Sahar Nissim

Gastroenterology Internal Medicine

Sahar Nissim is a Gastroenterology Internal Medicine specialist based in Boston, MA with over 19 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(617) 525-6841Boston, MA
Telehealth Available
NPI Active per CMS — Q3 2026|Medicare Enrolled|Order & Refer

Sahar Nissim practices as part of a group gastroenterologist practice in Boston, MA. Trained at Harvard Medical School (class of 2007), he has been practicing for over 19 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data).

1 of 261 Internal Medicine providers in MASee all Internal Medicine in Boston19+ years experienceNPI since 2007

Older · 4396dNPPES updated 2014-08-25 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine

Contact & Location

Practice Location

75 Francis St, Boston, MA 02115-6110

CMS Clinical Data

How Does This Doctor Compare?

Medicare Patients

68

Unique beneficiaries

Standard volume

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.

Hypertension
75%

High blood pressure — a leading risk factor for heart disease and stroke

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Arthritis
53%

Joint inflammation causing pain, swelling, and stiffness

Ischemic Heart Disease
47%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Anxiety Disorders
43%

Excessive worry or fear that interferes with daily life

Diabetes
38%

A condition where the body cannot properly regulate blood sugar levels

Chronic Kidney Disease
38%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

Atrial Fibrillation
37%

An irregular, often rapid heartbeat that increases the risk of stroke

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2007

    Harvard Medical School

  2. 19 years in practice

    Experienced

Internal MedicineAllopathic & Osteopathic Physicians

Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.

Taxonomy: 207RG0100X

Education & Training

Harvard Medical School (Class of 2007)

Practice Footprint

Mailing address

2 Saint Paul St Apt 308, Brookline, MA 02446-6580

Differs from practice location

Virtual Internal Medicine Care With Sahar Nissim

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Sahar Nissim for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Boston required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Sahar Nissim

Dr. Nissim is listed as active in the NPI registry with telehealth listed in Boston, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (617) 525-6841.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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