Doctor profile · Federal record

Dr. Srinivas Kalala, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Waterloo, IA

  • NPI 1619140910
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1015 S Hackett RD
Waterloo, IA 507013500
(319) 234-5990
fax (319) 234-5994
Mailing address
Po Box 2758
Waterloo, IA 507042758

Credentials & registration

NPPES · NUCC
NPI registered
April 2008 — 18 yrs on file
Profile last updated
May 28, 2024
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Iowa #MD-37733

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619140910. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,013
Distinct HCPCS
10
Medicare allowed
$138,533
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 247 245 $229
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 163 157 $77
43249 Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 99 97 $134
99212 Established patient office or other outpatient visit, 10-19 minutes 69 56 $52
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 62 62 $163
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 61 60 $121
45380 Biopsy of large bowel using a flexible endoscope 56 56 $135
99203 New patient office or other outpatient visit, 30-44 minutes 54 54 $103
76705 Limited ultrasound scan of abdomen 47 29 $55
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito 41 41 $5

In context: peer comparison

Among 3 peers in Waterloo Gastroenterology Physician, average services per provider: 56. This provider delivers 18× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
748
Patients
430
Total drug cost
$70,677
Drug Type Claims Patients Total cost
Omeprazole Generic 236 83 $2,410
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) Brand 145 145 $11,768
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 90 88 $2,338
Pantoprazole Sodium Generic 69 30 $810
Cholestyramine (Cholestyramine (With Sugar)) Brand 34 11 $2,432
Suprep (Sodium, Potassium,Mag Sulfates) Brand 25 24 $2,880
Azathioprine Generic 22 0 $893
Lansoprazole Generic 22 0 $195
Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) Brand 18 18 $3,091
Lactulose Generic 18 0 $200

Frequently asked questions

Auto-generated from federal data
What is Dr. Srinivas Kalala's medical specialty?
Dr. Srinivas Kalala practices Gastroenterology Physician in Waterloo, IA.
Where does Dr. Srinivas Kalala practice?
Dr. Srinivas Kalala practices at 1015 S Hackett RD, Waterloo, IA 507013500. Office phone: 3192345990.
What is Dr. Srinivas Kalala's NPI?
Dr. Srinivas Kalala's National Provider Identifier (NPI) is 1619140910, issued by NPPES.
Does Dr. Srinivas Kalala accept Medicare assignment?
Dr. Srinivas Kalala does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Srinivas Kalala commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm (HCPCS 43249). Source: CMS Medicare Physician & Other Practitioners file.