Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Gissella Mana

Individual provider Oncology Nutrition Registered Dietitian · NPI 1033473582

Gissella Mana is a Nurse Practitioner in Columbia, Maryland. Qualified in 2019, 7 years ago. Practices with Mary Washington Healthcare Providers LLC, a 261-clinician group and accepts Medicare assignment. Licensed in District of Columbia and Maryland.

Years since qualifying
7
Licensed in
DC, MD
In the registry since
2012
Specialties on file
9

Practice location Address checks out

5526 Green Dory Ln
Columbia, MD 21044-1915
Phone: (301) 640-8687
Show map & directions

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

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence R218563 (MD)
Oncology Nutrition Registered Dietitian Taxonomy 133VN1301X · Licence RN1039408 (DC)
Registered Nurse Taxonomy 163W00000X · Licence R218563 (MD)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence R218563 (MD)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence RN1039408 (DC)
Medical-Surgical Registered Nurse Taxonomy 163WM0705X · Licence RN1039408 (DC)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence RN1039408 (DC)
Home Health Aide Taxonomy 374U00000X
Home Health Aide Taxonomy 374U00000X (DC)

Record details

NPI number1033473582
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJune 29, 2012
Last updated in NPPESOctober 13, 2020
Certification dateOctober 13, 2020

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Mary Washington Healthcare Providers Llc — 261 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 patients13
Services billed 37 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mary Washington Healthcare Providers LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 261 clinicians in the practice; 12 are shown here.