Doctor profile · Federal record

Dr. Challa Ajit, MD

Gastroenterology Physician (CMS: Gastroenterology) · Springfield, OH

  • NPI 1598778805
  • Accepts Medicare
  • 35 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2355 Derr RD
Springfield, OH 455032433
(937) 629-0100
fax (937) 629-3285

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
April 18, 2024
Year of graduation
1991 — 35 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Ohio #35.082392
Medicaid
OH #2388269

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598778805. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
592
Distinct HCPCS
10
Medicare allowed
$84,269
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 102 90 $86
99214 Established patient office or other outpatient visit, 30-39 minutes 94 79 $121
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 79 77 $113
45380 Biopsy of large bowel using a flexible endoscope 63 61 $105
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 62 61 $247
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 53 27 $78
99204 New patient office or other outpatient visit, 45-59 minutes 36 36 $162
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 31 31 $128
91110 Imaging of digestive tract done from the inside of the digestive tract 19 19 $644
99203 New patient office or other outpatient visit, 30-44 minutes 19 19 $109

In context: peer comparison

Among 3 peers in this city , average services per provider: 44. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,494
Transactions
122
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 35 $681.05
Janssen Biotech, Inc. 15 $441.37
Salix Pharmaceuticals, a division of Bausch Health US, LLC 16 $221.37
Takeda Pharmaceuticals U.S.A., Inc. 11 $186.20
QOL Medical, LLC 7 $184.94
Gilead Sciences, Inc. 6 $105.77
GENZYME CORPORATION 5 $100.35
Phathom Pharmaceuticals, Inc. 5 $96.53
Merck Sharp & Dohme LLC 6 $96.38
Ardelyx, Inc. 4 $83.61
PFIZER INC. 3 $67.83
IRONWOOD PHARMACEUTICALS, INC 3 $42.89
Celltrion USA Inc. 2 $36.48
EVOKE PHARMA, INC. 2 $29.52
Ipsen Biopharmaceuticals, Inc 2 $29.26

By nature of payment

Food and Beverage
$2,458
Education
$36

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,524
Patients
737
Total drug cost
$253,176
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 467 179 $9,526
Omeprazole Generic 152 47 $2,871
Famotidine Generic 151 56 $2,717
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 147 145 $2,305
Dicyclomine Hcl Generic 99 34 $2,795
Linzess (Linaclotide) Brand 85 27 $78,486
Ondansetron Hcl Generic 62 22 $2,105
Ondansetron Odt (Ondansetron) Brand 62 53 $1,237
Sucralfate Generic 57 26 $4,409
Esomeprazole Magnesium Generic 50 17 $7,090

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Challa Ajit's medical specialty?
Dr. Challa Ajit practices Gastroenterology Physician in Springfield, OH.
Where does Dr. Challa Ajit practice?
Dr. Challa Ajit practices at 2355 Derr RD, Springfield, OH 455032433. Office phone: 9376290100.
What is Dr. Challa Ajit's NPI?
Dr. Challa Ajit's National Provider Identifier (NPI) is 1598778805, issued by NPPES.
Does Dr. Challa Ajit accept Medicare assignment?
Yes. Dr. Challa Ajit accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Challa Ajit commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.