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Physician Assistant Specialists
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Medicare + 7 Networks
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About Karen N. Belleh
Background and practice information
Karen N. Belleh is a physician assistant with over 5 years of clinical experience serving patients in the Commack, NY area. She completed her medical training at Other and has been in practice since 2021. She currently practices at Mskcc Regional Network.
Karen N. Belleh's clinical practice focuses on treating patients with low potassium levels, inflammation and certain cancers, nausea and vomiting, and related conditions.
Karen N. Belleh has received a strong quality rating of 87.4 out of 100 from Medicare's quality assessment program, reflecting a commitment to evidence-based care. Karen N. Belleh is in-network with 7 insurance providers, including Aetna, Cigna, EmblemHealth, and 4 more. Patients are encouraged to verify coverage with her office before scheduling an appointment.
At a Glance
Education
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Claim this profilePractice Locations
1 location
Mskcc Regional Network
Primary650 Commack Rd
Commack, NY 11725
(631) 623-4034
Treatment & Experience
Clinical practice and procedure experience for Karen N. Belleh
Services & Procedures
Karen N. Belleh's clinical practice encompasses office visits.
Office Visits
713 servicesKaren N. Belleh provides patient consultations ranging from routine follow-ups to comprehensive evaluations, with follow-up visit being a key part of her practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 87% below the billed amount.
Treatment Approach
Karen N. Belleh's treatment approach includes prescribing Potassium Chloride, Dexamethasone, Ondansetron Hcl for her patients. These medications are commonly used for treating low potassium levels, inflammation and certain cancers, nausea and vomiting. This prescribing pattern is consistent with a focused practice in physician assistant.
Source: CMS Medicare Provider Utilization and Payment Data, 2023.
Insurance Networks
Accepted insurance plans and networks
Karen N. Belleh accepts 44 plans from 7 insurers, including Cigna, UnitedHealthcare, Aetna.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Safety
CMS quality performance and patient safety measures
High Performing
CMS Quality Score · Out of 100
Dr. Belleh received a quality score of 87.4 out of 100 from the Centers for Medicare & Medicaid Services (CMS), which evaluates physician assistants on clinical quality, patient safety, and use of health information technology. A score above 75 is considered high-performing by CMS standards. This score reflects Dr. Belleh's commitment to maintaining strong standards of care for patients in Commack, NY.
Clinical Quality
80.8/100Measures the quality of care provided based on clinical outcomes and patient safety
Care Improvement
40.0/40Reflects participation in activities that improve clinical practice and patient engagement
Source: CMS Merit-based Incentive Payment System
Financial Transparency
Industry payment disclosures
Pharmaceutical and medical device companies disclosed $222 in payments to Karen N. Belleh in 2024, primarily from Daiichi Sankyo Inc. for food and beverage. These disclosures are required by federal law under the Physician Payments Sunshine Act.
Top Paying Companies
Source: CMS Open Payments, 2024.
Patient Reviews
Reviews and ratings from patients
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About Physician Assistant
Specialty overview and common conditions
A Physician Assistant (PA) is a licensed medical professional who practices medicine as part of a healthcare team. PAs diagnose illnesses, develop and manage treatment plans, prescribe medications, perform procedures, assist in surgery, and provide comprehensive patient care across all medical speci...
Common conditions treated by physician assistant specialists:
- Diabetes Management
- Hypertension (High Blood Pressure)
- Musculoskeletal Injuries
- Respiratory Infections
Frequently Asked Questions
Common questions about Karen N. Belleh
Does Belleh accept Medicare?
Yes, Belleh accepts Medicare assignment. Patients with Medicare coverage can see Belleh and typically pay less out of pocket when using a provider who accepts Medicare assignment.
What insurance does Belleh accept?
Belleh is in-network with 7 insurance providers, including Aetna, Cigna, EmblemHealth, Medicare, Oxford Health Plans (UHC), and 2 more. Insurance networks can change, so patients should verify their specific plan coverage directly with Belleh's office before scheduling.
Does Belleh offer telehealth or virtual appointments?
Yes, Belleh offers telehealth services, allowing patients to have virtual consultations from the comfort of their home. Contact the office to schedule a telehealth appointment.
What conditions does Belleh treat?
As a physician assistant specialist, Belleh commonly treats conditions including diabetes management, hypertension (high blood pressure), musculoskeletal injuries, respiratory infections, wound care and lacerations, and other related health concerns. Contact the office to discuss your specific healthcare needs.
What medications does Belleh commonly prescribe?
Based on Medicare prescribing data, Belleh commonly prescribes medications including Potassium Chloride, Dexamethasone, Ondansetron Hcl. The specific medications prescribed depend on each patient's individual diagnosis and health needs. Patients should discuss treatment options directly with Belleh during their consultation.
What is Belleh's quality rating?
Belleh has received a strong quality score of 87.4 out of 100 from the Centers for Medicare & Medicaid Services (CMS) through the Merit-based Incentive Payment System (MIPS). This score reflects performance across quality measures, promoting interoperability, improvement activities, and cost efficiency.
Where did Belleh go to medical school?
Belleh completed medical training at Other and has been practicing since 2021, bringing over 5 years of clinical experience.
Where is Belleh's office located?
Belleh practices at 650 COMMACK RD, Commack, NY 11725 at MSKCC REGIONAL NETWORK. You can reach the office by calling (631) 623-4034.
How do I make an appointment with Belleh?
To schedule an appointment with Belleh, call the office at (631) 623-4034. New patients should have their insurance information and medical records ready when calling.
Data source: CMS National Provider Registry ·
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Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Learn more about our editorial standards