Nathan Hersh
Nathan Hersh is an Emergency Medicine Physician in Philadelphia, PA, registered under NPI 1003557430. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Philadelphia, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 380 ft away. There is EV charging 804 ft from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 418 ft away, served by 16844. A pharmacy sits 0.51 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 941 ft away.
Getting here and what is nearby
Parking SP+ 234 ft ~1 min
Transit 278 ft ~2 min
Transit 378 ft ~2 min
Parking 355 ft ~2 min
Parking 380 ft ~2 min
Restaurant PrimoHoagies 390 ft ~2 min
128 South 11th Street, Philadelphia 19107
Mo-Fr 08:30-21:00; Sa 10:00-21:00; Su 10:00-20:00
Restaurant Top Tomato Bar & Pizza 392 ft ~2 min
116 South 11th Street, Philadelphia 19107
Mo-Fr 10:00-26:00; Sa-Su 11:00-26:00
Transit 16844 418 ft ~2 min
Convenience Wawa 420 ft ~2 min
Restaurant Morea 406 ft ~2 min
110 South 11th Street, Philadelphia 19107-4801
Mo-Th 16:00-24:00, Fr 10:30-25:00, Sa 10:00-25:00, Su 10:00-23:00
Hotel AKA Washington Square 696 ft ~3 min
Grocery MOM's Organic Market 683 ft ~3 min
34 South 11th Street, Philadelphia 19107
Mo-Su 09:00-21:00
Pharmacy Walgreens 737 ft ~3 min
Mo-Fr 09:00-21:00; Sa-Su 10:00-18:00
Coffee Saxby's Coffee 798 ft ~4 min
234 South 11th Street, Philadelphia
Mo-Fr 06:00-20:00, Sa-Su 07:00-20:00
EV charging Tesla Supercharger 804 ft ~4 min
Convenience Pac a Deli 870 ft ~4 min
07:00 - 24:00
Pharmacy CVS Pharmacy 852 ft ~4 min
Coffee Two Persons - Market East 876 ft ~4 min
Convenience 7-Eleven 885 ft ~4 min
Hotel Canopy by Hilton Philadelphia Center City 914 ft ~4 min
Coffee Federal Donuts & Chicken 941 ft ~4 min
Hotel Loews Philadelphia Hotel 0.21 mi ~5 min
Grocery AsianFresh 0.40 mi ~9 min
146 North 10th Street, Philadelphia
Grocery Trader Joe's 0.43 mi ~9 min
1324 Arch Street, Philadelphia 19107
Mo-Su 09:00-21:00
Pharmacy CVS Pharmacy 0.51 mi ~11 min
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 |
|---|---|---|
| 337821 | NY | Emergency Medicine Physician primary |
| 35.154462 | OH | Emergency Medicine Physician |
Licences are recorded in 2 states: NY, OH. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Emergency Medicine
- PAC ID
- 9335536895
Enrolled in Medicare 4 times, across 4 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Pennsylvania | I20250618001280 | Practitioner - Emergency Medicine |
| New York | I20250715001292 | Practitioner - Emergency Medicine |
| Indiana | I20250731003304 | Practitioner - Emergency Medicine |
| Ohio | I20250825002840 | Practitioner - Emergency Medicine |
Medicare enrolment is recorded as approved under the provider type Practitioner - Emergency Medicine. There are 4 separate enrolment records across 4 states (PA, NY, IN, 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 York and Ohio. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care 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 Emergency Medicine covers
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury. NUCC Health Care Provider Taxonomy, code 207P00000X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207P00000X | Emergency Medicine Physician | 337821 | NY | primary |
| 207P00000X | Emergency Medicine Physician | 35.154462 | OH | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003557430 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 7, 2022 |
| Last updated | Aug 12, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
1020 SANSOM ST STE 1651B Philadelphia, PA 19107 (215) 955-9837 Fax (215) 955-9870 |
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 | 5 | 5 | 7 | 4 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 5 | 5 | 4 | 6 |
Sum = 50 · next multiple of 10 = 50 · 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.