Daniel O'Leary, M.D.
Daniel O'Leary is an Internal Medicine specialist based in Leominster, MA with over 41 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Daniel O'Leary, M.D. has practiced internal medicine for 41+ years, working in group practice. He graduated from University of Massachusetts Medical School in 1985 and has 41+ years of clinical experience. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data). CMS MIPS quality score: 97.02/100 (2023).
At a glance
- Prescribes opioids less than 34% of reporting doctors in Massachusetts
- Uses generic medications more than 68% of reporting doctors in Massachusetts
- Federal MIPS score higher than 76% of MIPS-scored doctors in Massachusetts
- Virtual visits available — no app or travel required
Older · 4832dNPPES updated 2013-02-28 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine
Contact & Location
Practice Location
50 Memorial Drive Suite 205, Leominster, MA 01453
How Does This Doctor Compare?
Based on Medicare data, this doctor scores better than 76% of doctors in Massachusetts on federal quality measures, prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
MIPS Score
202397.02/100
Massachusetts avg: 87.4 · US avg: 83.6
✓ Higher than most doctors nationally(+13.4 pts)
Better than 76% of MIPS-scored doctors in MassachusettsHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better1.98%
Massachusetts avg: 4 · US avg: 5.1
✓ Higher than most doctors nationally(-3.1 pts)
1.98% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better90.5%
Massachusetts avg: 81.9 · US avg: 82.8
✓ Higher than most doctors nationally(+7.7 pts)
Typical range among reporting doctors in MassachusettsHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
754
Unique beneficiaries
High volumePrescription Recipients
1,127
Patients prescribed
Prescriptions Written
14,613
Total claims
Total Medicare drug cost: $1.24M
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.
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.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-1%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-7%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↑ More patients than average (+4%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-1%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-10%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
Patient Reviews
No patient reviews yet. If you've seen Daniel O'Leary, your feedback helps other patients.
Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →
Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1985
Umass Chan Medical School
41 years in practice
Senior practitioner
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
University of Massachusetts Medical School (Class of 1985)
Virtual Internal Medicine Care With Daniel O'Leary
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Daniel O'Leary for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Leominster 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 Daniel O'Leary
Dr. O'Leary is listed as active in the NPI registry with telehealth listed in Leominster, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (978) 534-4241.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
Is this your profile?
Verify credentials, update practice details, and manage telehealth.
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.
Contact Daniel O'Leary
Practice Location
50 Memorial Drive Suite 205, Leominster, MA 01453
Mailing Address
50 Memorial Drive Suite 205, Leominster, MA 01453
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers