DR. ASHWIN KRISHNAN THIAGARAJASUBRAMANIAN M.D.
NPI 1134562879
Internal Medicine - Cardiovascular Disease in Phoenixville, PA
NPI Status: Active since April 11, 2013
Contact Information
824 MAIN ST STE 306
PHOENIXVILLE, PA
ZIP 19460
Phone: (610) 983-1941
Fax: (610) 983-1945
- Individual
- Male
- Years of Experience 13
- Internal Medicine
- Cardiovascular Disease
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About ASHWIN THIAGARAJASUBRAMANIAN
This page provides the complete NPI Profile along with additional information for Ashwin Thiagarajasubramanian, an internist established in Phoenixville, Pennsylvania with a medical specialization in Internal Medicine, focusing in cardiovascular disease and more than 13 years of experience. He graduated from Ohio State University College Of Medicine in 2013. The healthcare provider is registered in the NPI registry with number 1134562879 assigned on April 2013. The practitioner's primary taxonomy code is 207RC0000X with license number MD466255 (PA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1134562879
- Provider Name
- DR. ASHWIN KRISHNAN THIAGARAJASUBRAMANIAN M.D.
- Other Name Type
- Professional Name (2)
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 824 MAIN ST STE 306 PHOENIXVILLE, PA 19460
- Location Phone
- (610) 983-1941
- Location Fax
- (610) 983-1945
- Mailing Address
- PO BOX 13579 READING, PA 19612
- Mailing Phone
- (484) 628-1324
- Medical School Name
- OHIO STATE UNIVERSITY COLLEGE OF MEDICINE
- Graduation Year
- 2013
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-11-2013
- Last Update Date
- 08-13-2025
- Code Navigator
An internist like Ashwin Thiagarajasubramanian is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Secondary Locations
- 530 South St
Greensburg, PA 15601
(724) 689-1354 - 4201 Saint Antoine St UHC-2E
Detroit, MI 48201
(313) 745-4525
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Cardiovascular Disease
- Taxonomy Code
- 207RC0000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- MD466255
- License State
- PA
- Taxonomy Description
- An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Choice Bronze HSA - HMO
- Choice Bronze HSA + Vision + Adult Dental - HMO
- Clear Gold - HMO
- Clear Gold + Vision + Adult Dental - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Complete Silver - HMO
- Complete Silver + Vision + Adult Dental - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Standard Expanded Bronze - HMO
- Standard Expanded Bronze + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Standard Silver + Vision + Adult Dental - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Elite Bronze - HMO
- Elite Bronze + Vision + Adult Dental - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Everyday Gold - HMO
- Everyday Gold + Vision + Adult Dental - HMO
- Focused Silver - HMO
- Focused Silver + Vision + Adult Dental - HMO
- Standard Expanded Bronze - HMO
- Standard Expanded Bronze + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Standard Silver + Vision + Adult Dental - HMO
- Clear Gold - EPO
- Clear Gold + Vision + Adult Dental - EPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Elite Silver - EPO
- Elite Silver + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Principal Bronze HSA - EPO
- Principal Bronze HSA + Vision + Adult Dental - EPO
- Standard Expanded Bronze - EPO
- Standard Expanded Bronze + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Ashwin Thiagarajasubramanian is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Ashwin Thiagarajasubramanian is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
PECOS PAC ID: 5496057382
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20191212000264
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician
Follow-up hospital inpatient care per day, typically 25 minutes
Follow-up hospital inpatient care per day, typically 35 minutes
Heart rhythm recording, analysis, interpretation and report of continous external ekg over more than 1 week up to 1 weeks
Initial hospital inpatient care per day, typically 50 minutes
Initial hospital inpatient care per day, typically 70 minutes
Initial hospital observation care per day, typically 70 minutes
Nuclear medicine studies of heart muscle at rest and with stress and spect
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
Ultrasound of heart blood flow, valves and chambers, follow-up
Ultrasound of heart with color-depicted blood flow, rate and valve function
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
Ultrasound of heart with probe in esophagus, with report
Ultrasound of heart, follow-up
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
This service was performed 87 times for 68 patientsThis service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
This service was performed 25 times for 19 patientsAn exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.
