Natalia Maria Llanes Aaron, MD
Neurology Physician · Gaithersburg, MD
Natalia Maria Llanes Aaron, MD is a neurology physician with a practice address in Gaithersburg, Maryland, and NPI 1811121304, issued on May 12, 2009. Check the license (Maryland D0073658, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Natalia Maria Llanes Aaron
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- D0073658 MD
Self-reported in NPPES; status is on the state search - Practice location
- 655 Watkins Mill RD, Gaithersburg, MD 20879
- Phone
- (240) 632-4900
- Enumerated
- May 12, 2009
- Record last updated
- May 5, 2025
- Medicare enrollment
- Enrolled (PECOS I20141208000278); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 526 in Maryland → Look up another NPI →
Also registered at 655 Watkins Mill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Natalia Maria Llanes Aaron in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0073658Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average neurology physician in 2024
1,774 Medicare Part D claims for 463 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Donepezil Hcl245 claims
- Memantine Hcl129 claims
- Gabapentin121 claims
- Carbidopa-Levodopa115 claims
- Levetiracetam108 claims
- Ajovy Autoinjector61 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Natalia Maria Llanes Aaron among 526 neurology physician records in Maryland
Natalia Maria Llanes Aaron, MD is one of 526 neurology physician records with a practice address in Maryland. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 63% of them.
- NPI issued2009 · 63% of these records are older, 33% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2008 · median 2004 among the 325 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Maryland
There are 526 neurology physician records in Maryland.
All 526 in Maryland → Every provider in Gaithersburg → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Andrew Dutka, MDGaithersburg, MD 208791619043973
- Lauren Reoma, M.D.Bethesda, MD 208781508158320
- Walter Young, M.D.North Potomac, MD 208781942448469
- Irina Skopets, MDGaithersburg, MD 208771538116330
- Jonathan Bresner, M.D.Bethesda, MD 208891669595278
- David Brody, MDBethesda, MD 208891164440855
- Kevin Cannard, M.D.Bethesda, MD 208891407886708
- John Choi, MDBethesda, MD 208891205862869
Common questions
What is Natalia Maria Llanes Aaron, MD's NPI number?
Natalia Maria Llanes Aaron, MD's National Provider Identifier (NPI) is 1811121304, issued on May 12, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Natalia Maria Llanes Aaron, MD located?
The NPPES record lists a practice address at 655 Watkins Mill RD, Gaithersburg, MD, 20879. Phone: (240) 632-4900. Providers update this record themselves, so call before visiting.
How can I verify Natalia Maria Llanes Aaron, MD's license?
NPPES lists Maryland license number D0073658, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Natalia Maria Llanes Aaron, MD prescribe under Medicare Part D?
In 2024, Natalia Maria Llanes Aaron, MD had 1,774 Medicare Part D claims for 463 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.