Mary Kathleen O'Keeffe, M.D.

Hematology & Oncology

Internal Medicine

Mary Kathleen O'Keeffe is a Hematology & Oncology specialist based in Mineola, NY with over 20 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(516) 663-9500Mineola, NY
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Patients across NY can see Mary Kathleen O'Keeffe, M.D. in person in Mineola or via virtual visit — no travel required. With 20+ years of experience, she has been practicing in the Mineola area. Among her Medicare patients, common conditions include hypertension, high cholesterol, and cancer (per CMS data). CMS MIPS quality score: 84.47/100 (2023).

At a glance

  • Prescribes opioids less than 20% of reporting doctors in New York
  • Federal MIPS score higher than 24% of MIPS-scored doctors in New York
  • Virtual visits available — no app or travel required
1 of 440 Internal Medicine providers in NYSee all Internal Medicine in Mineola20+ years experienceNPI since 2012

Older · 1900dNPPES updated 2021-03-10 · verify NPI on CMS · Verify license at New York State Board for Medicine

Contact & Location

Practice Location

200 Old Country Rd Suite 450, Mineola, NY 11501-4235

Fax: (516) 663-4613
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor prescribes opioid pain medications conservatively.

MIPS Score

2023

84.47/100

New York avg: 87 · US avg: 83.6

Higher than most doctors nationally(+0.9 pts)

How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.

Opioid Rx

↓ Lower = better

2.83%

New York avg: 3.5 · US avg: 5.1

Higher than most doctors nationally(-2.3 pts)

2.83% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Generic Rx

↑ Higher = better

53.2%

New York avg: 82 · US avg: 82.8

Lower than most doctors nationally(-29.6 pts)

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

Medicare Patients

371

Unique beneficiaries

Standard volume

Prescription Recipients

173

Patients prescribed

Prescriptions Written

1,203

Total claims

Total Medicare drug cost: $8.09M

Percentile rankings compared against 8,064 reporting peers in New York.

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 Cancer.

Hypertension
Higher than avg (+5%)75%

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

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Cancer
Higher than avg (+53%)74%

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

US avg: 20.8%

↑ More patients than average (+53%) — a focus area for this doctor

Arthritis
Higher than avg (+5%)54%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+5%) — a focus area for this doctor

Ischemic Heart Disease
Higher than avg (+15%)47%

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

US avg: 31.7%

↑ More patients than average (+15%) — a focus area for this doctor

Chronic Kidney Disease
Higher than avg (+13%)43%

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

US avg: 29.6%

↑ More patients than average (+13%) — a focus area for this doctor

Diabetes
Higher than avg (+4%)38%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

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

COPD
Higher than avg (+8%)28%

Chronic Obstructive Pulmonary Disease — a group of lung diseases that block airflow

US avg: 20.4%

↑ More patients than average (+8%) — a focus area for this doctor

GeneralBehavioralNational avg

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

Industry Payment Transparency

$16 received from industry

1 transaction reported in 2024 ·Low tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Mary Kathleen O'Keeffe's NPI.

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Background & Specialty

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

Career Journey
  1. Board certified · Mar 9, 2021

    Self-reported via NPPES

  2. 20 years in practice

    Experienced

Internal MedicineHematology & Oncology in MineolaAllopathic & Osteopathic Physicians

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Taxonomy: 207RH0003X

Practice Footprint

Mailing address

200 0ld Country Road 450, Mineola, NY 11501

Differs from practice location

Virtual Hematology & Oncology Care With Mary Kathleen O'Keeffe

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

Schedule a virtual visit with Mary Kathleen O'Keeffe for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Mineola 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 Mary Kathleen O'Keeffe

Dr. O'Keeffe is listed as active in the NPI registry with telehealth listed in Mineola, NY. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (516) 663-9500.

Verified across 6 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · 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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