This service was performed 52 times for 52 patientsAn exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.
This service was performed 52 times for 52 patientsFollow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
This service was performed 82 times for 56 patientsFollow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
This service was performed 99 times for 59 patientsThis procedure involves wearing a device that records your heart's activity for over a week. It helps to identify irregular heart rhythms and understand your heart health better. The collected data is then analyzed, interpreted, and reported by a medical professional.
This service was performed 23 times for 23 patientsInitial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
This service was performed 29 times for 29 patientsInitial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
This service was performed 36 times for 36 patientsThis service involves a healthcare professional closely monitoring your health condition during your hospital stay. It typically lasts for about 70 minutes each day. This helps in timely detection of any changes in your health, allowing for immediate response and treatment.
This service was performed 14 times for 14 patientsNuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.
This service was performed 43 times for 43 patientsAn electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
This service was performed 22 times for 19 patientsThis procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.
This service was performed 13 times for 13 patientsAn ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.
This service was performed 21 times for 21 patientsThis is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
This service was performed 194 times for 189 patientsThis procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.
This service was performed 20 times for 20 patientsA follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.
This service was performed 15 times for 14 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $34.29 for a new patient copayment and $18.61 for an established patient copayment.
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 19460 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $137.17
- Minimum New Patient Price $59.88
- Maximum New Patient Price $180.99
- Average New Patient Copayment $34.29
- Minimum New Patient Copayment $14.97
- Maximum New Patient Copayment $45.24
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $74.47
- Minimum Established Patient Price $19.3
- Maximum Established Patient Price $147.29
- Average Established Patient Copayment $18.61
- Minimum Established Patient Copayment $4.82
- Maximum Established Patient Copayment $36.82
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Ashwin Thiagarajasubramanian is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| POTTSTOWN HOSPITAL | 1600 EAST HIGH STREET POTTSTOWN, PA 19464 | (610) 327-7000 | Acute Care Hospitals | |
| PHOENIXVILLE HOSPITAL | 140 NUTT ROAD PHOENIXVILLE, PA 19460 | (610) 983-1000 | Acute Care Hospitals | |
| EXCELA HEALTH WESTMORELAND REGIONAL HOSPITAL | 532 WEST PITTSBURGH STREET GREENSBURG, PA 15601 | (724) 832-4000 | Acute Care Hospitals | |
| EXCELA HEALTH - FRICK HOSPITAL | 508 SOUTH CHURCH STREET MOUNT PLEASANT, PA 15666 | (724) 547-1500 | Acute Care Hospitals | |
| EXCELA HEALTH LATROBE HOSPITAL | ONE MELLON WAY LATROBE, PA 15650 | (724) 537-1000 | Acute Care Hospitals |
Reviews for DR. ASHWIN KRISHNAN THIAGARAJASUBRAMANIAN M.D.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1134562879, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 61 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 9 providers are registered at the same or a nearby location.
PHOENIXVILLE, PA 19460
PHOENIXVILLE, PA 19460
PHOENIXVILLE, PA 19460
PHOENIXVILLE, PA 19460
PHOENIXVILLE, PA 19460
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1134562879, enumerated as an "individual" on April 11, 2013.
The provider is located at 824 MAIN ST STE 306 PHOENIXVILLE, PA 19460 and the phone number is (610) 983-1941.
Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.
The provider might be accepting Accepts: Ambetter from Buckeye Health Plan, Ambetter Health. Please consult your insurance carrier or call the provider to verify.
Ashwin Thiagarajasubramanian is affiliated with: POTTSTOWN HOSPITAL, PHOENIXVILLE HOSPITAL, EXCELA HEALTH WESTMORELAND REGIONAL HOSPITAL, EXCELA HEALTH - FRICK HOSPITAL and EXCELA HEALTH LATROBE HOSPITAL.