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Cathy Lynn Singer, NP

Cathy Lynn Singer, NP

Optum Provider

Specialty

Internal Medicine

Languages

English

Seeing patients at

Monday 8:00 AM - 4:30 PM
Tuesday 8:00 AM - 4:30 PM
Wednesday 8:00 AM - 4:30 PM
Thursday 8:00 AM - 4:30 PM
Friday 8:00 AM - 4:30 PM
Saturday 8:00 AM - 1:00 PM
Sunday Closed
Hours may vary, please contact to schedule and confirm appointment availability.

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.9

32 reviews

    • Reviewed on May 23, 2026
    • Verified Review

    She is an active listener, she truly shows that she cares for her patients and want the best for them

    • Reviewed on May 18, 2026
    • Verified Review

    Cathy Singer NP is excellent at what she does. I'm a retired RN and appreciate what she brings in her role as my medical provider. She's extremely professional, caring, and truly listens to her patients. She's a good diagnostician and thinks outside the box.

    • Reviewed on May 14, 2026
    • Verified Review

    Cathy is the best health care person I have ever had. She is knowledgeable, explains everything in understandable detail, very considerate and patient. She listens to everything that you tell her and listens to all questions asked.

    • Reviewed on May 14, 2026
    • Verified Review

    Caring, compassionate, understanding, listens,calm and such a pleasure to deal with

    • Reviewed on May 11, 2026
    • Verified Review

    Cathy Singer provides outstanding medical care. She is extremely knowledgeable and caring, and has great interpersonal skills. She allows time for the patient to ask questions and answers them in an easy-to-understand manner. She provides excellent follow-up on the patient portal, reviewing lab results, and gives helpful suggestions on how to improve my health. She exemplifies what a health care provider should be!

    • Reviewed on May 5, 2026
    • Verified Review

    Very knowledgeable, patient, and caring. Was able to relate yet not overstep. Genuine.

    • Reviewed on Apr 30, 2026
    • Verified Review

    Overall impressions. Great follow up to the bloods and reviews them in total . Tells me right from wrong

    • Reviewed on Apr 28, 2026
    • Verified Review

    I always recommend Cathy. She is so smart, caring and helpful. She goes above and beyond.

    • Reviewed on Apr 13, 2026
    • Verified Review

    Cathy is easy to talk to, she answers any questions i have. She is caring, and understands my issues

    • Reviewed on Apr 7, 2026
    • Verified Review

    Very caring and very through with her examination. She is very knowledgeable in all areas.

    • Reviewed on Mar 22, 2026
    • Verified Review

    She is very nice and thorough

    • Reviewed on Feb 19, 2026
    • Verified Review

    Cathy singer is a highly professional.. thorough provider who balances these qualifications with her compassionate and caring mannerisms.. In her care.. you feel that all will be well!!

    • Reviewed on Feb 14, 2026
    • Verified Review

    Cathy Singer is extremely professional, knowledgeable, compassionate and genuinely concerned about the care she is providing!

    • Reviewed on Feb 13, 2026
    • Verified Review

    Her patient care

    • Reviewed on Feb 9, 2026
    • Verified Review

    Cathy is a very caring person. She goes over everything with me.

    • Reviewed on Jan 21, 2026
    • Verified Review

    Listens to your concerns!

    • Reviewed on Jan 14, 2026
    • Verified Review

    very caring and knows what she is talking about

    • Reviewed on Jan 8, 2026
    • Verified Review

    Cathy Singer provided one of the best medical encounters I have ever had. She listened to my medical history, which includes multiple health issues. She took time to understand my medical conditions and provided valuable insights into what can be done to manage each condition. She showed compassion and caring. She possesses an extensive knowledge of medicine and has a great ability to communicate with patients. She helped ensure that all my medications were refilled properly and promptly responded to a need for a drug preauthorization. I feel very grateful to have found such a wonderful nurse practitioner.

    • Reviewed on Dec 27, 2025
    • Verified Review

    She is an excellent care provider

    • Reviewed on Dec 27, 2025
    • Verified Review

    She is absolutely wonderful and always listens to me and walks me through any questions I may have. Her compassion level is off the charts

Page 1 of 2
  • About Cathy Lynn Singer, NP

    Cathy Lynn Singer is a nurse practitioner specializing in internal medicine. She provides comprehensive evaluations and personalized treatment plans for adult patients.

    Philosophy of care

    Cathy Singer emphasizes patient education and clear communication to support confident decision-making.

    Gender

    Female

    Board certifications

    American Academy of Nurse Practitioner Certification Board

    Licenses

    NY, 308852

    Employed or contracted

    Employed

    Network Name

    ProHealth

    NPI

    1295214682

  • Insurance Accepted

    This list is for informational purposes only and may not reflect the most current plans accepted by the provider. Optum accepts most major health insurance plans. Please contact your insurance company to confirm your coverage, eligibility, and the provider's participation in your plan.

    • 1199
    • Aetna
    • Affinity
    • Anthem BCBS
    • CHN
    • Centivo
    • Cigna
    • Coventry
    • EmblemHealth
    • First Health
    • Humana
    • MagnaCare
    • Medicaid
    • Medicare
    • MultiPlan
    • NYSHIP
    • Northwell Direct
    • Oscar
    • Oxford
    • TRICARE
    • UHC
    • UMR
  • Medical School

    • State University Of New York At Stony Brook