Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Melissa Ann Diener, MD

Individual provider Gastroenterology Physician · NPI 1316106347

Dr. Melissa Ann Diener, MD practises Gastroenterology in Sewell, New Jersey. Graduated from New York University School of Medicine in 2004, 22 years ago. Practices with Advocare, LLC, a 385-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New Jersey.

Years since qualifying
22
Trained at
New York University School of Medicine
Licensed in
NJ
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

239 Hurffville Crosskeys Rd Ste 490
Sewell, NJ 08080-4013
Phone: (856) 237-8045
Fax: (856) 237-8047
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3205 Fire Rd, Egg Harbor Township, NJ 08234-5884 — (609) 407-1220

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 25MA09438500 (NJ)

Record details

NPI number1316106347
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 5, 2008
Last updated in NPPESMay 8, 2026
Certification dateMay 8, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Advocare, Llc — 385 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 91 times · 77th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 56 times · 65th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients323
Services billed 1,438 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $730 40 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Virtua Our Lady Of Lourdes Hospital Hospital · Camden, NJ · listed as Virtua Our Lady of Lourdes Hospital Inc
  • Jefferson Stratford Hospital Hospital · Stratford, NJ
  • West Jersey Hospital Hospital · Voorhees, NJ

Colleagues at Advocare, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 385 clinicians in the practice; 12 are shown here.

Other providers in Sewell