Margaret Adams, MD
Margaret Adams, MD is a Clinical Neurophysiology Physician in Ellicott City, MD, registered under NPI 1003978040. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 8388 COURT AVE STE 203, Ellicott City, MD 21043. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| D0034452 | MD | Clinical Neurophysiology Physician primary |
This provider holds licence D0034452 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Clinical Neurophysiology covers
Clinical Neurophysiology is a subspecialty with psychiatric or neurologic expertise in the diagnosis and management of central, peripheral, and autonomic nervous system disorders using combined clinical evaluation and electrophysiologic testing such as electroencephalography (EEG), electromyography (EMG), and nerve conduction studies (NCS). NUCC Health Care Provider Taxonomy, code 2084N0600X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003978040 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 15, 2006 |
| Last updated | Aug 7, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MD |
| Practice address |
8388 COURT AVE STE 203 Ellicott City, MD 21043 (410) 313-8119 |
| Other identifiers |
PVPB124381
· APS HEALTHCARE (MD) 036536 · VALUE OPTIONS (MD) T541-0048 · CAREFIRST BCBS (MD) 271768-000 · MAGELLAN (MD) 217924 · KAISER (MD) 067891100 (MD) 2846675000 · AMERIHEALTH PPO |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 9 | 7 | 8 | 0 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 9 | 7 | 7 | 0 | 8 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.