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Dr. Andrew Mermelstein, MD

East Norriton, PA

25 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Mermelstein, Rheumatologist in East Norriton, PA?

    Dr. Andrew Mermelstein, MD is a Rheumatologist, who primarily practices in East Norriton, PA with 2 additional practice locations. He has been practicing for over 25 years and is board certified. Dr. Mermelstein completed his residency at Univ Of Pa Hlth System, Rheumatology; Univ Of Pa Hlth System, Allergy And Immunology; Univ Of Pa Hlth System, Internal Medicine. Dr. Mermelstein is fluent in English and Spanish, and is currently seeing new patients. Dr. Mermelstein’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mermelstein’s office.

    What are Areas of Expertise for Dr. Mermelstein?

    Dr. Andrew Mermelstein, MD is a highly-rated, board-certified Rheumatologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Mermelstein empowers patients to confidently navigate their health journey, specializing in Arthritis, Clinical Trials, or comprehensive wellness support. Serving the East Norriton/PA community, Dr. Mermelstein is dedicated to enhancing lives through expert, patient-centered care.

    Where did Dr. Mermelstein go to medical school and complete their residency?

    • Residency: Univ Of Pa Hlth System, Rheumatology; Univ Of Pa Hlth System, Allergy And Immunology; Univ Of Pa Hlth System, Internal Medicine | University Of Pa Health System

    • Medical School: New York Univ Sch of Med, New York Ny

    Is Dr. Mermelstein board certified as a Rheumatologist?

    Yes, Dr. Andrew Mermelstein, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Mermelstein speak?

    Dr. Mermelstein and their clinical team can communicate with patients in the following languages:

    • English

    • Spanish

    What conditions does Dr. Mermelstein treat?

    As a Rheumatologist, Dr. Mermelstein diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Mermelstein. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.

    Also known as:

    • Age-Related Osteoporosis
    • Fractures
    • Osteoporosis
    • Senile Osteoporosis
    • Primary Osteoporosis
    • Bone Thinning from Aging

    ICD-10 Codes:

    • M810: Age-related osteoporosis without current pathological fracture

    Also known as:

    • Rheumatoid Arthritis
    • RA
    • Chronic inflammatory arthritis
    • Autoimmune arthritis
    • Inflammatory joint disease
    • Chronic Inflammatory Arthritis
    • Autoimmune Arthritis

    ICD-10 Codes:

    • M0579: Rheumatoid arthritis with rheumatoid factor of multiple sites without organ or systems involvement
    • M0609: Rheumatoid arthritis without rheumatoid factor, multiple sites
    • M0689: Other specified rheumatoid arthritis, multiple sites

    Also known as:

    • Other Psoriatic Arthritis
    • Psoriatic arthritis
    • Psoriasis
    • Atypical psoriatic arthritis
    • Psoriasis-related joint condition
    • Unspecified psoriatic arthropathy

    ICD-10 Codes:

    • L4059: Other psoriatic arthropathy

    Also known as:

    • Osteoporosis Screening
    • Health Screening
    • Bone Density Test
    • Bone Health Screening
    • DEXA Scan

    ICD-10 Codes:

    • Z13820: Encounter for screening for osteoporosis

    Also known as:

    • Gout in multiple joints
    • Gout
    • Gouty Arthritis
    • Metabolic Arthritis
    • Uric Acid Arthritis

    ICD-10 Codes:

    • M1A09X0: Idiopathic chronic gout, multiple sites, without tophus (tophi)

    Also known as:

    • Fibromyalgia
    • Widespread pain syndrome
    • Chronic muscle pain
    • Fibromyositis

    ICD-10 Codes:

    • M797: Fibromyalgia

    What procedures does Dr. Mermelstein perform?

    As a Rheumatologist, Dr. Mermelstein performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Mermelstein. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.

    Also known as:

    • Joint or Bursa Injection/Fluid Removal
    • Arthrocentesis
    • Major Joint Aspiration
    • Bursa Injection
    • Joint Fluid Removal

    CPT Codes:

    • 20610: Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa); without ultrasound guidance

    Also known as:

    • Small Joint or Bursa Injection/Aspiration
    • Joint Tap
    • Bursa Fluid Removal
    • Small Joint Injection
    • Arthrocentesis

    CPT Codes:

    • 20600: Arthrocentesis, aspiration and/or injection, small joint or bursa (eg, fingers, toes); without ultrasound guidance

    Does Dr. Mermelstein accept my insurance?

    Dr. Mermelstein accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Mermelstein accept in East Norriton, PA?

    Dr. Mermelstein in East Norriton, PA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Humana

    • Independence Health Group

    • Jefferson Health

    • Medicare

    • Mutual of Omaha

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Mermelstein's office located?

    Dr. Andrew Mermelstein's Primary Practice

    170 W Germantown Pike Ste C2

    East Norriton, PA 19401

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    Dr. Andrew Mermelstein's Practice 2

    262 Bethlehem Pike Ste 100

    Colmar, PA 18915

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    Dr. Andrew Mermelstein's Practice 3

    1628 Butler Pike

    Conshohocken, PA 19428

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    Recognitions

    Castle Connolly Doctor’s Choice Awards

    nomination-award-icon

    Doctor’s Choice - All Time

    Among the most nominated for the Castle Connolly Top Doctor recognition across all time

    What is Dr. Mermelstein's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Mermelstein's National Provider Identifier (NPI) number is 1215920335.

    What common questions do patients ask about Dr. Mermelstein?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Mermelstein

    What is Dr. Andrew Mermelstein's specialty?

    Dr. Mermelstein is a Rheumatologist near East Norriton, PA. An internist specializing in the treatment of diseases affecting the joints, muscles, bones, and tendons. This specialist diagnoses and manages conditions such as arthritis, back pain, muscle strains, common sports injuries, and collagen-related diseases. Contact Dr. Mermelstein to book an appointment today.

    Is this Dr. Andrew Mermelstein affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Mermelstein is affiliated with Jefferson Einstein Montgomery Hospital which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    Where can I learn more about Rheumatologist?

    Explore Rheumatologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Andrew Mermelstein accepting new patients in East Norriton, PA?

    Yes, Dr. Andrew Mermelstein is accepting new patients at this time.

    Does Dr. Andrew Mermelstein offer online booking?

    Please contact Dr. Mermelstein's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Andrew Mermelstein?

    Please contact Dr. Mermelstein's office for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Andrew Mermelstein have?

    Dr. Andrew Mermelstein is certified by the American Board of Internal Medicine.

    <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>