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

Mrs. Joanne M Dielmann, RD, LD, CDE

Individual provider Registered Dietitian · NPI 1649361924

Mrs. Joanne M Dielmann, RD, LD, CDE is registered under Registered Dietitian OR Nutrition Professional in Baltimore, Maryland. Qualified in 1984, 42 years ago. Practices with Greater Baltimore Medical Center Inc, a 348-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
42
Licensed in
MD
In the registry since
2006
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.
LD — Licensed Dietitian
A dietitian licensed by a state board.
CDE — Certified Diabetes Educator
Teaches people to manage diabetes day to day.

See every abbreviation used in this directory →

Practice location Address checks out

6565 N Charles St Ste 507
Baltimore, MD 21204-6800 Not confirmed with CMS for 19 years — call before visiting
Phone: (443) 849-2036
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence D01492 (MD)

Record details

NPI number1649361924
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD , LD , CDE
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESJuly 13, 2007

Medicare enrollment

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

Medicare specialtyREGISTERED DIETITIAN OR NUTRITION PROFESSIONAL
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Greater Baltimore Medical Center Inc — 348 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients80
Services billed 417 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.

Colleagues at Greater Baltimore Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 348 clinicians in the practice; 12 are shown here.

Other providers in Baltimore