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DR. MICHAEL WILLIAM DEMPSEY M.D.
NPI 1770508079
Internal Medicine in Riverhead, NY

Active since July 13, 2006
1190 OLD COUNTRY RD, RIVERHEAD, NY 11901(631) 727-1818(631) 727-7365 Get Directions Write a Review

NPPES record last updated: December 28, 2011. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Michael William Dempsey M.d. NPPES

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

DR. MICHAEL WILLIAM DEMPSEY M.D. (NPI 1770508079) is an individual internal medicine provider in Riverhead, New York, licensed in New York (130241) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1770508079
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MICHAEL WILLIAM DEMPSEYCredential: M.D.
Location Address1190 OLD COUNTRY RDRiverhead, NY 11901-4450
Mailing Address1190 Old Country RdRiverhead, NY 11901-4450 · (631) 727-1818 · Fax (631) 727-7365
Phone(631) 727-1818
Fax(631) 727-7365
Sole ProprietorYes
Enumeration DateJuly 13, 2006
Last NPPES UpdateDecember 28, 2011
✔ NPI 1770508079 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 130241
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

1190 OLD COUNTRY RD, Riverhead, NY 11901
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Other Identifiers 3

Medicare ID-Type Unspecified319781NY
Medicare UPINB12892NY
Medicaid00417029NY

Areas of Expertise CMS Part B claims 8

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, 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.
310 services243 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
267 services238 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.
97 services90 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
81 services81 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
73 services72 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.
66 services65 patients

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.

M.W.D., INC
Internal Medicine
1190 OLD COUNTRY RD
RIVERHEAD, NY 11901
Suffolk County (631) 727-1818
JANET LYNNE BALDASARE NP
Nurse Practitioner (Adult Health)
1190 OLD COUNTRY RD
RIVERHEAD, NY 11901
Suffolk County (631) 727-1818

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 Michael Dempsey's NPI number?

The NPI number for Michael Dempsey is 1770508079. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is Michael Dempsey located?

Michael Dempsey practices at 1190 Old Country Rd, Riverhead, NY 11901. The listed phone number is (631) 727-1818.

What is Michael Dempsey's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Michael Dempsey was last updated on December 28, 2011. NPI Profile syncs with the weekly NPPES data releases published by CMS.