DR. WENCHI KEVIN TSAI MD
NPI 1558578740
Internal Medicine - Clinical Cardiac Electrophysiology in Newark, DE

NPI Status: Active since May 17, 2007

Contact Information

4755 OGLETOWN STANTON ROAD
SUITE 1070
NEWARK, DE
ZIP 19718
Phone: (302) 623-1929
Fax: (973) 256-7758

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  • Individual
  • Male
  • Years of Experience 21
  • Internal Medicine
  • Clinical Cardiac Electrophysiology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About WENCHI TSAI

This page provides the complete NPI Profile along with additional information for Wenchi Tsai, an internist established in Newark, Delaware with a medical specialization in Internal Medicine, focusing in clinical cardiac electrophysiology and more than 21 years of experience. He graduated from University Of Maryland School Of Medicine in 2006. The healthcare provider is registered in the NPI registry with number 1558578740 assigned on May 2007. The practitioner's primary taxonomy code is 207RC0001X with license number MD493562 (PA). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1558578740
Provider Name
DR. WENCHI KEVIN TSAI MD
Gender
Male
Entity Type
Individual
Location Address
4755 OGLETOWN STANTON ROAD SUITE 1070 NEWARK, DE 19718
Location Phone
(302) 623-1929
Location Fax
(973) 256-7758
Mailing Address
4755 OGLETOWN STANTON RD STE 1070 NEWARK, DE 19718
Mailing Phone
(973) 256-5667
Mailing Fax
(973) 256-7758
Medical School Name
UNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduation Year
2006
Is Sole Proprietor?
No
Enumeration Date
05-17-2007
Last Update Date
07-01-2026
Code Navigator

An internist like Wenchi Tsai 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

  • 255 W Lancaster Ave Ste 200
    Paoli, PA 19301
    (484) 476-1000

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 Clinical Cardiac Electrophysiology

Taxonomy Code
207RC0001X
Type
Allopathic & Osteopathic Physicians
License No.
MD493562
License State
PA
Taxonomy Description
A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207RC0000XAllopathic & Osteopathic Physicians

Internal Medicine
Cardiovascular Disease

25MA09531900 (NJ)
2207RC0000XAllopathic & Osteopathic Physicians

Internal Medicine
Cardiovascular Disease

C1-0012715 (DE)
3207RC0000XAllopathic & Osteopathic Physicians

Internal Medicine
Cardiovascular Disease

2845861 (NY)
4207RC0001XAllopathic & Osteopathic Physicians

Internal Medicine
Clinical Cardiac Electrophysiology

2845861 (NY)
5207RC0001XAllopathic & Osteopathic Physicians

Internal Medicine
Clinical Cardiac Electrophysiology

25MA09531900 (NJ)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • AmeriHealth Caritas Next Bronze Essential + No Referrals - HMO
  • AmeriHealth Caritas Next Bronze Premier + No Referrals - HMO
  • AmeriHealth Caritas Next Bronze Signature + No Referrals - HMO
  • AmeriHealth Caritas Next Gold Premier + No Referrals - HMO
  • AmeriHealth Caritas Next Gold Signature + No Referrals - HMO
  • AmeriHealth Caritas Next Silver Essential + No Referrals - HMO
  • AmeriHealth Caritas Next Silver Premier + No Referrals - HMO
  • AmeriHealth Caritas Next Silver Signature + No Referrals - HMO
  • my Blue Access Major Events Select PPO Catastrophic 10600 - 3 Free PCP Visits - PPO
  • my Blue Access Select PPO Bronze 3800 - PPO
  • my Blue Access Select PPO Bronze 3800 + Adult Dental and Vision - PPO
  • my Blue Access Select PPO Bronze 9200 - PPO
  • my Blue Access Select PPO Gold 0 - PPO
  • my Blue Access Select PPO Gold 0 + Adult Dental and Vision - PPO
  • my Blue Access Select PPO Gold 1700 HSA - PPO
  • my Blue Access Select PPO Premier Gold 0 + Adult Dental and Vision - PPO
  • my Blue Access Select PPO Premier Platinum 0 + Adult Dental and Vision - PPO
  • my Blue Access Select PPO Premier Silver 0 + Adult Dental and Vision - PPO
  • my Blue Access Select PPO Standard Bronze 7500 - PPO
  • my Blue Access Select PPO Standard Gold 2000 - PPO
  • my Blue Access Select PPO Standard Gold 2000 + Adult Dental and Vision - PPO
  • my Blue Access Select PPO Standard Platinum 0 - PPO
  • my Blue Access Select PPO Standard Silver 6000 - PPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Wenchi Tsai 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.

Wenchi Tsai 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: 7719152172

    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: I20181119000666

    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.

Comprehensive electrophysiologic evaluation with catheter destruction of abnormality causing atrial fibrillation (uncoordinated contraction of upper chambers of heart) by pulmonary vein isolation

This is a procedure to treat atrial fibrillation, a condition causing irregular heartbeats. It involves a detailed heart evaluation using electrophysiology. A catheter is then used to destroy the problematic area causing the issue. Specifically, isolation of the pulmonary vein is done to regulate the heartbeat.

This service was performed 25 times for 25 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more

This 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 189 times for 175 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more

This 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 41 times for 38 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more

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 105 times for 100 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more

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 35 times for 35 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days

This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.

This service was performed 25 times for 25 patients

Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days

This procedure involves remotely monitoring your implantable defibrillator system, which can have single, dual, or multiple leads. Over a period of up to 90 days, the system's performance is evaluated to ensure it's working properly and providing the necessary heart rhythm support.

