Alexa Ryder, MD
Alexa Ryder, MD is a provider specialising in Student in an Organized Health Care Education/Training Program in Houston, TX, registered under NPI 1003507773.
Getting there
Here is what surrounds this office in Houston, based on OpenStreetMap data collected Aug 27, 2026. Parking is available about 0.44 mi away at Scurlock Tower Parking. The nearest transit stop is 0.44 mi away. A pharmacy sits 0.46 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.33 mi away.
Getting here and what is nearby
Transit 1,011 ft ~4 min
Coffee Albert and Hazel Herzstein Trading Post 0.21 mi ~5 min
6200 Hermann Park Drive, Houston 77030
Parking Texas Medical Center Garage 4 0.22 mi ~5 min
1406 Cambridge Street, Houston 77030
Restaurant Chick-fil-A 0.22 mi ~5 min
1515 Holcombe Boulevard, Houston 77030
Mo-Fr 11:00-19:00; Su off
Transit 0.23 mi ~5 min
Coffee Twiga Café 0.23 mi ~5 min
6200 Hermann Park Drive, Houston 77030
Restaurant Chick-fil-A 0.23 mi ~5 min
6550 Bertner Avenue, Houston 77030
Mo-Fr 07:00-14:00; Su off
Hotel Jesse H. Jones Rotary House International 0.27 mi ~6 min
Coffee Cypress Circle Cafe 0.33 mi ~7 min
1513 Cambridge Street, Houston 77030
Mo-Su 10:00-16:00
Restaurant Einstein Bros. Bagels 0.35 mi ~7 min
Parking Smith Tower Parking 0.42 mi ~9 min
6550 Fannin Street, Houston 77030
Transit 0.44 mi ~9 min
Parking Scurlock Tower Parking 0.44 mi ~9 min
6560 Fannin Street, Houston 77030
Pharmacy CVS Pharmacy 0.45 mi ~9 min
6622 Fannin Street, Houston 77030
Hotel The Westin Houston Medical Center 0.46 mi ~10 min
Pharmacy Walgreens 0.46 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1003507773 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 15, 2023 |
| Last updated | Jul 8, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MD |
| Practice address |
1333 MOURSUND ST STE 120 Houston, TX 77030 (713) 797-7429 Fax (713) 486-0966 |
| Mailing address |
1333B MOURSUND ST Houston, TX 77030 |
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 | 0 | 7 | 7 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 0 | 5 | 7 | 5 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.