri median
- Medicare services
- 799vs 53051% above
- Medicare patients
- 252vs 21119% above
- Part D claims
- 13,675vs 32542.1 times
Medians across 2,076 internists in Missouri with Dmand AI profiles that report each measure.
Dr. Chacko's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chacko and other internists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sonia M. Chacko treated 252 Medicare patients in 2024, average age 73
CMS counts 252 Medicare patients who saw Dr. Chacko in 2024. The largest group is 65 to 74, with 141 patients. 75% of them have high cholesterol, and 72% have high blood pressure. Their average risk score is 1.18, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chacko's median patient age at 72, with 69% women.
Dr. Chacko's Medicare patients by age, 2024
Dr. Chacko's Medicare patients by sex, 2024
- Women16465%
- Men8835%
Chronic conditions among Dr. Chacko's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis45%
- Anxiety32%
- Ischemic heart disease32%
- Mood disorders29%
- Depression28%
- Chronic kidney disease27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chacko's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women69%
- Men31%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sonia M. Chacko wrote 14,539 Medicare Part D claims in 2024
In 2024, Dr. Chacko wrote 14,539 Medicare Part D claims for 1,012 patients. 91% of them were for generic drugs. CMS names the drug for 13,675 of them, across 165 drugs with 11 or more claims each, at $664,364 in total drug cost. In 2023, CMS named 13,351 claims across 162 drugs.
Dr. Chacko's Part D claims by kind of drug, 2024
- Generic13,177 claims91%
- Brand-name1,302 claims9%
- Other60 claims0%
Dr. Chacko's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chacko's Part D claims, 2024
- Opioids5%710 of 14,539 claims
- Antibiotics1%161 of 14,539 claims
- Antipsychotics, patients 65 and over0%62 of 14,539 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 13,3512024: 13,6752%
Drugs named by CMS: 165 in 2024, 162 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Sonia M. Chacko offers telehealth to Medicare patients
Dr. Chacko accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chacko as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Sonia M. Chacko received $4,013 in industry payments from 2019 to 2025
CMS Open Payments shows 228 general payments to Dr. Chacko from 27 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $855.
General payments to Dr. Chacko by program year, 2019 to 2025
Companies that paid Dr. Chacko the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sonia M. Chacko's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Sonia M. Chacko
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Sonia M. Chacko's NPI number?
Dr. Sonia M. Chacko's NPI number is 1497951008. It was assigned on June 22, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Sonia M. Chacko?
Dr. Sonia M. Chacko is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Sonia M. Chacko practice?
Dr. Chacko practices at 1001 S Kirkwood Rd, Kirkwood, MO 63122. Dr. Chacko's primary practice is Mercy Clinic Ibd and Gastroenterology Center Kirkwood - HOPD in Kirkwood, Missouri. Dmand AI also links Dr. Chacko to 6 hospitals, 2 home health agencies, 1 group practice or clinic and 1 hospital outpatient department.
What is Dr. Sonia M. Chacko's medical license number?
Dr. Chacko holds Missouri license 2010031163.
Which hospitals is Dr. Sonia M. Chacko affiliated with?
Dr. Chacko is affiliated with Barnes-Jewish Hospital. Dmand AI links Dr. Chacko to 6 more hospitals.
What medical group is Dr. Sonia M. Chacko part of?
Dr. Chacko is linked to Mercy Clinic East Communities.
Does Dr. Sonia M. Chacko accept Medicare?
Yes. CMS data shows Dr. Chacko billed Medicare for 799 services in 2024, and Dr. Chacko accepts Medicare assignment.
Does Dr. Sonia M. Chacko offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chacko as offering telehealth services.
How many Medicare patients does Dr. Sonia M. Chacko see?
CMS counts 252 Medicare patients who saw Dr. Chacko in 2024, with an average age of 73.
What services does Dr. Sonia M. Chacko bill to Medicare?
In 2024, Dr. Chacko's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G0008).
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What drugs does Dr. Sonia M. Chacko prescribe most?
In 2024 Medicare Part D data, Dr. Chacko's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Omeprazole.
Has Dr. Sonia M. Chacko received payments from drug or device companies?
CMS Open Payments shows $4,013 in general payments to Dr. Chacko from 27 companies from 2019 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Sonia M. Chacko been practicing?
Dr. Chacko graduated from medical school in 1999, 27 years ago.
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