WILLIAM EISNER
NPI 1427019199
Physical Therapist - Electrophysiology, Clinical in Louisville, KY

NPI Status: Active since March 31, 2006

Contact Information

4420 DIXIE HWY
SUITE 122
LOUISVILLE, KY
ZIP 40216
Phone: (502) 802-8060
Fax: (502) 449-9062

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  • Individual
  • Male
  • Years of Experience 29
  • Physical Therapist
  • Electrophysiology, Clinical
  • Accepts Insurance
  • Accepts Medicare Approved Payment

About WILLIAM EISNER

This page provides the complete NPI Profile along with additional information for William Eisner, a provider established in Louisville, Kentucky with a medical specialization in Physical Therapist, focusing in electrophysiology, clinical and more than 29 years of experience. He graduated from University Of Kentucky College Of Medicine in 1997. The healthcare provider is registered in the NPI registry with number 1427019199 assigned on March 2006. The practitioner's primary taxonomy code is 2251E1300X with license number 003233 (KY). The provider is registered as an individual and his NPI record was last updated March 2026.

NPI
1427019199
Provider Name
WILLIAM EISNER
Gender
Male
Entity Type
Individual
Location Address
4420 DIXIE HWY SUITE 122 LOUISVILLE, KY 40216
Location Phone
(502) 802-8060
Location Fax
(502) 449-9062
Mailing Address
4420 DIXIE HWY SUITE 122 LOUISVILLE, KY 40216
Mailing Phone
(502) 802-8060
Mailing Fax
(502) 449-9062
Medical School Name
UNIVERSITY OF KENTUCKY COLLEGE OF MEDICINE
Graduation Year
1997
Is Sole Proprietor?
No
Enumeration Date
03-31-2006
Last Update Date
03-17-2026
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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

Physical Therapist Electrophysiology, Clinical

Taxonomy Code
2251E1300X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
003233
License State
KY
Taxonomy Description
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Clinical Electrophysiologic Physical Therapy, who has demonstrated specialized knowledge and skill in electrophysiologic examinations and evaluations and encompasses both the professional and technical components of the observation, recording, analysis, and interpretation of bioelectric muscle and nerve potentials, detected by means of surface or needle electrodes, for the purpose of evaluating the integrity of the neuromuscular system. Electrophysiologic evaluations include, but are not limited to, electrodiagnostic testing, which includes clinical needle electromyography, motor and sensory nerve conduction studies, and other evoked potential procedures.

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)
1225100000XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Physical Therapist

070022541 (IL)
22251E1300XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Physical Therapist
Electrophysiology, Clinical

070022541 (IL)
32251E1300XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Physical Therapist
Electrophysiology, Clinical

05007955A (IN)

Insurance Plans Accepted

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

  • Bronze 7500 $25 Generic Drugs - HMO
  • Bronze 7500 $25 Generic Drugs + Adult Vision & Fitness - HMO
  • Diabetes Gold 3000 $0 Chronic Care Drugs & Services - HMO
  • Diabetes Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
  • Diabetes Silver 5000 $0 Chronic Care Drugs & Services - HMO
  • Diabetes Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
  • Gold 2000 $15 Generic Drugs - HMO
  • Gold 2000 $15 Generic Drugs + Adult Vision & Fitness - HMO
  • HDHP Preventive Silver 5500 $0 Chronic Care Drugs - HMO
  • Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services - HMO
  • Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
  • Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services - HMO
  • Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
  • HSA Eligible Bronze 6000 - HMO
  • Low Premium Bronze 10600 $25 Generic Drugs - HMO
  • Low Premium Bronze 10600 $25 Generic Drugs + Adult Vision & Fitness - HMO
  • Low Premium Silver 6200 $3 Generic Drugs - HMO
  • Low Premium Silver 6200 $3 Generic Drugs + Adult Vision & Fitness - HMO
  • Platinum Zero $5 Generic Drugs - HMO
  • Platinum Zero $5 Generic Drugs + Adult Vision & Fitness - HMO

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

Medicare Participation & PECOS Enrollment Status

William Eisner 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.

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.

