LEONID KOZER M.D.
NPI 1396798872
Internal Medicine - Cardiovascular Disease in Brooklyn, NY

Q: What is Leonid Kozer's NPI number?

The NPI number for Leonid Kozer is 1396798872. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Q: What is Leonid Kozer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Leonid Kozer was last updated on April 24, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since May 18, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 33D1022805 · Waiver

92.56/100

CMS Quality Rating

1729 E 12TH ST FL 2NF, BROOKLYN, NY 11229(718) 375-2825(718) 375-4231 Get Directions Write a Review

NPPES record last updated: April 24, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Leonid Kozer M.d. NPPES

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

LEONID KOZER M.D. (NPI 1396798872) is an individual cardiovascular disease provider in Brooklyn, New York, licensed in New York (210014) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through February 25, 2028, and is affiliated with New York Community Hospital Of Brooklyn, Inc..

NPPES Registry Identity

NPI1396798872

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameLEONID KOZERCredential: M.D.

Location Address1729 E 12TH ST FL 2NFBrooklyn, NY 11229-1088

Mailing Address1550 E 13th St, Apt 6-gBrooklyn, NY 11230-7158 · (718) 375-2825 · Fax (718) 375-4231

Phone(718) 375-2825

Fax(718) 375-4231

Sole ProprietorYes

Medical School CMSOtherGraduated 1985

Enumeration DateMay 18, 2006

Last NPPES UpdateApril 24, 2025

NPPES CertifiedApril 24, 2025

✔ NPI 1396798872 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in NY · 210014

Definition

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.

1729 E 12TH ST FL 2NF, Brooklyn, NY 11229

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Other Identifiers 1

Medicaid01952501NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Leonid Kozer 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 ID2567453665

PECOS Enrollment IDI20040519000100

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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 33D1022805

Leonid M Kozer Medical PC · Brooklyn, NY

Active · expires Feb 25, 2028

CLIA Number33D1022805

Laboratory TypePhysician Office

Certificate Effective DateFebruary 26, 2026

Certificate Expiration DateFebruary 25, 2028

Laboratory DirectorLeonid Kozer

Laboratory Phone(718) 375-2825

Laboratory LocationLeonid M Kozer Medical PC1729 East 12th Street 2nd Floor, Brooklyn, NY 11230

CLIA data matches this NPI record on: Phone

This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 28

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

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.

2,231 services294 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.

1,348 services459 patients

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.

1,311 services405 patients

Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days 93297

This service involves remotely monitoring your heart and blood vessel implant system for up to 30 days. Using advanced technology, healthcare professionals can track the device's performance and your health status, ensuring the system is working optimally for your needs.

752 services78 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This 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.

463 services426 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 93296

This procedure involves remotely monitoring your pacemaker or implantable defibrillator system. Over a 90-day period, we check the device's performance and your heart's activity. This helps ensure the device is functioning properly and providing the best possible support for your heart health.

256 services82 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

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.

238 services196 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294

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.

236 services77 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

162 services123 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

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.

128 services120 patients

Programming of dual lead pacemaker system 93280

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.

126 services58 patients

Evaluation of cardiac rhythm monitor system, remote up to 30 days 93298

This procedure involves remotely monitoring your heart rhythm for up to 30 days. A small device will record your heart's activity, which can be accessed by your healthcare team. This aids in diagnosing any irregularities or issues with your heart function.

123 services17 patients

Injection, regadenoson, 0.1 mg J2785

Regadenoson injection, 0.1 mg, is a medication used to help visualize the heart during a stress test. It works by increasing blood flow in the arteries of the heart. It's injected into a vein and is generally well-tolerated.

112 services28 patients

Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries A9555

Rubidium Rb-82 is a radioactive drug used in a PET scan to help visualize the heart. It helps detect areas with poor blood flow, aiding in diagnosing heart conditions. The dose is up to 60 millicuries per study.

84 services42 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

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.

76 services75 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.

74 services48 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

70 services45 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

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.

62 services52 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

60 services53 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

58 services58 patients

Ultrasound study of arm and leg arteries 93922

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

49 services49 patients

Injection, aminophyllin, up to 250 mg J0280

An aminophyllin injection is a treatment often used for severe asthma or other lung conditions. It helps to relax and open air passages in the lungs, making it easier to breathe. Up to 250 mg can be administered in one dose.

