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

Diala El-Maouche, MD, MS

Individual provider Internal Medicine Physician · NPI 1487817821

Diala El-Maouche, MD, MS practises Endocrinology in Washington, District of Columbia. Qualified in 2007, 19 years ago. Practices with Johns Hopkins Community Physicians, Inc, a 765-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in District of Columbia, Florida and Maryland.

Years since qualifying
19
Licensed in
DC, FL, MD
In the registry since
2008
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2300 M St NW
Washington, DC 20037-1434
Phone: (202) 741-3333
Fax: (202) 741-2490
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1400 Nw 12th Ave, Miami, FL 33136-1003 — (305) 243-3636
  • 1400 Nw 12th Ave, Miami, FL 33136-1003 — (305) 243-3636
  • 8600 Old Georgetown Rd, Bethesda, MD 20814 — (301) 896-7500

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence D72079 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence ME119678 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence D72079 (MD)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence MD047855 (DC)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1487817821
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MS
Sole proprietorNo
NPI enumeratedJuly 7, 2008
Last updated in NPPESDecember 19, 2019
Certification dateDecember 19, 2019

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Johns Hopkins Community Physicians, Inc — 765 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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 patients204
Services billed 6,172 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 $641 6 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.

Colleagues at Johns Hopkins Community Physicians, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 765 clinicians in the practice; 12 are shown here.

Other providers in Washington