This service was performed 18 times for 18 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician

An 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 12 times for 12 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician

An 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 12 times for 12 patients

External shock to heart to regulate heart beat

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

This service was performed 21 times for 20 patients

Hospital discharge day management, more than 30 minutes

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

This service was performed 11 times for 11 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes

Initial 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 89 times for 88 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes

Initial 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 49 times for 49 patients

Insertion of catheters and destruction of tissue to treat abnormal heart rhythm

This procedure involves placing small tubes (catheters) into your heart via a blood vessel. These catheters emit energy that corrects irregular heartbeats by eliminating the problematic heart tissue. It's a common, minimally invasive method to treat abnormal heart rhythms.

This service was performed 13 times for 13 patients

Insertion of heart rhythm monitor under skin

The insertion of a heart rhythm monitor under the skin is a procedure to track your heart's activity. A small device is placed under your skin, recording your heart's rhythms continuously. This helps identify irregular heartbeats or conditions, aiding in your treatment.

This service was performed 17 times for 17 patients

Insertion of pacemaker and upper and lower heart chamber electrode

A pacemaker insertion is a procedure where a small device, called a pacemaker, is implanted under your skin. This device uses electrical pulses to prompt the heart to beat at a normal rate. Electrodes are placed in the upper and lower chambers of your heart to help regulate your heartbeat.

This service was performed 20 times for 20 patients

Programming of dual lead pacemaker system

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

This service was performed 22 times for 21 patients

Programming of multiple lead implantable defibrillator system

Programming of a multiple lead implantable defibrillator system involves adjusting settings on your implanted device to help control irregular heart rhythms. The process is non-invasive and helps ensure optimal device performance for maintaining heart health.

This service was performed 23 times for 20 patients

Removal and replacement of dual lead permanent pacemaker

This procedure involves removing an old dual lead pacemaker and replacing it with a new one. A pacemaker helps regulate your heart's rhythm. The dual lead model has two wires connecting to your heart to improve its electrical signaling. The replacement is done under local anesthesia.

This service was performed 14 times for 14 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

This service was performed 174 times for 152 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

This service was performed 40 times for 40 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes

Follow-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 57 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes

Follow-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 93 times for 60 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $32.78 for a new patient copayment and $25.17 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 19718 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $131.15
  • Minimum New Patient Price $57.12
  • Maximum New Patient Price $173.08
  • Average New Patient Copayment $32.78
  • Minimum New Patient Copayment $14.28
  • Maximum New Patient Copayment $43.27

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $100.68
  • Minimum Established Patient Price $18.36
  • Maximum Established Patient Price $141.05
  • Average Established Patient Copayment $25.17
  • Minimum Established Patient Copayment $4.59
  • Maximum Established Patient Copayment $35.26

* 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. Wenchi Tsai is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
UNION HOSPITAL OF CECIL COUNTY106 BOW STREET
ELKTON, MD 21921
(410) 392-7009Acute Care Hospitals
CHESTER COUNTY HOSPITAL701 EAST MARSHALL STREET
WEST CHESTER, PA 19380
(610) 431-5000Acute Care Hospitals

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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 1558578740, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
8
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
4
Doubled → 8
Check
0
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 5 → 10 → 1 5 → 10 → 1 8 → 16 → 7 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 1 + 0 + 8 + 1 + 0 + 7 + 1 + 6 + 7 + 8 + 24 = 70

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 70 is 70. The difference is the calculated check digit.

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1558578740.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pathology (Anatomic Pathology & Clinical Pathology)
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Nurse Practitioner (Obstetrics & Gynecology)
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Emergency Medicine
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Emergency Medicine
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Emergency Medicine
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Emergency Medicine
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Physician Assistant
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Physician Assistant
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Physician Assistant
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Physician Assistant
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Physician Assistant
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Obstetrics & Gynecology
4755 OGLETOWN STANTON ROAD, DEPT OF OB/GYN, SUITE 1900
NEWARK, DE 19718
Emergency Medicine
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Physical Therapist
4755 OGLETOWN STANTON ROAD, CHRISTIANA HOSPITAL ROOM 1037
NEWARK, DE 19718
Internal Medicine (Cardiovascular Disease)
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Dietitian, Registered
4755 OGLETOWN STANTON ROAD
NEWARK, DE 19718
Nurse Practitioner (Family)
4755 OGLETOWN STANTON ROAD, CLINICAL DECISION UNIT
NEWARK, DE 19718
Internal Medicine (Cardiovascular Disease)
4755 OGLETOWN STANTON ROAD, CHRISTIANA HOSPITAL
NEWARK, DE 19718
Nurse Practitioner (Family)
4755 OGLETOWN STANTON ROAD, SUITE 6E88
NEWARK, DE 19718
Nurse Practitioner (Family)
4755 OGLETOWN STANTON ROAD, 6TH FLOOR
NEWARK, DE 19718

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558578740, enumerated as an "individual" on May 17, 2007.

The provider is located at 4755 OGLETOWN STANTON ROAD SUITE 1070 NEWARK, DE 19718 and the phone number is (302) 623-1929.

Internal Medicine with taxonomy code 207RC0001X and a focus in Clinical Cardiac Electrophysiology.

The provider might be accepting Accepts: AmeriHealth Caritas Next and Highmark Blue Cross. Please consult your insurance carrier or call the provider to verify.

Wenchi Tsai is affiliated with: UNION HOSPITAL OF CECIL COUNTY and CHESTER COUNTY HOSPITAL.