Mark Steven Pasternack, MD

Internal Medicine

(617) 726-5771Boston, MA
Telehealth Available
NPI Active per CMS — Q2 2026

Mark Steven Pasternack, MD has practiced internal medicine for 51+ years, working in group practice. He graduated from Harvard Medical School in 1975 and has 51+ years of clinical experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).

At a glance

  • Uses generic medications more than 64% of reporting doctors in Massachusetts
  • Virtual visits available — no app or travel required
1 of 1,755 Internal Medicine providers in MASee all Internal Medicine in Boston51+ years experienceNPI since 2006

Older · 5328dNPPES updated 2011-10-04 · verify on CMS

Contact & Location

Practice Location

15 Parkman St Wac 612, Boston, MA 02114-3117

Fax: (617) 726-5411
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 High Cholesterol, Hypertension, and Arthritis.

High Cholesterol
Higher than avg (+1%)71%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+1%) — a focus area for this doctor

Hypertension
Lower than avg (-2%)68%

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

US avg: 70.2%

↓ Fewer patients than average (-2%) — less common here

Arthritis
Lower than avg (-12%)37%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-12%) — less common here

Ischemic Heart Disease
32%

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

US avg: 31.7%
Mood Disorders
26%

Conditions affecting emotional state, including depression and bipolar disorder

Diabetes
Lower than avg (-9%)25%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-9%) — less common here

Depression
Lower than avg (-7%)25%

A mood disorder causing persistent sadness and loss of interest in activities

US avg: 31.8%

↓ Fewer patients than average (-7%) — less common here

Cancer
Higher than avg (+2%)23%

Diseases involving abnormal cell growth with potential to spread to other body parts

US avg: 20.8%

↑ More patients than average (+2%) — a focus area for this doctor

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 · 1975

    Harvard Medical School

  2. 51 years in practice

    Senior practitioner

Internal MedicineAllopathic & Osteopathic Physicians

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.

Taxonomy: 207R00000X

Education & Training

Harvard Medical School (Class of 1975)

Practice Footprint

Mailing address

Po Box 9142 Mass General Physician Organization, Charlestown, MA 02129-9142

Differs from practice location

Virtual Internal Medicine Care With Mark Steven Pasternack

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

Schedule a virtual visit with Mark Steven Pasternack for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Boston required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Mark Steven Pasternack

Dr. Pasternack 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) 726-5771.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · 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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