Kristin M O'Neil-Callahan, M.D.

Internal Medicine

Kristin M O'Neil-Callahan is an Internal Medicine specialist based in Peabody, MA with over 27 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(978) 532-2800Peabody, MA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Kristin M O'Neil-Callahan, M.D. has been part of the Peabody medical community since 2006 in group practice. A Georgetown University School of Medicine graduate since 1999, she brings 27+ years of experience. She regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).

At a glance

  • Uses generic medications more than 74% 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 Peabody27+ years experienceNPI since 2006

Older · 5463dNPPES updated 2011-06-08 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine

Contact & Location

Practice Location

2 Essex Dr Internal Medicine, Peabody, MA 01960-2902

Fax: (978) 977-4492
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.

Generic Rx

↑ Higher = better

91.6%

Massachusetts avg: 81.9 · US avg: 82.8

Higher than most doctors nationally(+8.8 pts)

Better than 74% of reporting doctors in Massachusetts

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

345

Unique beneficiaries

Standard volume

Prescription Recipients

452

Patients prescribed

Prescriptions Written

3,749

Total claims

Total Medicare drug cost: $239k

Percentile rankings compared against 1,606 reporting peers in Massachusetts.

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 High Cholesterol, Hypertension, and Arthritis.

High Cholesterol
Higher than avg (+4%)74%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+4%) — a focus area for this doctor

Hypertension
Lower than avg (-8%)62%

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

US avg: 70.2%

↓ Fewer patients than average (-8%) — less common here

Arthritis
Lower than avg (-1%)48%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-1%) — less common here

Anxiety Disorders
Lower than avg (-8%)26%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↓ Fewer patients than average (-8%) — less common here

Cancer
21%

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

US avg: 20.8%
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 · 1999

    Georgetown University School of Medicine

  2. 27 years in practice

    Experienced

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

Georgetown University School of Medicine (Class of 1999)

Practice Footprint

Mailing address

147 Milk St Provider Enrollment - 9th Floor, Boston, MA 02109-4806

Differs from practice location

Virtual Internal Medicine Care With Kristin M O'Neil-Callahan

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

Schedule a virtual visit with Kristin M O'Neil-Callahan for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Peabody 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 Kristin M O'Neil-Callahan

Dr. O'Neil-Callahan is listed as active in the NPI registry with telehealth listed in Peabody, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (978) 532-2800.

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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Claim Profile

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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