ANISHA SARAH CHACKO MD
NPI 1437504800
Internal Medicine in Saint Louis, MO
About Anisha Sarah Chacko Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANISHA SARAH CHACKO MD (NPI 1437504800) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2019036850) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Accepted 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
Anisha Sarah Chacko Md 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.
Medicare Billing Reassignment
Medicare enrollment records show Anisha Chacko reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 744 clinicians in this Medicare group
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOMercy Hospital South
Acute Care Hospitals · Saint Louis, MOSsm Health St Mary's Hospital - St Louis
Acute Care Hospitals · Richmond Heights, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63126 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Anisha Chacko's NPI number?
The NPI number for Anisha Chacko is 1437504800. It was assigned to this individual provider in the NPPES registry on May 4, 2016.
Where is Anisha Chacko located?
Anisha Chacko practices at 10024 Watson Rd, Saint Louis, MO 63126. The listed phone number is (314) 919-2500.
What is Anisha Chacko's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Anisha Chacko enrolled in Medicare?
Yes. Anisha Chacko 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 organization bills Medicare for Anisha Chacko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anisha Chacko reassigns Medicare benefits to Mercy Clinic East Communities (Saint Louis, MO). The 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 Anisha Chacko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Anisha Chacko accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Anisha Chacko 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 Anisha Chacko affiliated with any hospitals?
According to CMS data, Anisha Chacko is affiliated with Mercy Hospital St Louis, Mercy Hospital South and Ssm Health St Mary's Hospital - St Louis.
When was this NPI record last updated?
The NPPES record for Anisha Chacko was last updated on December 4, 2019. 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.
# Anisha Sarah Chacko, MD · NPI 1437504800
Internal Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since May 4, 2016.
## Identity
- **NPI:** 1437504800 (Entity type: Individual)
- **Enumerated:** May 4, 2016
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 2019036850 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 10024 WATSON RD, Saint Louis, MO 63126-1829
- **Phone:** (314) 919-2500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Mercy Clinic East Communities (NPI 1720635329, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** December 4, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1437504800) · Data from the CMS NPPES public registry.