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Primary Care in Philadelphia, PA

Welcome to Ninth Street Internal Medicine

Patient Centered Medical Home Badge.

Ninth Street Internal Medicine has long been recognized for over 30 years as one of the premier primary care in the Delaware Valley. Our team of physicians, nurse practitioners and highly trained staff is dedicated to providing compassionate, personalized and attentive care for all of our patients. We strive to ensure that all patients receive the quality care they need based on the best scientific evidence for acute problems, chronic disease and disease prevention. As a result of our systematic emphasis on continuous quality improvement and patient safety, we were one of the first practices in the country to earn the highest level of recognition as a Patient Centered Medical Home by the National Committee for Quality Assurance.

Whether you are visiting us annually for your well-check, or you are coming in due to illness or a screening test, we have the trained physicians, nurses, medical assistants, and staff to meet your every healthcare need. Ninth Street Internal Medicine offers the Philadelphia community an unsurpassed patient experience in regards to accessible, affordable, quality primary care. Choose from over 12 healthcare providers at our central Philadelphia location.


MDVIP is a unique concierge program that is designed to provide a highly personalized approach to healthcare. This program has smaller patient panels, which allows for a more customized and individualized approach to wellness. With fewer patients to care for, MDVIP doctors are able to spend more time with each patient and provide them with the attention and support they need to achieve their health goals.

The MDVIP program focuses on preventive care and wellness, rather than just treating symptoms or illnesses as they arise. By working closely with patients to develop personalized wellness plans, MDVIP doctors can help patients to achieve and maintain optimal health over the long term.

Learn more about the MDVIP program

Have an Emergency? Call us First!

Emergencies Care on Evenings and Weekends

NSIM is committed to your needs no matter the day or time; we have after-hours access to a provider 24/7 available to you.  Please call the office and ask to speak to the provider on call.

Patient Reviews

5 Stars

May 21, 2024

Went it today after a medical issue arose of the weekend. I saw Ryan Gunderman (NP) and he was fantastic. He really Listened through my experience, explained his differential diagnosis process, and what he recommends the next steps are to confirm. He even went to confirm/discuss the plan with my usual provider (Amanda J, NP - she is also amazing). Overall great experience and felt very comfortable...

5 Stars

Apr 30, 2024

Pek Ieung is wonderful. Took her time with me and listened to my concerns and answered my questions. She’s very knowledgeable about medicine (I own a pharmacy ) . I left the office feeling like I found a great doctor !
5 Stars

Mar 20, 2024

I have been seeing Dr. Allan Crimm for over 30 years, and I have always been impressed with the care that he has given me. I even had my Mom see him, and she really liked him. My daughter is living in NY and she comes from NY to be seen in the practice. I highly recommend him.
5 Stars

Feb 28, 2024

When it comes to health, it’s important to find a place where you are comfortable to discuss your personal concerns. Dr. Michelle Flynn is knowledgeable and professional with a soft touch of a sister or friend that you can talk to. She will make sure all your concerns are addressed and will check on you via email to ensure everything is resolved. Checking in was convenient, if you are on time, w...

5 Stars

Feb 8, 2024

I love Dr Flynn! She is so caring and thorough and truly listens to my concerns. The office staff are always pleasant too. I highly recommend this practice for Primary Care. Thumbs UP.
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News & Events

Remembering Dr. David Major

It is with a heavy heart and profound sadness that we share the loss of our founding partner Dr. David Major. David Alan Major, MD. 84, died peacefully at home on September 9, 2023. He was a beloved husband, father, grandfather,

NSIM will be closed July 4th and 5th in observance of Independence Day.