DR. OLEG KATCHER MD
NPI 1598701468
Internal Medicine - Gastroenterology in Brooklyn, NY

Q: What is Oleg Katcher's NPI number?

The NPI number for Oleg Katcher is 1598701468. It was assigned to this individual provider in the NPPES registry on June 21, 2006.

Q: What is Oleg Katcher's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Oleg Katcher was last updated on June 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since June 21, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 33D1059450 · Certificate of Compliance

75/100

CMS Quality Rating

1765 E 19TH ST, BROOKLYN, NY 11229(718) 360-5953(718) 758-4380 Get Directions Write a Review

NPPES record last updated: June 15, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 15, 2020, Jun 1, 2020, May 13, 2020 and 1 more (4 updates tracked since 2016).

On this page

About Dr. Oleg Katcher Md NPPES

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

DR. OLEG KATCHER MD (NPI 1598701468) is an individual gastroenterology provider in Brooklyn, New York, licensed in New York (211769) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, holds a CLIA Certificate of Compliance certificate valid through August 20, 2027, and is a graduate of Icahn School Of Medicine At Mount Sinai (1997).

NPPES Registry Identity

NPI1598701468

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. OLEG KATCHERCredential: MD

Location Address1765 E 19TH STBrooklyn, NY 11229-2233

Mailing Address1765 E 19th StBrooklyn, NY 11229-2233 · (718) 360-5953 · Fax (718) 758-4380

Phone(718) 360-5953

Fax(718) 758-4380

Sole ProprietorYes

Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 1997

Enumeration DateJune 21, 2006

Last NPPES UpdateJune 15, 20204 updates tracked since enumeration

NPPES CertifiedJune 15, 2020

✔ NPI 1598701468 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in NY · 211769

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

1765 E 19TH ST, Brooklyn, NY 11229

Open in Google Maps ↗

Other Identifiers 1

Medicaid02461714NY

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. Oleg Katcher Md 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 ID4789575184

PECOS Enrollment IDI20040324000289

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 Reassignments

Medicare enrollment records show Oleg Katcher reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Oleg Katcher Mdpc

Same address

Gastroenterology

1765 EAST 19TH STREET
Brooklyn, NY 11229

Reassigned Medicare billing, New York enrollment
Medicare enrollment name: Oleg Katcher MD PC
2 clinicians in this Medicare group

NPI 1124191325 (718) 758-4379

Gastrointestinal Care Of Long Island PLLC

26 mi

Gastroenterology

187 VETERANS BLVD
Massapequa, NY 11758

Reassigned Medicare billing, New York enrollment
223 clinicians in this Medicare group

NPI 1265571863 (516) 795-5523

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

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 Compliance 33D1059450

Oleg Katcher MD PC · Brooklyn, NY

Active · expires Aug 20, 2027

CLIA Number33D1059450

Laboratory TypePhysician Office

Certificate Effective DateAugust 21, 2025

Certificate Expiration DateAugust 20, 2027

Laboratory DirectorDr. Andrew H. Oliff

Laboratory Phone(718) 360-5953

Laboratory LocationOleg Katcher MD PC1765 East 19th Street, Brooklyn, NY 11229

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Areas of Expertise CMS Part B claims 15

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.

543 services363 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

310 services301 patients

Ultrasound of abdomen and pelvis artery and vein blood flow 93976

An ultrasound of your abdomen and pelvis arteries and veins is a non-invasive procedure that uses sound waves to create images of your blood vessels. This helps in assessing the flow of blood, identifying blockages, or detecting other abnormalities. It's a safe, painless process.

281 services273 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

260 services189 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

209 services204 patients

Ultrasound scan of organ tissue for measuring elasticity 76981

An ultrasound scan of organ tissue measures elasticity, or flexibility. This non-invasive procedure uses sound waves to create images of the inside of your body. It helps in assessing the health of various organs by detecting changes in their stiffness or softness.

189 services189 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.

161 services133 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

156 services156 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

127 services127 patients

Measurement of hydrogen in breath to test for stomach and bowel symptoms 91065

This test involves breathing into a bag to measure hydrogen levels in your breath. High levels can indicate issues with food digestion or absorption in your stomach or intestines. It's non-invasive, painless, and helps diagnose certain gastrointestinal conditions.

105 services44 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

101 services100 patients

Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery 45384

This procedure involves using a flexible tube with a camera, called an endoscope, to view the large intestine. If any abnormal growths or polyps are found, they are removed with an electrically-heated instrument. This is a common way to prevent bowel issues.

34 services33 patients

Test for tone and sensation of rectum and anus 91120

This procedure checks the health of the lower digestive tract. The doctor gently examines the area to assess its muscle strength and sensitivity. This helps in detecting any abnormal conditions. It's a standard, safe procedure with minimal discomfort.

30 services30 patients

Study of rectum sensitivity and function 91122

This procedure examines the rectum's sensitivity and functionality. It involves a small, soft balloon inserted into the rectum and inflated to various degrees. The goal is to assess how well your rectum can sense and respond to different volumes. It's a crucial test for diagnosing certain digestive issues.

30 services30 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

12 services12 patients

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

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

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.

75/100

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

Scored as part of a group practice

Reported Quality Measures

Colorectal Cancer Screening

Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer

100%210 patients5/55-star benchmark: 100%

Photodocumentation of Cecal Intubation

The rate of screening and surveillance colonoscopies for which photodocumentation of landmarks of cecal intubation is performed to establish a complete examination

99%198 patients

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.

Other Providers at the Same Location NPPES 2

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

KINGS HIGHWAY ENDOSCOPY PC

Internal Medicine (Gastroenterology)

1765 E 19TH ST
BROOKLYN, NY 11229

Kings County (718) 360-5953

IGOR MAGANOV MEDICAL PC

Anesthesiology

1765 E 19TH ST
BROOKLYN, NY 11229

Kings County (718) 360-5953

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 Oleg Katcher's NPI number?

The NPI number for Oleg Katcher is 1598701468. It was assigned to this individual provider in the NPPES registry on June 21, 2006.

Where is Oleg Katcher located?

Oleg Katcher practices at 1765 E 19th St, Brooklyn, NY 11229. The listed phone number is (718) 360-5953.

What is Oleg Katcher's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Oleg Katcher enrolled in Medicare?

Yes. Oleg Katcher 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 organizations bill Medicare for Oleg Katcher's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Oleg Katcher reassigns Medicare benefits to 2 organizations: Oleg Katcher Mdpc (Brooklyn, NY) and Gastrointestinal Care Of Long Island PLLC (Massapequa, NY). Each 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 Oleg Katcher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does Oleg Katcher hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 33D1059450) is associated with this NPI, valid through August 20, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Oleg Katcher was last updated on June 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.