Subramanian Natarajan, MD
Surgery Physician · Chippewa Falls, WI
Subramanian Natarajan, MD is a surgery physician with a practice address in Chippewa Falls, Wisconsin, and NPI 1457446767, issued on Oct 3, 2006. Check the license (Wisconsin 43546, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Subramanian Natarajan
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- 43546 WI
4301084671 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2655 County Highway I, Chippewa Falls, WI 54729
- Phone
- (715) 726-4200
- Enumerated
- Oct 3, 2006
- Record last updated
- Jun 9, 2023
- Medicaid IDs
- 4703180 MI
34978000 WI - Medicare enrollment
- Enrolled (PECOS I20080220000605); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 726 in Wisconsin → Look up another NPI →
Also registered at 2655 County Highway I
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jerry Aul, PTPhysical Therapist1851409114
- Melissa Aul, PTPhysical Therapist1942310487
- Dulce Vida Balmadrid, MDPediatrics Physician1083843924
- Kristin Baxter, PTPhysical Therapist1841854536
- Robert Bullwinkel, M.D.Pediatrics Physician1205162112
- Violet Ellington, APN CNPFamily Nurse Practitioner1770947756
Verify Subramanian Natarajan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 43546Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average surgery physician in 2024
233 Medicare Part D claims for 191 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims. 22 claims were for opioids.
Most prescribed
- Gavilyte-G67 claims
- Peg-3350 And Electrolytes61 claims
- Peg 3350-Electrolyte21 claims
- Hydrocodone-Acetaminophen18 claims
- Gavilyte-C13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 82.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mchs Hospitals IncMarshfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Subramanian Natarajan among 726 surgery physician records in Wisconsin
Subramanian Natarajan, MD is one of 726 surgery physician records with a practice address in Wisconsin. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1997 · median 2006 among the 446 with a school on file
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Wisconsin
There are 726 surgery physician records in Wisconsin.
All 726 in Wisconsin → Every provider in Chippewa Falls → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- William McDougall, MDChippewa Falls, WI 547291700996204
- Dax Demaree, D.O.Altoona, WI 547201245695808
- Thomas Herrmann, M.D.Menomonie, WI 547511356385298
- Christopher Johnson, M.D.Menomonie, WI 547511841637634
- Derek Scammell, M.D.Menomonie, WI 547511568498921
- Angela Appel, MDEau Claire, WI 547031073805305
- Jason Beckermann, MDEau Claire, WI 547031558583534
- Rosmeld Castillo, MDEau Claire, WI 547031205320280
Common questions
What is Subramanian Natarajan, MD's NPI number?
Subramanian Natarajan, MD's National Provider Identifier (NPI) is 1457446767, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Subramanian Natarajan, MD located?
The NPPES record lists a practice address at 2655 County Highway I, Chippewa Falls, WI, 54729. Phone: (715) 726-4200. Providers update this record themselves, so call before visiting.
How can I verify Subramanian Natarajan, MD's license?
NPPES lists Wisconsin license number 43546, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Subramanian Natarajan, MD prescribe under Medicare Part D?
In 2024, Subramanian Natarajan, MD had 233 Medicare Part D claims for 191 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Subramanian Natarajan, MD's MIPS final score?
The 2023 MIPS final score is 82.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.