JENNIFER DALE MARSHAK MD
NPI 1750365912
Obstetrics & Gynecology in Port Jefferson, NY

Active since December 01, 2005PECOS EnrolledAccepts Medicare Assignment
99.15/100
CMS Quality Rating
118 N COUNTRY RD, PORT JEFFERSON, NY 11777(631) 473-7171(631) 473-4605 Get Directions Write a Review

NPPES record last updated: April 24, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Jennifer Dale Marshak Md NPPES

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

JENNIFER DALE MARSHAK MD (NPI 1750365912) is an individual obstetrics & gynecology provider in Port Jefferson, New York, licensed in New York (211465) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with Long Island Community Hospital, and is a graduate of Duke University School Of Medicine (1996).

NPPES Registry Identity

NPI1750365912
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameJENNIFER DALE MARSHAKCredential: MD
Location Address118 N COUNTRY RDPort Jefferson, NY 11777-2120
Mailing Address118 N Country RdPort Jefferson, NY 11777-2120 · (631) 473-7171 · Fax (631) 473-4605
Fax(631) 473-4605
Sole ProprietorNo
Medical School CMSDuke University School Of MedicineGraduated 1996
Enumeration DateDecember 1, 2005
Last NPPES UpdateApril 24, 2008
NPI 1750365912 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 · 211465
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.

118 N COUNTRY RD, Port Jefferson, NY 11777

Other Identifiers 2

Medicare PINJM061N981NY
Medicare UPINH21226

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

Jennifer Dale Marshak 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 ID5092758771
PECOS Enrollment IDI20060330000493
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 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, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
1,260 services21 patients
Established patient office or other outpatient visit, 30-39 minutes 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.
373 services315 patients
Established patient office or other outpatient visit, 20-29 minutes 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.
97 services81 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
95 services95 patients
Dxa bone density measurement of hip, pelvis, spine 77080
A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.
84 services84 patients
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.
60 services52 patients

Hospital Affiliations CMS Care Compare 3

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

Long Island Community Hospital

Acute Care Hospitals · Patchogue, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330141
Location101 Hospital RoadPatchogue, NY 11772 · Suffolk County
Emergency services

John T Mather Memorial Hospital Of Port Jefferson

Acute Care Hospitals · Port Jefferson, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330185
Location75 North Country RoadPort Jefferson, NY 11777 · Suffolk County
Emergency services

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY
4/5 CMS rating
OwnershipGovernment - State
CMS Certification Number330393
LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11777 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.

99.15/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability99
Improvement Activities40

Other Providers at the Same Location NPPES 17

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

Obstetrics & Gynecology
118 N COUNTRY RD
PORT JEFFERSON, NY 11777
Obstetrics & Gynecology
118 N COUNTRY RD
PORT JEFFERSON, NY 11777
Nurse Practitioner (Obstetrics & Gynecology)
118 N COUNTRY RD
PORT JEFFERSON, NY 11777
Obstetrics & Gynecology (Gynecology)
118 N COUNTRY RD
PORT JEFFERSON, NY 11777
Obstetrics & Gynecology
118 N COUNTRY RD
PORT JEFFERSON, NY 11777
Obstetrics & Gynecology
118 N COUNTRY RD
PORT JEFFERSON, NY 11777
Obstetrics & Gynecology (Gynecology)
118 N COUNTRY RD
PORT JEFFERSON, NY 11777
Obstetrics & Gynecology (Gynecology)
118 N COUNTRY RD
PORT JEFFERSON, NY 11777

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 Jennifer Marshak's NPI number?

The NPI number for Jennifer Marshak is 1750365912. It was assigned to this individual provider in the NPPES registry on December 1, 2005.

Where is Jennifer Marshak located?

Jennifer Marshak practices at 118 N Country Rd, Port Jefferson, NY 11777. The listed phone number is (631) 473-7171.

What is Jennifer Marshak's specialty?

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

Is Jennifer Marshak enrolled in Medicare?

Yes. Jennifer Marshak 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.

Is Jennifer Marshak affiliated with any hospitals?

According to CMS data, Jennifer Marshak is affiliated with Long Island Community Hospital, John T Mather Memorial Hospital Of Port Jefferson and Suny/Stony Brook University Hospital.

When was this NPI record last updated?

The NPPES record for Jennifer Marshak was last updated on April 24, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.