Mary Feldman, DO
Mary Feldman, DO is a Neurology Physician in Dayton, OH, registered under NPI 1003074691. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Dayton, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 0.49 mi away. If you arrive early, there is a coffee shop 0.40 mi away.
Getting here and what is nearby
Parking 147 ft ~1 min
Parking 359 ft ~2 min
Coffee Ghostlight Coffee 861 ft ~4 min
800 South Patterson Boulevard, 45402
Restaurant Old Scratch Pizza & Beer 845 ft ~4 min
Coffee Bigby Coffee 0.22 mi ~5 min
418 Warren Street, Dayton 45410
Mo-Sa 06:00-20:00; Su 07:00-20:00
Restaurant Casano's 0.22 mi ~5 min
430 Warren Street, Dayton 45402
Mo-Th 10:30-23:00; Fr-Sa 10:30-24:00; Su 11:00-23:00
Restaurant Jimmie’s Ladder 11 0.27 mi ~6 min
Gas station Shell 0.39 mi ~8 min
Coffee Starbucks 0.40 mi ~9 min
Convenience Speedway 0.42 mi ~9 min
Convenience United Dairy Farmers 0.43 mi ~9 min
Gas station Speedway 0.43 mi ~9 min
Gas station UDF Fuel 0.44 mi ~9 min
Convenience On The Fly 0.48 mi ~10 min
Parking 0.49 mi ~10 min
Bonner Street, Dayton 45410
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 16666 | NH | Neurocritical Care Physician |
| 16666 | NH | Neurology Physician |
| LT4136 | NH | Neurology Physician |
| 34.012642 | OH | Neurology Physician primary |
Licences are recorded in 2 states: NH, OH. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Neurology
- PAC ID
- 3375682776
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| New Hampshire | I20140807000346 | Practitioner - Neurology |
| Ohio | I20180116002125 | Practitioner - Neurology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurology. There are 2 separate enrolment records across 2 states (NH, OH). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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.
Licensed in 2 states
This provider holds licences in 2 states: New Hampshire and Ohio. The practice address on file is in Dayton, OH, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Neurology covers
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures. NUCC Health Care Provider Taxonomy, code 2084N0400X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084A2900X | Neurocritical Care Physician Neurocritical Care | 16666 | NH | |
| 2084N0400X | Neurology Physician Neurology | 16666 | NH | |
| 2084N0400X | Neurology Physician Neurology | LT4136 | NH | |
| 2084N0400X | Neurology Physician Neurology | 34.012642 | OH | primary |
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 | 1003074691 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 30, 2008 |
| Last updated | Oct 30, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | DO |
| Practice address |
30 E APPLE ST STE 5254A Dayton, OH 45409 (937) 208-4200 Fax (937) 208-4205 |
| Mailing address |
3170 KETTERING BLVD BLDG B 3RD FL Moraine, OH 45439 |
| Other identifiers |
0217667
· Medicaid (OH) 102380162 · Medicaid (PA) |
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 | 0 | 7 | 4 | 6 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 7 | 8 | 6 | 9 |
Sum = 59 · next multiple of 10 = 60 · 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.