DR. DAVID SCOTT GIDSEG M.D.
NPI 1225299712
Specialist in Smithtown, NY

Q: What is David Gidseg's NPI number?

The NPI number for David Gidseg is 1225299712. It was assigned to this individual provider in the NPPES registry on June 18, 2008.

Q: What is David Gidseg's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for David Gidseg was last updated on March 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 18, 2008PECOS EnrolledAccepts Medicare Assignment

260 MIDDLE COUNTRY RD., SUITE 214, SMITHTOWN, NY 11787(631) 265-5050(631) 265-3304 Get Directions Write a Review

NPPES record last updated: March 30, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. David Scott Gidseg M.d. NPPES

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

DR. DAVID SCOTT GIDSEG M.D. (NPI 1225299712) is an individual specialist in Smithtown, New York and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Hospital Medical Center, and is a graduate of Js Weill Medical College, Cornell University (2003).

NPPES Registry Identity

NPI1225299712

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameDR. DAVID SCOTT GIDSEGCredential: M.D.

Location Address260 MIDDLE COUNTRY RD., SUITE 214Smithtown, NY 11787-2925

Mailing Address260 Middle Country Rd., Suite 214Smithtown, NY 11787-2925 · (631) 265-5050 · Fax (631) 265-3304

Phone(631) 265-5050

Fax(631) 265-3304

Sole ProprietorNo

Medical School CMSJs Weill Medical College, Cornell UniversityGraduated 2003

Enumeration DateJune 18, 2008

Last NPPES UpdateMarch 30, 2016

✔ NPI 1225299712 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 234439 (NY)

260 MIDDLE COUNTRY RD., Smithtown, NY 11787

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Other Identifiers 2

Medicare PINA400020409NY

Medicaid03159771NY

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. David Scott Gidseg 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 ID8628119237

PECOS Enrollment IDI20100105000246

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 David Gidseg reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Chs Physician Partners, P.C

9.9 mi

Family Medicine

213 MONTAUK HWY
West Sayville, NY 11796

Reassigned Medicare billing, New York enrollment
Medicare enrollment name: Chs Physician Partners PC
944 clinicians in this Medicare group

NPI 1679823512 (631) 563-6205

Cardiac Ekg Interpretation, P. C.

13 mi

Cardiovascular Disease

1000 MONTAUK HWY
West Islip, NY 11795

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

NPI 1386665644 (631) 376-3000

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 24

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.

2,822 services1,330 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.

2,276 services1,346 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.

1,772 services440 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.

1,240 services1,177 patients

Technetium tc-99m tetrofosmin, diagnostic, per study dose A9502

Technetium Tc-99m Tetrofosmin is a radiopharmaceutical used in diagnostic imaging. It helps highlight areas of concern in the heart by emitting signals captured by a special camera. This assists doctors in detecting heart conditions.

1,106 services551 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

578 services575 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.

570 services565 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

447 services367 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.

217 services181 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.

144 services144 patients

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.

125 services98 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.

120 services119 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.

98 services49 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.

86 services85 patients

Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report 93351

This procedure involves using ultrasound technology to create images of your heart while you rest, exercise, or undergo drug-induced stress. An ECG continuously monitors your heart's electrical activity. It helps doctors assess heart health and function.

75 services75 patients

Technetium tc-99m sestamibi, diagnostic, per study dose A9500

Technetium Tc-99m Sestamibi is a diagnostic test used to create images of your heart or breast tissues. It involves a safe radioactive substance injection that helps doctors to detect any abnormalities or changes in these tissues.

58 services29 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

45 services45 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

36 services36 patients

Complete ultrasound study of arm and leg arteries 93923

This procedure involves using sound waves to produce images of your arm and leg arteries. It helps identify blockages or abnormalities that could lead to conditions like stroke or peripheral artery disease. It's non-invasive and painless.

26 services25 patients

Injection, dobutamine hydrochloride, per 250 mg J1250

Dobutamine hydrochloride is a medication that is injected into the body to improve heart function. It helps the heart pump blood more efficiently, which can be beneficial for conditions like heart failure or after a heart attack. It is administered per 250 mg dosage.

22 services22 patients

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

20 services20 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

19 services19 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) 93017

An exercise or drug-induced heart stress test with an ECG checks how your heart responds to stress. You'll either exercise on a treadmill or be given medication to stress your heart. An ECG then captures your heart's activity, helping detect any issues.

19 services19 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.

16 services16 patients

Hospital Affiliations CMS Care Compare 2

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

Good Samaritan Hospital Medical Center

Acute Care Hospitals · West Islip, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330286

Location1000 Montauk HighwayWest Islip, NY 11795 · Suffolk County

Emergency services Birthing friendly

St Catherine Of Siena Hospital Medical Center

Acute Care Hospitals · Smithtown, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330401

Location50 Route 25ASmithtown, NY 11787 · Suffolk County

Emergency services Birthing friendly

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.

LORETTA GEORGE F.N.P

Nurse Practitioner (Family)

260 MIDDLE COUNTRY RD., SUITE 214
SMITHTOWN, NY 11787

Suffolk County (631) 265-5050

DR. MICHAEL C. HAPPES MD

Specialist

260 MIDDLE COUNTRY RD., SUITE 214
SMITHTOWN, NY 11787

Suffolk County (631) 265-5050

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 David Gidseg's NPI number?

The NPI number for David Gidseg is 1225299712. It was assigned to this individual provider in the NPPES registry on June 18, 2008.

Where is David Gidseg located?

David Gidseg practices at 260 Middle Country Rd. Suite 214, Smithtown, NY 11787. The listed phone number is (631) 265-5050.

What is David Gidseg's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is David Gidseg enrolled in Medicare?

Yes. David Gidseg 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 David Gidseg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Gidseg reassigns Medicare benefits to 2 organizations: Chs Physician Partners, P.C (West Sayville, NY) and Cardiac Ekg Interpretation, P. C. (West Islip, 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 David Gidseg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is David Gidseg affiliated with any hospitals?

According to CMS data, David Gidseg is affiliated with Good Samaritan Hospital Medical Center and St Catherine Of Siena Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for David Gidseg was last updated on March 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.