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

Natalia Maria Llanes Aaron, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1811121304

Natalia Maria Llanes Aaron, MD practises Neurology in Gaithersburg, Maryland. Graduated from Georgetown University School of Medicine in 2008, 18 years ago. Practices with Kaiser Foundation Health Plan of the Mid Atlantic States, Inc, a 1,934-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
18
Trained at
Georgetown University School of Medicine
Licensed in
MD
In the registry since
2009
Specialties on file
2
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Gaithersburg, MD

No coordinates on file. Search this address in Google Maps

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence D0073658 (MD)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1811121304
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 12, 2009
Last updated in NPPESMay 5, 2025
Certification dateMay 5, 2025

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc — 1934 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients32
Services billed 47 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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 Kaiser Foundation Health Plan of the Mid Atlantic States, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1934 clinicians in the practice; 12 are shown here.

Other providers in Gaithersburg