NICHOLAS KARAMITSIOS MD
NPI 1326049669
Internal Medicine - Gastroenterology in Salem, MA

Q: What is Nicholas Karamitsios's NPI number?

The NPI number for Nicholas Karamitsios is 1326049669. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Q: What is Nicholas Karamitsios's specialty?

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

Active since August 09, 2005PECOS EnrolledAccepts Medicare Assignment

55 HIGHLAND AVE, STE 304, SALEM, MA 01970(978) 741-4171(978) 741-4283 Get Directions Write a Review

NPPES record last updated: April 14, 2009. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Nicholas Karamitsios Md NPPES

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

NICHOLAS KARAMITSIOS MD (NPI 1326049669) is an individual gastroenterology provider in Salem, Massachusetts, licensed in Massachusetts (81243) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Boston University School Of Medicine (1992).

NPPES Registry Identity

NPI1326049669

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameNICHOLAS KARAMITSIOSCredential: MD

Location Address55 HIGHLAND AVE, STE 304Salem, MA 01970-2100

Mailing Address340 Main St, Ste. 670Worcester, MA 01608-1604 · (508) 754-3566 · Fax (508) 798-8012

Phone(978) 741-4171

Fax(978) 741-4283

Sole ProprietorNo

Medical School CMSBoston University School Of MedicineGraduated 1992

Enumeration DateAugust 9, 2005

Last NPPES UpdateApril 14, 2009

✔ NPI 1326049669 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 MA · 81243

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.

55 HIGHLAND AVE, Salem, MA 01970

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Other Identifiers 3

Medicare ID-Type UnspecifiedA20242MA

Medicare UPING06648

Medicaid314660MA

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

Nicholas Karamitsios 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 ID9537177548

PECOS Enrollment IDI20060403000646

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 Reassignment

Medicare enrollment records show Nicholas Karamitsios reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mass General Brigham Medical Group Northern Massachusetts Inc

0.2 mi

Emergency Medicine

81 HIGHLAND AVE
Salem, MA 01970

Reassigned Medicare billing, Massachusetts enrollment
994 clinicians in this Medicare group

NPI 1588606123 (978) 354-4173

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 22

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.

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.

205 services204 patients

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.

105 services103 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.

61 services61 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

61 services61 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

43 services43 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.

40 services40 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.

35 services35 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

33 services33 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.

29 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.

27 services27 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

25 services25 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.

24 services24 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.

21 services20 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.

20 services20 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

15 services15 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

14 services14 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

12 services11 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

12 services12 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare 43251

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

11 services11 patients

Exam of common bile and/or pancreatic duct using a flexible endoscope 43273

This procedure, known as an ERCP, involves a flexible tube with a camera, called an endoscope, being gently passed down your throat to examine your common bile or pancreatic duct. It helps doctors diagnose and treat conditions affecting these areas.

11 services11 patients

Diagnostic exam of lower portion of large bowel using a flexible endoscope 45330

This procedure, known as a sigmoidoscopy, involves using a flexible tube with a camera to examine the lower part of your large bowel. It helps in identifying issues like inflammation, ulcers, or abnormal growths. It's a safe, minimally invasive procedure.

11 services11 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

North Shore Medical Center -

Acute Care Hospitals · Salem, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220035

Location81 Highland AvenueSalem, MA 01970 · Essex County

Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220071

Location55 Fruit StreetBoston, MA 02114 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01970 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

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$103.48 typical visit price

range $19.11 – $144.84

Typical copayment $25.87 (range $4.77 – $36.21)

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.

HEATHER BREEN NORE COUNSELING INTERN

Counselor (Mental Health)

55 HIGHLAND AVE
SALEM, MA 01970

Essex County (978) 573-4310

ANTOINE M SALVADOR MA

Student in an Organized Health Care Education/Training Program

55 HIGHLAND AVE, HIGHLAND HALL
SALEM, MA 01970

Essex County (978) 825-6685

RONALD C HARTFELDER MD

Internal Medicine (Gastroenterology)

55 HIGHLAND AVE, STE 304
SALEM, MA 01970

Essex County (978) 741-4171

DANIEL CARROLL HAGAN DO

Internal Medicine (Pulmonary Disease)

55 HIGHLAND AVE, SUITE 104
SALEM, MA 01970

Essex County (978) 745-4489

STEPHEN BRAUNINGER

Audiologist

55 HIGHLAND AVE, SUITE 201
SALEM, MA 01970

Essex County (978) 745-6601

SOUND CHOICE INC

Hearing Aid Equipment

55 HIGHLAND AVE, SUITE 201
SALEM, MA 01970

Essex County (978) 740-6699

JULIA MOSKOWITZ PSYD

Psychologist (Clinical)

55 HIGHLAND AVE, SUITE 201
SALEM, MA 01970

Essex County (978) 825-6620

DR. CHALINI JAYASEKERA PSYD

Psychologist (Clinical)

55 HIGHLAND AVE
SALEM, MA 01970

Essex County (978) 825-6677

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 Nicholas Karamitsios's NPI number?

The NPI number for Nicholas Karamitsios is 1326049669. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Where is Nicholas Karamitsios located?

Nicholas Karamitsios practices at 55 Highland Ave Ste 304, Salem, MA 01970. The listed phone number is (978) 741-4171.

What is Nicholas Karamitsios's specialty?

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

Is Nicholas Karamitsios enrolled in Medicare?

Yes. Nicholas Karamitsios 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 organization bills Medicare for Nicholas Karamitsios's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Karamitsios reassigns Medicare benefits to Mass General Brigham Medical Group Northern Massachusetts Inc (Salem, MA). The 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 Nicholas Karamitsios's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nicholas Karamitsios affiliated with any hospitals?

According to CMS data, Nicholas Karamitsios is affiliated with North Shore Medical Center - and Massachusetts General Hospital.

When was this NPI record last updated?

The NPPES record for Nicholas Karamitsios was last updated on April 14, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.