CHRISTOPHER JOHN DIMAIO M.D.
NPI 1295930840
Internal Medicine - Gastroenterology in Greenlawn, NY

Q: What is Christopher Dimaio's NPI number?

The NPI number for Christopher Dimaio is 1295930840. It was assigned to this individual provider in the NPPES registry on June 15, 2007.

Q: What is Christopher Dimaio's specialty?

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

Active since June 15, 2007PECOS EnrolledAccepts Medicare Assignment

284 PULASKI RD, GREENLAWN, NY 11740(631) 470-1460 Get Directions Write a Review

NPPES record last updated: December 10, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Christopher John Dimaio M.d. NPPES

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

CHRISTOPHER JOHN DIMAIO M.D. (NPI 1295930840) is an individual gastroenterology provider in Greenlawn, New York, licensed in New York (232631) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Ns/lij Hs Huntington Hospital, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1295930840

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameCHRISTOPHER JOHN DIMAIOCredential: M.D.

Location Address284 PULASKI RDGreenlawn, NY 11740-1602

Mailing Address1 Gustave L.levy Place, Box 3000New York, NY 10029-6574 · (212) 987-3100 · Fax (212) 731-5210

Phone(631) 470-1460

Sole ProprietorYes

Medical School CMSOtherGraduated 2000

Enumeration DateJune 15, 2007

Last NPPES UpdateDecember 10, 2024

NPPES CertifiedDecember 10, 2024

✔ NPI 1295930840 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in NY · 232631

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.

284 PULASKI RD, Greenlawn, NY 11740

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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

Christopher John Dimaio 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 ID648177097

PECOS Enrollment IDI20080809000053

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

Chs Physician Partners, PC

10 mi

Cardiovascular Disease

206 FALLWOOD PKWY
Farmingdale, NY 11735

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

NPI 1750626974 (516) 249-1020

North Shore-Lij Medical PC

17 mi

Urology

1010 NORTHERN BLVD STE 110
Great Neck, NY 11021

Reassigned Medicare billing, New York enrollment
9,353 clinicians in this Medicare group

NPI 1053688572 (516) 321-7400

Icahn School Of Medicine At Mount Sinai

30 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

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 17

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.

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.

124 services124 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.

109 services99 patients

Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth 43237

This procedure involves a flexible tube with a camera and ultrasound device, inserted through the mouth to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like inflammation, tumors, or other abnormalities.

91 services88 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.

90 services47 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.

59 services59 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.

56 services54 patients

Review by radiologist of image from tube placement into bile duct using an endoscope 74328

This procedure involves a specialist, called a radiologist, examining an image taken during a tube placement into your bile duct. The tube is inserted with the help of a tool called an endoscope. This allows the doctor to check for any issues or abnormalities in your bile duct.

37 services29 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.

36 services32 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.

34 services31 patients

Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope 43238

An ultrasound guided needle aspiration or biopsy of the esophagus involves using a flexible tube with a camera (endoscope) to view your esophagus. An ultrasound device on the endoscope helps to guide a needle to take a small tissue sample for testing. This is a safe, minimally invasive procedure.

33 services32 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.

29 services29 patients

Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264

This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.

26 services24 patients

Removal of large bowel tissue using a flexible endoscope 45390

This procedure, known as a colonoscopy, involves using a flexible endoscope to examine and potentially remove tissue from the large intestine. The endoscope allows the doctor to view the bowel lining directly and remove any abnormal tissue for further analysis.

24 services24 patients

Insertion of stent into pancreatic or bile duct using a flexible endoscope 43274

This procedure involves the placement of a tiny tube, known as a stent, into your pancreatic or bile duct. A flexible endoscope, a long, thin instrument with a light and camera, is used. It aids in relieving blockages and improving flow in these ducts.

22 services15 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.

19 services19 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

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.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Ns/Lij Hs Huntington Hospital

Acute Care Hospitals · Huntington, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330045

Location270 Park AvenueHuntington, NY 11743 · Suffolk County

Emergency services Birthing friendly

North Shore University Hospital

Acute Care Hospitals · Manhasset, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330106

Location300 Community DriveManhasset, NY 11030 · Nassau County

Emergency services Birthing friendly

Long Island Jewish Medical Center

Acute Care Hospitals · New Hyde Park, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330195

Location270 - 05 76th AvenueNew Hyde Park, NY 11040 · Nassau County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11740 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

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

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.

KATHERINE MURPHY DO

Family Medicine