Susan Mathew, DO
Susan Mathew, DO is a Hospitalist Physician in Sugar Land, TX, registered under NPI 1003200700. 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 Sugar Land, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 0.22 mi away. A pharmacy sits 0.48 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.41 mi away.
Getting here and what is nearby
Parking 531 ft ~3 min
Parking 659 ft ~3 min
Coffee Starbucks 948 ft ~4 min
Convenience Imperial Convenience & Gifts 957 ft ~4 min
Coffee Starbucks 0.21 mi ~5 min
Pharmacy CVS Pharmacy 0.21 mi ~5 min
Parking 0.22 mi ~5 min
Restaurant Jamba 0.23 mi ~5 min
16535 Southwest Freeway, Sugar Land 77479
Mo-Sa 10:00-21:00; Su 12:00-18:00
Restaurant Chick-fil-A 0.24 mi ~5 min
16535 Southwest Freeway, Sugar Land 77479
Mo-Th 10:00-20:00; Fr-Sa 10:00-21:00; Su off
Restaurant IHOP 0.25 mi ~6 min
16530 Southwest Freeway, Sugar Land 77479
Convenience Little Joy 0.39 mi ~8 min
Mo-Th 11:00-20:00; Fr,Sa 10:00-22:00; Su 11:00-18:00
Coffee Starbucks 0.41 mi ~9 min
16098 City Walk Boulevard, Sugar Land 77479
Su-Th 05:30-21:30; Fr,Sa 05:30-23:00
Hotel Houston Marriott Sugar Land 0.43 mi ~9 min
Convenience Honey Farms 0.44 mi ~9 min
16760 Southwest Freeway, Sugar Land 77479
Gas station Exxon 0.45 mi ~10 min
Pharmacy CVS Pharmacy 0.48 mi ~10 min
16515 Lexington Boulevard, Sugar Land 77479
Mo-Fr 08:00-21:00; Sa 09:00-18:00; Su 10:00-18:00; 13:30-14:00 closed "lunch"
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 |
|---|---|---|
| 036.146950 | IL | Internal Medicine Physician |
| S3021 | TX | Internal Medicine Physician |
| 036.146950 | IL | Hospitalist Physician |
| S3021 | TX | Hospitalist Physician primary |
Licences are recorded in 2 states: IL, TX. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 3274884788
- Enrollment ID
- I20200103000596
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal 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.
Licensed in 2 states
This provider holds licences in 2 states: Illinois and Texas. The practice address on file is in Sugar Land, TX, 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
- S3021
- Specialty
- Internal Medicine Physician
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 Hospitalist covers
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients. NUCC Health Care Provider Taxonomy, code 208M00000X
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 | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | 036.146950 | IL | |
| 207R00000X | Internal Medicine Physician | S3021 | TX | |
| 208M00000X | Hospitalist Physician | 036.146950 | IL | |
| 208M00000X | Hospitalist Physician | S3021 | 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 | 1003200700 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 20, 2015 |
| Last updated | Mar 18, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | DO |
| Practice address |
16811 SOUTHWEST FWY FL 3 Sugar Land, TX 77479 (281) 275-0897 |
| Other names |
Susan Thomas Former Legal Business Name |
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 | 0 | 0 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 0 | 7 | 0 |
Sum = 40 · next multiple of 10 = 40 · 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.