1. Home
  2. Directory
  3. New Jersey
  4. East Windsor
  5. Internal Medicine
  6. NPI Profile

DR. IRENE KOTOK M.D.
NPI 1386136935
Internal Medicine in East Windsor, NJ

Active since May 30, 2018PECOS EnrolledAccepts Medicare Assignment
319 HIGHWAY 130 NORTH, SUITE 29B, EAST WINDSOR, NJ 08520(609) 426-1555(609) 443-1394 Get Directions Write a Review

NPPES record last updated: September 27, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Irene Kotok M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. IRENE KOTOK M.D. (NPI 1386136935) is an individual internal medicine provider in East Windsor, New Jersey, licensed in New Jersey (25MA11572900) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS, is affiliated with University Medical Center Of Princeton At Plainsboro, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1386136935
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. IRENE KOTOKCredential: M.D.
Location Address319 HIGHWAY 130 NORTH, SUITE 29BEast Windsor, NJ 08520
Mailing AddressPo Box 416457Boston, MA 02241-6457 · (844) 362-1735 · Fax (973) 290-7495
Phone(609) 426-1555
Fax(609) 443-1394
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateMay 30, 2018
Last NPPES UpdateSeptember 27, 2022
NPPES CertifiedSeptember 23, 2022
✔ NPI 1386136935 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NJ · 25MA11572900
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPediatricsTaxonomy 208000000X · License 25MA11572900 (NJ)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
319 HIGHWAY 130 NORTH, East Windsor, NJ 08520
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Irene Kotok M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840627675
PECOS Enrollment IDI20221017000762
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Irene Kotok reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Practice Associates Medical Group
35 mi
Internal Medicine
100 MADISON AVENUE, INTEROFFICE #68
Morristown, NJ 07960
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,699 clinicians in this Medicare group
NPI 1427016385 (844) 264-2250

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
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.
178 services85 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
81 services64 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
37 services37 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An 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.
27 services27 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
20 services20 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428
This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
19 services16 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Medical Center Of Princeton At Plainsboro

Acute Care Hospitals · Plainsboro, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310010
LocationOne-Five Plainsboro RoadPlainsboro, NJ 08536 · Middlesex County
Emergency services Birthing friendly

Centrastate Medical Center

Acute Care Hospitals · Freehold, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310111
Location901 West Main StreetFreehold, NJ 07728 · Monmouth County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08520 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.34 typical visit price
range $61.59 – $185.05
Typical copayment $35.08 (range $15.39 – $46.26)
Most-billed visit code 99204
Established Patient
$107.94 typical visit price
range $20.08 – $150.98
Typical copayment $26.98 (range $5.02 – $37.74)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. RONALD H. DUBOW M.D.
Internal Medicine
319 HIGHWAY 130 NORTH, SUITE 29B
EAST WINDSOR, NJ 08520
Mercer County (609) 426-1555

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Irene Kotok's NPI number?

The NPI number for Irene Kotok is 1386136935. It was assigned to this individual provider in the NPPES registry on May 30, 2018.

Where is Irene Kotok located?

Irene Kotok practices at 319 Highway 130 North Suite 29B, East Windsor, NJ 08520. The listed phone number is (609) 426-1555.

What is Irene Kotok's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Irene Kotok enrolled in Medicare?

Yes. Irene Kotok is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Irene Kotok's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Irene Kotok reassigns Medicare benefits to Practice Associates Medical Group (Morristown, NJ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Irene Kotok's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Irene Kotok accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Irene Kotok as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Irene Kotok affiliated with any hospitals?

According to CMS data, Irene Kotok is affiliated with University Medical Center Of Princeton At Plainsboro and Centrastate Medical Center.

When was this NPI record last updated?

The NPPES record for Irene Kotok was last updated on September 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.