Tiffany Chang, M.D.
Tiffany Chang, M.D. is a Neurocritical Care Physician in Houston, TX, registered under NPI 1003098310. 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 Houston, based on OpenStreetMap data collected Sep 1, 2026. Parking is available about 0.40 mi away at Scurlock Tower Parking. The nearest transit stop is 311 ft away. A pharmacy sits 0.49 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.35 mi away.
Getting here and what is nearby
Transit 140 ft ~1 min
Transit 212 ft ~1 min
Transit 311 ft ~2 min
Restaurant Chick-fil-A 708 ft ~3 min
6410 Fannin Street, Houston 77030
Coffee Koko Cafe 811 ft ~4 min
10:00-19:00
Parking Texas Medical Center Garage 4 0.25 mi ~5 min
1406 Cambridge Street, Houston 77030
Coffee Little Kitchen HTX 0.28 mi ~6 min
Parking Smith Tower Parking 0.32 mi ~7 min
6550 Fannin Street, Houston 77030
Coffee Twiga Café 0.35 mi ~7 min
6200 Hermann Park Drive, Houston 77030
Parking Scurlock Tower Parking 0.40 mi ~9 min
6560 Fannin Street, Houston 77030
Restaurant Chick-fil-A 0.41 mi ~9 min
6550 Bertner Avenue, Houston 77030
Mo-Fr 07:00-14:00; Su off
Restaurant Einstein Bros. Bagels 0.41 mi ~9 min
Hotel The Westin Houston Medical Center 0.47 mi ~10 min
Pharmacy CVS Pharmacy 0.49 mi ~10 min
6622 Fannin Street, Houston 77030
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 |
|---|---|---|
| P7620 | TX | Neurology Physician |
| P7620 | TX | Neurocritical Care Physician primary |
This provider holds licence P7620 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
- Practitioner - Neurosurgery
- PAC ID
- 6800080193
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Texas | I20131002000096 | Practitioner - Neurosurgery |
| South Carolina | I20260319003080 | Practitioner - Neurosurgery |
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurosurgery. There are 2 separate enrolment records across 2 states (TX, SC). 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.
What Neurocritical Care covers
The medical subspecialty of Neurocritical Care is devoted to the comprehensive, multisystem care of the critically-ill neurological patient. Like other intensivists, the neurointensivist generally assumes the primary role for coordinating the care of his or her patients in the ICU, both the neurological and medical management of the patient. They may also provide consultative services for these patients as requested within the health system. NUCC Health Care Provider Taxonomy, code 2084A2900X
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 | |
|---|---|---|---|---|
| 2084N0400X | Neurology Physician Neurology | P7620 | TX | |
| 2084A2900X | Neurocritical Care Physician Neurocritical Care | P7620 | TX | 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 | 1003098310 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 28, 2007 |
| Last updated | Jan 30, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
6400 FANNIN ST STE 2800 Houston, TX 77030 (713) 486-8000 Fax (713) 486-8088 |
| Mailing address |
6400 FANNIN ST STE 2070 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 | 0 | 9 | 8 | 3 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 9 | 7 | 3 | 2 |
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.