Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Ashwin Krishnan Thiagarajasubramanian, MD

Individual provider Cardiovascular Disease Physician · NPI 1134562879

Dr. Ashwin Krishnan Thiagarajasubramanian, MD is registered under Cardiovascular Disease (Cardiology) in Phoenixville, Pennsylvania. Graduated from Ohio State University College of Medicine in 2013, 13 years ago. Practices with Reading Hospital, a 176-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
13
Trained at
Ohio State University College of Medicine
Licensed in
PA
In the registry since
2013
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

824 Main St Ste 306
Phoenixville, PA 19460-4478
Phone: (610) 983-1941
Fax: (610) 983-1945
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 4201 Saint Antoine St, Detroit, MI 48201-2153 — (313) 745-4525
  • 530 South St, Greensburg, PA 15601-2775 — (724) 689-1354

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence MD466255 (PA)

Record details

NPI number1134562879
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 11, 2013
Last updated in NPPESAugust 13, 2025
Certification dateAugust 13, 2025

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Reading Hospital — 176 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients344
Services billed 686 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Food and Beverage $117 3 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.

Colleagues at Reading Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 176 clinicians in the practice; 12 are shown here.

Other providers in Phoenixville