DR. NATALIE SEMENYUK M.D.
NPI 1841232642
Obstetrics & Gynecology in East Setauket, NY

Q: What is Natalie Semenyuk's NPI number?

The NPI number for Natalie Semenyuk is 1841232642. It was assigned to this individual provider in the NPPES registry on June 13, 2006.

Q: What is Natalie Semenyuk's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Natalie Semenyuk was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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 13, 2006PECOS Enrolled

100/100

CMS Quality Rating

6 TECHNOLOGY DR, EAST SETAUKET, NY 11733(631) 444-4686 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

On this page

About Dr. Natalie Semenyuk M.d. NPPES

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

DR. NATALIE SEMENYUK M.D. (NPI 1841232642) is an individual obstetrics & gynecology provider in East Setauket, New York, licensed in New York (230610) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and is a graduate of Other (1988).

NPPES Registry Identity

NPI1841232642

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameDR. NATALIE SEMENYUKCredential: M.D.

Location Address6 TECHNOLOGY DREast Setauket, NY 11733-4047

Mailing AddressPo Box 1559Stony Brook, NY 11790-0989 · (631) 444-4686

Phone(631) 444-4686

Sole ProprietorNo

Medical School CMSOtherGraduated 1988

Enumeration DateJune 13, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1841232642 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in NY · 230610

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

6 TECHNOLOGY DR, East Setauket, NY 11733

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Other Identifiers 3

Medicaid02510272NY

Other7244499NY · Aetna

Other677D11NY · Empire Bc.bs

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Natalie Semenyuk M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1254328222

PECOS Enrollment IDI20040429001578

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.

Areas of Expertise CMS Part B claims 5

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.

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830

An ultrasound scan of the lower abdominal region is a safe, non-invasive procedure that uses sound waves to create images of internal structures. This helps in checking the health of reproductive organs and detecting any abnormalities. The scan is done via a small probe inserted into the body.

29 services29 patients

3d radiographic procedure 76376

A 3D radiographic procedure is a non-invasive imaging test that helps doctors visualize the internal structures of your body in three dimensions. This advanced technology provides detailed images, aiding in accurate diagnosis and treatment planning. It involves exposure to minimal radiation.

24 services24 patients

Limited ultrasound scan of pelvis 76857

A limited ultrasound scan of the pelvis is a non-invasive imaging test. It uses high-frequency sound waves to create pictures of the lower abdomen area. This helps doctors view and assess the health of certain internal structures. It's painless and usually takes about 30 minutes.

24 services24 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.

23 services20 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

Hospital Affiliations CMS Care Compare

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

Montefiore Medical Center

Acute Care Hospitals · Bronx, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330059

Location111 East 210th StreetBronx, NY 10467 · Bronx County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11733 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.

100/100

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

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

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.

MS. ANN VISSER CNM

Advanced Practice Midwife