Primary practice
The Endoscopy and Surgery Center of Topeka
Surgery Center - Medicare-Certified · Topeka, Kansas
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Dr. Challa practices at The Endoscopy and Surgery Center of Topeka in Topeka, Kansas.
Dr. Challa's NPI, 1144291733, was assigned on January 31, 2006. Dr. Challa holds Kansas license 0421714.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Challa's primary practice is The Endoscopy and Surgery Center of Topeka, at 2200 Sw 6th Ave Suite 103, Topeka, KS 66606. The practice phone is (785) 354-1254.
Source: Dmand AI Affiliation Data
Dr. Challa's primary practice is The Endoscopy and Surgery Center of Topeka in Topeka, Kansas. Dr. Challa is also affiliated with The University of Kansas Health System St. Francis Campus. The medical group on file is Kansas Medical Clinic, PA. Dmand AI also links Dr. Challa to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Challa practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Endoscopy and Surgery Center of Topeka | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Gastroenterology is Dr. Challa's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Challa is licensed in Kansas.
Counts of gastroenterologists 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
CMS data shows 1,342 Medicare services from Dr. Challa across 16 procedure codes in 2024, for 934 Medicare patients. Medicare paid $155,888 for them.
Medians across 90 gastroenterologists in Kansas with Dmand AI profiles that report each measure.
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
CMS counts 934 Medicare patients who saw Dr. Challa in 2024. The largest group is 65 to 74, with 543 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Challa's median patient age at 67, with 55% women.
Share of Medicare patients with each condition. A patient can have several.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 67
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
In 2024, Dr. Challa wrote 327 Medicare Part D claims for 185 patients. 94% of them were for generic drugs. CMS names the drug for 256 of them, across 4 drugs with 11 or more claims each, at $3,790 in total drug cost. In 2023, CMS named 280 claims across 4 drugs.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Drugs named by CMS: 4 in 2024, 4 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
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Challa for performance year 2024, reported as part of a group. Dr. Challa accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 420 procedures of colonoscopy by Dr. Challa, more than 99% of the clinicians it reports for that procedure.
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dmand AI links Dr. Challa to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Esophageal and Gastric Varices, Non-alcoholic Fatty Liver Disease and Fatty Liver.
Conditions in Dr. Challa's trials
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
CMS Open Payments shows 203 general payments to Dr. Challa from 38 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 51% of the total. Medtronic, Inc. paid the most, $2,683. It also lists 2 research payments totaling $21,300 in 2022.
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
| 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 DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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
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Dr. Shekhar K. Challa's NPI number is 1144291733. It was assigned on January 31, 2006, and it is active in the NPI Registry.
Dr. Shekhar K. Challa is a gastroenterologist in Topeka, Kansas. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Dr. Challa practices at 2200 Sw 6th Ave Suite 103, Topeka, KS 66606. Dr. Challa's primary practice is The Endoscopy and Surgery Center of Topeka in Topeka, Kansas. Dmand AI also links Dr. Challa to 1 hospital and 1 group practice or clinic.
The practice phone on file for Dr. Challa is (785) 354-1254.
Dr. Challa holds Kansas license 0421714.
Dr. Challa is affiliated with The University of Kansas Health System St. Francis Campus. Dmand AI links Dr. Challa to 1 more hospital.
Dr. Challa is linked to Kansas Medical Clinic, PA.
Yes. CMS data shows Dr. Challa billed Medicare for 1,342 services in 2024, and Dr. Challa accepts Medicare assignment.
Dr. Challa's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
CMS counts 934 Medicare patients who saw Dr. Challa in 2024, with an average age of 72.
In 2024, Dr. Challa's most billed Medicare services were surgery: digestive system (43239), surgery: digestive system (45385) and surgery: digestive system (45378).
In 2024 Medicare Part D data, Dr. Challa's most prescribed drugs by claims were Pantoprazole Sodium, Erythromycin and Dicyclomine HCl.
CMS Open Payments shows $6,536 in general payments to Dr. Challa from 38 companies from 2016 to 2025. The largest total came from Medtronic, Inc.
Dr. Challa graduated from medical school in 1978, 48 years ago.
Dr. Challa has worked on 2 clinical trials.
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