  • PECOS PAC ID: 2961455704

    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: I20050222000317, I20151117000961, I20250421001355

    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.

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.

Needle measurement of electrical activity in arm or leg muscles, complete study

This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.

This service was performed 268 times for 167 patients

Nerve conduction, 5-6 studies

Nerve conduction studies involve testing the speed and strength of signals traveling through your nerves. This helps identify any nerve damage or dysfunction. For 5-6 studies, this means multiple nerves will be tested. Small electrodes are placed on your skin to send and receive signals, causing minimal discomfort.

This service was performed 49 times for 48 patients

Nerve conduction, 7-8 studies

Nerve conduction studies involve testing the speed and strength of signals traveling through your nerves. This helps doctors identify nerve damage. In a 7-8 study procedure, 7-8 specific nerves are tested. You may feel a mild, brief tingling or shock during the test.

This service was performed 43 times for 42 patients

Nerve conduction, 9-10 studies

Nerve conduction studies involve sending small electrical shocks through the skin to measure how quickly nerves transmit signals. This helps detect nerve damage. 9-10 studies mean this process will be repeated on different nerves to gather comprehensive data.

This service was performed 77 times for 77 patients

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. William Eisner is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
GOOD SAMARITAN REGIONAL HLTH CENTER1 GOOD SAMARITAN WAY
MOUNT VERNON, IL 62864
(618) 899-1469Acute 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 1427019199, 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.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
2
Doubled → 4
Pos 4
7
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
1
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
9
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 2 → 4 0 → 0 9 → 18 → 9 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 0 + 1 + 1 + 8 + 1 + 1 + 8 + 24 = 61

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.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1427019199.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Physical Therapist
4420 DIXIE HWY
LOUISVILLE, KY 40216
Clinic/Center (Medical Specialty)
4420 DIXIE HWY, STE 120
LOUISVILLE, KY 40216
Physical Therapist
4420 DIXIE HWY, SUITE 122
LOUISVILLE, KY 40216
Internal Medicine
4420 DIXIE HWY, STE. 114
LOUISVILLE, KY 40216
Nurse Practitioner (Family)
4420 DIXIE HWY, STE. 114
LOUISVILLE, KY 40216
Specialist/Technologist (Athletic Trainer)
4420 DIXIE HWY
LOUISVILLE, KY 40216
Family Medicine
4420 DIXIE HWY, STE. 114
LOUISVILLE, KY 40216
Specialist/Technologist (Athletic Trainer)
4420 DIXIE HWY
LOUISVILLE, KY 40216
Clinic/Center (Rehabilitation)
4420 DIXIE HWY, SUITE 122
LOUISVILLE, KY 40216
Durable Medical Equipment & Medical Supplies
4420 DIXIE HWY, SUITE 118
LOUISVILLE, KY 40216
Physical Therapist
4420 DIXIE HWY, SUITE 122
LOUISVILLE, KY 40216
Hospitalist
4420 DIXIE HWY, SUITE 112
LOUISVILLE, KY 40216
Internal Medicine
4420 DIXIE HWY, STE. 114
LOUISVILLE, KY 40216
Obstetrics & Gynecology
4420 DIXIE HWY, SUITE 128
LOUISVILLE, KY 40216
Physical Therapist
4420 DIXIE HWY, SUITE 122
SHIVELY, KY 40216
Family Medicine
4420 DIXIE HWY, STE. 114
LOUISVILLE, KY 40216
Durable Medical Equipment & Medical Supplies
4420 DIXIE HWY, SUITE 130
LOUISVILLE, KY 40216
Nurse Practitioner (Family)
4420 DIXIE HWY
LOUISVILLE, KY 40216

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427019199, enumerated as an "individual" on March 31, 2006.

The provider is located at 4420 DIXIE HWY SUITE 122 LOUISVILLE, KY 40216 and the phone number is (502) 802-8060.

Physical Therapist with taxonomy code 2251E1300X and a focus in Electrophysiology, Clinical.

The provider might be accepting Accepts: CareSource. Please consult your insurance carrier or call the provider to verify.

William Eisner is affiliated with: GOOD SAMARITAN REGIONAL HLTH CENTER.