Ryan Felling, M.D., PH.D.
Ryan Felling, M.D., PH.D. is a Neurology with Special Qualifications in Child Neurology Physician in Baltimore, MD, registered under NPI 1487851721. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 200 N WOLFE ST HARRIET LANE, SUITE 2158, Baltimore, MD 21287. 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 |
|---|---|---|
| D74261 | MD | Neurology with Special Qualifications in… primary |
| D74261 | MD | Vascular Neurology Physician |
This provider holds licence D74261 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Neurology
- PAC ID
- 7113183922
- Enrollment ID
- I20120724000131
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Neurology with Special Qualifications in Child Neurology covers
A Child Neurologist specializes in neurology with special skills in diagnosis and treatment of neurologic disorders of the neonatal period, infancy, early childhood, and adolescence. NUCC Health Care Provider Taxonomy, code 2084N0402X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084N0402X | Neurology with Special Qualifications in Child Neurology Physician Neurology with Special Qualifications in Child Neurology | D74261 | MD | primary |
| 2084V0102X | Vascular Neurology Physician Vascular Neurology | D74261 | MD |
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 | 1487851721 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 29, 2007 |
| Last updated | Mar 30, 2023 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D., PH.D. |
| Practice address |
200 N WOLFE ST HARRIET LANE, SUITE 2158 Baltimore, MD 21287 (410) 502-8073 Fax (410) 614-2297 |
| Mailing address |
6201 GREENLEIGH AVE Middle River, MD 21220 |
| Other identifiers |
T5478
· Other (MD) |
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 | 4 | 8 | 7 | 8 | 5 | 1 | 7 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 7 | 7 | 7 | 5 | 2 | 7 | 4 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
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.