47 services30 patients

Nuclear medicine studies of blood flow in heart muscle at rest and with stress 78492

Nuclear medicine studies help visualize blood flow in your heart at rest and during stress. A small amount of radioactive substance is injected, which your heart absorbs. Images are then taken to assess your heart's health and function.

42 services42 patients

Smoking and tobacco use intensive counseling, 4-10 minutes 99406

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

39 services20 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

35 services35 patients

Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional 93229

An Electrocardiogram (ECG) is a test that records your heart's electrical activity for up to 30 days. You trigger a transmission if you feel symptoms, which is then reviewed by a healthcare professional. The report helps diagnose heart conditions.

35 services35 patients

Programming of dual lead pacemaker system 93280

20 services18 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

17 services16 patients

Hospital Affiliations CMS Care Compare 4

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

New York Community Hospital Of Brooklyn, Inc.

Acute Care Hospitals · Brooklyn, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330019

Location2525 Kings HighwayBrooklyn, NY 11229 · Kings County

Emergency services

Mount Sinai Hospital

Acute Care Hospitals · New York, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330024

LocationOne Gustave L Levy PlaceNew York, NY 10029 · New York County

Emergency services Birthing friendly

Mount Sinai Beth Israel

Acute Care Hospitals · New York, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330169

LocationFirst Avenue At 16th StreetNew York, NY 10003 · New York County

Emergency services

Maimonides Medical Center

Acute Care Hospitals · Brooklyn, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330194

Location4802 Tenth AvenueBrooklyn, NY 11219 · Kings County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11229 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

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

Established Patient

$83.44 typical visit price

range $21.66 – $164.45

Typical copayment $20.86 (range $5.41 – $41.11)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

92.56/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

77.4

Improvement Activities

Cost

72.01

Reported Quality Measures

Advance Care Plan

100%670 patients5/55-star benchmark: 100%

Controlling High Blood Pressure

91%551 patients4/55-star benchmark: 98%

Coronary Artery Disease (CAD): Antiplatelet Therapy

78%280 patients4/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

100%2,808 patients5/55-star benchmark: 100%

Heart Failure (HF): Angiotensin-Converting Enzyme (ACE) Inhibitor or Angiotensin Receptor Blocker (ARB) or Angiotensin Receptor-Neprilysin Inhibitor (ARNI) Therapy for Left Ventricular Systolic Dysfunction (LVSD)

100%646 patients5/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

72%1,022 patients3/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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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 Leonid Kozer's NPI number?

The NPI number for Leonid Kozer is 1396798872. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Leonid Kozer located?

Leonid Kozer practices at 1729 E 12th St Fl 2nf, Brooklyn, NY 11229. The listed phone number is (718) 375-2825.

What is Leonid Kozer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Leonid Kozer enrolled in Medicare?

Yes. Leonid Kozer 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.

Does Leonid Kozer hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D1022805) is associated with this NPI, valid through February 25, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

Is Leonid Kozer affiliated with any hospitals?

According to CMS data, Leonid Kozer is affiliated with New York Community Hospital Of Brooklyn, Inc., Mount Sinai Hospital, Mount Sinai Beth Israel and Maimonides Medical Center.

When was this NPI record last updated?

The NPPES record for Leonid Kozer was last updated on April 24, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

About Leonid Kozer M.d. NPPES

NPPES Registry Identity

Specialties & Licenses

Other Identifiers 1

Medicare Participation & PECOS CMS

Medicare Enrollment Status

CLIA Laboratory Certificates CMS CLIA

Certificate of Waiver · 33D1022805

Areas of Expertise CMS Part B claims 28

Hospital Affiliations CMS Care Compare 4

New York Community Hospital Of Brooklyn, Inc.

Mount Sinai Hospital

Mount Sinai Beth Israel

Maimonides Medical Center

Physician Visit Costs CMS claims · ZIP area

Medicare Quality Performance CMS QPP · MIPS

Reported Quality Measures

Frequently Asked Questions NPPES & CMS

What is Leonid Kozer's NPI number?

Where is Leonid Kozer located?

What is Leonid Kozer's specialty?

Is Leonid Kozer enrolled in Medicare?

Does Leonid Kozer hold a CLIA laboratory certificate?

Is Leonid Kozer affiliated with any hospitals?

When was this NPI record last updated?

Certificate of Waiver 33D1022805