DR. STEVEN NAYMAGON MD
NPI 1730349218
Internal Medicine - Gastroenterology in New York, NY

Q: What is Steven Naymagon's NPI number?

The NPI number for Steven Naymagon is 1730349218. It was assigned to this individual provider in the NPPES registry on June 10, 2008.

Q: What is Steven Naymagon'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 Steven Naymagon was last updated on May 28, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 10, 2008PECOS EnrolledAccepts Medicare Assignment

5 E 98TH ST, NEW YORK, NY 10029(212) 241-4299(212) 426-5099 Get Directions Write a Review

NPPES record last updated: May 28, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Steven Naymagon Md NPPES

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

DR. STEVEN NAYMAGON MD (NPI 1730349218) is an individual gastroenterology provider in New York, New York, licensed in New York (255839) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and is a graduate of Icahn School Of Medicine At Mount Sinai (2008).

NPPES Registry Identity

NPI1730349218

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. STEVEN NAYMAGONCredential: MD

Location Address5 E 98TH STNew York, NY 10029-6501

Mailing Address1 Gustave L Levy Pl, Box 3000New York, NY 10029-6504 · (212) 987-3100 · Fax (212) 731-5210

Phone(212) 241-4299

Fax(212) 426-5099

Sole ProprietorYes

Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 2008

Enumeration DateJune 10, 2008

Last NPPES UpdateMay 28, 2014

✔ NPI 1730349218 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in NY · 255839

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License 928900404 (NY)

5 E 98TH ST, New York, NY 10029

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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. Steven Naymagon 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 ID2466678677

PECOS Enrollment IDI20140724001103

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 Steven Naymagon reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Icahn School Of Medicine At Mount Sinai

0.2 mi

Gastroenterology

1 GUSTAVE L LEVY PL
New York, NY 10029

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

NPI 1730440777 (212) 987-3100

New York Gastroenterology Associates LLP

1.5 mi

Gastroenterology

311 E 79TH ST, SUITE 2A
New York, NY 10021

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

NPI 1356428387 (212) 996-6633

14 Street Medical, PC

4.2 mi

Internal Medicine

332 E 14TH ST
New York, NY 10003

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

NPI 1386091486 (212) 481-3333

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 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.

Injection, vedolizumab, intravenous, 1 mg J3380

Vedolizumab is a medication given via injection. It's used to treat certain bowel conditions (such as Crohn's disease, ulcerative colitis) by reducing inflammation. It works by blocking a certain protein that causes this inflammation.

11,700 services11 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.

263 services198 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.

161 services161 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.

158 services130 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.

124 services123 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.

104 services102 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.

82 services81 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.

72 services72 patients

Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m servic G2012

A virtual check-in is a short online or phone consultation with your healthcare provider. It's for established patients and isn't related to a recent appointment. It's a convenient way to discuss health concerns without needing to visit the office in person.

57 services40 patients

Infusion, normal saline solution, 250 cc J7050

An infusion of normal saline solution, 250 cc, involves administering a sterile saltwater solution into your body through a vein, usually in your arm. This helps to replenish fluids, maintain hydration, and balance electrolytes in your body.

54 services14 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

42 services12 patients

Imaging of digestive tract done from the inside of the digestive tract 91110

This procedure, known as an endoscopy, involves a small camera being passed into the digestive tract. It helps doctors to see the inside of your digestive system in detail. This can aid in diagnosing conditions or planning treatments. It's generally safe and can provide valuable information.

24 services21 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

21 services20 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

15 services15 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

12 services12 patients

Hospital Affiliations CMS Care Compare

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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10029 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

$150.24 typical visit price

range $65.69 – $198.19

Typical copayment $37.56 (range $16.42 – $49.54)

Most-billed visit code 99204

Established Patient

$114.88 typical visit price

range $21.20 – $160.66

Typical copayment $28.72 (range $5.30 – $40.16)

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034

Other-Enteral and Parenteral · category OB006N

2 suppliers11 claims330 services$2.63 avg. paid by Medicare

Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152

Other-Enteral and Parenteral · category OB006N

2 suppliers11 claims3,307 services$0.27 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

REBECCA BARZI NP

Nurse Practitioner (Family)

5 E 98TH ST
NEW YORK, NY 10029

New York County (212) 241-0764

BELINDA YEW PHD

Psychologist (Clinical)

5 E 98TH ST
NEW YORK, NY 10029

New York County (929) 224-3803

JADEN BAYE-CIGNA PA-C

Physician Assistant

5 E 98TH ST
NEW YORK, NY 10029

New York County (212) 241-9728

SUPINDA BUNYAVANICH M.D.

Allergy & Immunology

5 E 98TH ST
NEW YORK, NY 10029

New York County (212) 241-5548

DR. SHELDON LICHTBLAU M.D.

Orthopaedic Surgery

5 E 98TH ST, BOX 1188
NEW YORK, NY 10029

New York County (212) 241-1645

DR. YOUSAF ALI MD

Internal Medicine (Rheumatology)

5 E 98TH ST
NEW YORK, NY 10029

New York County (212) 659-9210

MRS. LESLIE CARLSON SCHLACHTER PA

Physician Assistant

5 E 98TH ST, 6TH FLOOR UROLOGY
NEW YORK, NY 10029

New York County (212) 241-5629

ORTHOPEDICS 2 DEPARTMENT OF MOUNT SINAI

Specialist

5 E 98TH ST
NEW YORK, NY 10029

New York County (212) 241-8892

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 Steven Naymagon's NPI number?

The NPI number for Steven Naymagon is 1730349218. It was assigned to this individual provider in the NPPES registry on June 10, 2008.

Where is Steven Naymagon located?

Steven Naymagon practices at 5 E 98th St, New York, NY 10029. The listed phone number is (212) 241-4299.

What is Steven Naymagon's specialty?

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

Is Steven Naymagon enrolled in Medicare?

Yes. Steven Naymagon 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 Steven Naymagon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Steven Naymagon reassigns Medicare benefits to 3 organizations: Icahn School Of Medicine At Mount Sinai (New York, NY), New York Gastroenterology Associates LLP (New York, NY) and 14 Street Medical, PC (New York, 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 Steven Naymagon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Steven Naymagon affiliated with any hospitals?

According to CMS data, Steven Naymagon is affiliated with Mount Sinai Hospital.

When was this NPI record last updated?

The NPPES record for Steven Naymagon was last updated on May 28, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.