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● Active Type 2 · Organization

Mark M. Casillas, M.d., P.A.

Orthopaedic Surgery·San Antonio, TX· NPI 1174772461 · Enumerated 2008 · 17 years on NPI
Mark M. Casillas, M.d., P.A. is 1 of 2473 orthopaedic surgery organizations in Texas.
NPI age
17 years
Enumerated 2008-09-11
Primary specialty
Orthopaedic Surgery
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Fleming
Office Manager
Last NPPES update
2009-12-02
Source: monthly bulk 2026-05

How this organization compares

Across 2473 active orthopaedic surgery providers in Texas.

NPI age
17 years
≈ at median (18 yr)
Practice locations
1
0 secondary on file
Subspecialties
0

NPI lifetime · 2008 → 2026

2008-09Enumerated in NPPES
2008 2026

Where they practice

Primary practice location
414 Navarro St, Suite 1616
San Antonio, TX 782052516
📞 2102242655fax 8666440889
Mailing address
414 Navarro St, Suite 1616
San Antonio, TX 782052516
📞 2102242655fax 8666440889

Authorized official

Michelle Fleming
Office Manager
📞 2102242655

Individual providers at this organization

20 individual providers on file at this primary practice address.

Specialties

Allopathic & Osteopathic Physicians › Orthopaedic Surgery
  • Orthopaedic Surgery Primary
    An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is...
    TX license #J1917 taxonomy 207X00000X

Identifiers

TypeValueNotes
05 (TX) 1999781

Other names on file (1)

Doing-business-as, former, and alternate names recorded by NPPES.

  • Foot and Ankle Center of South Texas
    Type code 3 recorded 2008-09-11

Practice context

Multi-provider organization. 20 individual providers on file at this primary address.

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How to verify this organization

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Verify the organization is in good standing.Cross-check with the state's business registration and any applicable licensing boards.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

Related

Orthopaedic Surgery organizations in Texas
→ Texas hub
About this specialty
→ Specialty guide