Doctor profile · Federal record

Dr. Subramanian Natarajan, MD

Surgery Physician (CMS: General Surgery) · Surgery Physician · Chippewa Falls, WI

  • NPI 1457446767
  • Accepts Medicare
  • MIPS 78.0 / 100 · 2023
  • 29 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2655 County Highway I
Chippewa Falls, WI 547291423
(715) 726-4200
Mailing address
1000 N Oak Ave
Marshfield, WI 544495703

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
June 9, 2023
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
208600000X — NUCC code
State licenses (2)
Wisconsin #43546 · Michigan #4301084671
Medicaid (2)
MI #4703180 · WI #34978000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457446767. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
252
Distinct HCPCS
7
Medicare allowed
$42,164
HCPCS Description Services Patients Avg allowed
45380 Biopsy of large bowel using a flexible endoscope 68 68 $111
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 50 50 $222
99213 Established patient office or other outpatient visit, 20-29 minutes 40 29 $87
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 34 32 $71
99214 Established patient office or other outpatient visit, 30-39 minutes 24 19 $123
99212 Established patient office or other outpatient visit, 10-19 minutes 23 19 $54
36475 Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance 13 12 $1,033

In context: peer comparison

Among 1 peers in Chippewa Falls Surgery Physician, average services per provider: 36. This provider delivers 7.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
165
Patients
151
Total drug cost
$2,585
Drug Type Claims Patients Total cost
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 97 95 $1,750
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 24 22 $75
Omeprazole Generic 22 12 $299
Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 22 22 $462

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Subramanian Natarajan's medical specialty?
Dr. Subramanian Natarajan practices Surgery Physician in Chippewa Falls, WI.
Where does Dr. Subramanian Natarajan practice?
Dr. Subramanian Natarajan practices at 2655 County Highway I, Chippewa Falls, WI 547291423. Office phone: 7157264200.
What is Dr. Subramanian Natarajan's NPI?
Dr. Subramanian Natarajan's National Provider Identifier (NPI) is 1457446767, issued by NPPES.
Does Dr. Subramanian Natarajan accept Medicare assignment?
Yes. Dr. Subramanian Natarajan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Subramanian Natarajan commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.