Mark Khorsandi, DO
Mark Khorsandi, DO is an Orthopaedic Hand Surgery Physician in Houston, TX, registered under NPI 1023051307. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 810 WAUGH DR STE 200, Houston, TX 77019. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| M7331 | TX | Orthopaedic Hand Surgery Physician primary |
| DO1445 | NV | Orthopaedic Hand Surgery Physician |
| OS9504 | FL | Surgery Physician |
| 219738 | NY | Surgery Physician |
| 4587 | AZ | Surgery of the Hand (Surgery) Physician |
Licences are recorded in 5 states: TX, NV, FL, NY, AZ. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - General Surgery
- PAC ID
- 6103846647
Medicare enrolment is recorded as approved under the provider type Practitioner - General Surgery. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 5 states
This provider holds licences in 5 states: Arizona, Florida, Nevada, New York and Texas. The practice address on file is in Houston, 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
- M7331
- Specialty
- Orthopaedic Hand Surgery 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 Hand Surgery covers
An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist. NUCC Health Care Provider Taxonomy, code 207XS0106X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207XS0106X | Orthopaedic Hand Surgery Physician Hand Surgery | M7331 | TX | primary |
| 207XS0106X | Orthopaedic Hand Surgery Physician Hand Surgery | DO1445 | NV | |
| 208600000X | Surgery Physician | OS9504 | FL | |
| 208600000X | Surgery Physician | 219738 | NY | |
| 2086S0105X | Surgery of the Hand (Surgery) Physician Surgery of the Hand | 4587 | AZ |
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 | 1023051307 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 14, 2006 |
| Last updated | Nov 16, 2021 |
| Status | Active |
| Sole proprietor | No |
| Credential | DO |
| Practice address |
810 WAUGH DR STE 200 Houston, TX 77019 (713) 522-5111 Fax (713) 522-6111 |
| Mailing address |
1355 W GRAY ST STE. B Houston, TX 77019 |
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 | 2 | 3 | 0 | 5 | 1 | 3 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 4 | 3 | 0 | 5 | 2 | 3 | 0 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.