Alyssa Simpson, MD
Alyssa Simpson, MD is a Neonatal-Perinatal Medicine Physician in Austin, TX, registered under NPI 1003247974. 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 Austin, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 0.23 mi away at East Campus Garage. There is EV charging 0.47 mi from the office (PIE AE PUBDENNYSNORTH1) — useful if you are driving in from out of town. The nearest transit stop is 986 ft away, served by Comal/21st. If you arrive early, there is a coffee shop 0.46 mi away.
Getting here and what is nearby
Transit 801 Clyde Littlefield/Red River 422 ft ~2 min
Parking Lot 37 440 ft ~2 min
2298 Red River Street, Austin 78705
Transit Comal/Manor 451 ft ~2 min
Transit Comal/21st 986 ft ~4 min
Parking Manor Garage 0.21 mi ~5 min
2017 Robert Dedman Drive, 78712
Parking East Campus Garage 0.23 mi ~5 min
1200 East Martin Luther King Jr. Boulevard, Austin 78722
Restaurant El Chile Cafe Y Cantina 0.29 mi ~6 min
Coffee Starbucks 0.32 mi ~7 min
Restaurant Aster's Ethiopian Restaurant 0.33 mi ~7 min
2804;2808 North Interstate Highway 35 Service Road;North Interstate 35, Austin 78705
Mo-Th 11:00-21:00; Fr-Sa 11:00-22:00; Su 17:00-22:00
Restaurant El Chile Café y Cantina 0.34 mi ~7 min
Hotel Rodeway Inn University / Downtown 0.35 mi ~8 min
2900 North Interstate Highway 35 Service Road, Austin 78705
Hotel DoubleTree by Hilton Austin - University Area 0.42 mi ~9 min
Gas station Shell 0.45 mi ~10 min
1901 East Martin Luther King Jr Boulevard
Gas station Valero 0.45 mi ~9 min
Coffee Red River Cafe 0.46 mi ~10 min
EV charging PIE AE PUBDENNYSNORTH2 0.47 mi ~10 min
EV charging PIE AE PUBDENNYSNORTH1 0.47 mi ~10 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 |
|---|---|---|
| T3009 | TX | Neonatal-Perinatal Medicine Physician primary |
This provider holds licence T3009 issued in TX. 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
- Order And Referring Only - Pediatric Medicine
- PAC ID
- 9032425467
- Enrollment ID
- I20150901000072
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Pediatric Medicine. 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 Neonatal-Perinatal Medicine covers
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies. NUCC Health Care Provider Taxonomy, code 2080N0001X
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 | 1003247974 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 3, 2013 |
| Last updated | Mar 24, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | MD |
| Practice address |
3000 N. I-35 SUITE 770 Austin, TX 78705 (478) 301-2600 |
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 | 2 | 4 | 7 | 9 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 4 | 5 | 9 | 5 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
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.