Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Senthil Nachimuthu, MD

Individual provider Internal Medicine Physician · NPI 1235246018

Senthil Nachimuthu, MD practises Cardiac Electrophysiology in Stillwater, Oklahoma. Qualified in 1996, 30 years ago. Practices with Stillwater Medical Center Authority, a 168-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Louisiana and Oklahoma.

Years since qualifying
30
Licensed in
LA, OK
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1323 W 6th Ave Ste 201
Stillwater, OK 74074-4306
Phone: (405) 533-3010
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3106 Nw Arlington Ave, Lawton, OK 73505-6123 — (580) 250-4278

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence 27598 (OK)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD14431R (LA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 27598 (OK)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 27598 (OK)

Record details

NPI number1235246018
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 25, 2006
Last updated in NPPESJune 3, 2022
Certification dateJune 3, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIAC ELECTROPHYSIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY), INTERVENTIONAL CARDIOLOGY
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Stillwater Medical Center Authority — 168 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Coronary angioplasty and stenting 41 times · 76th percentile
Pacemaker insertion or repair 22 times · 73rd percentile
Leg revascularization (restoring blood flow) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients994
Services billed 3,098 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $838 5 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $478 19 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Integris Health Ponca City Hospital · Ponca City, OK · listed as Integris Health Ponca City Hospital Inc
  • O U Medical Center Hospital · Oklahoma City, OK · listed as Ou Medical Center
  • Stillwater Medical - Perry Hospital · Perry, OK · listed as Stillwater Medical Center Authority
  • Stillwater Medical Center Hospital · Stillwater, OK
  • Stillwater Medical-Blackwell Hospital · Blackwell, OK

Colleagues at Stillwater Medical Center Authority

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 168 clinicians in the practice; 12 are shown here.

Other providers in Stillwater