P Praxis·MD
● Active Type 1 · Individual

DR. Katharine Wolcott Markell, M.D.

Colon & Rectal Surgery·Ft. Sam Houston, TX· NPI 1457328361 · Enumerated 2006 · 20 years on NPI
Markell is 1 of 1 colon & rectal surgery providers in Ft. Sam Houston and 1 of 264 in Texas.
NPI age
20 years
Enumerated 2006-03-01
Primary specialty
Colon & Rectal Surgery
Plus 1 subspecialty
Licensed in
NE
1 state
Status
Active
No deactivations on record
Last NPPES update
2022-03-02
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org

How this provider compares

Across 264 active colon & rectal surgery providers in Texas.

NPI age
20 years
↑ 2 yr above median (18 yr)
State licenses
1 state
14% of peers hold multiple states
Subspecialties
1
In the 43% of peers with subspecialties

NPI lifetime · 2006 → 2026

2006-03Enumerated in NPPES
2006 2026

Where they practice

Practice location
3551 Roger Brooke Drive, Bldg 3600, Brooke Army Medical Center - Dept Of Surgery
Ft. Sam Houston, TX 78234
📞 2109161153fax 2109162202
Mailing address
3551 Roger Brooke Dr Bldg 3600
Fort Sam Houston, TX 782344504
📞 2109163774fax 2109166658

Additional practice locations

1 secondary location on file with NPPES.

Location 2
1100 Wilford Hall Loop Bldg 4554
Jbsa Lackland, TX 782365638
📞 2109163774fax 2109166658

Specialties

  • Colon & Rectal Surgery Primary
    A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues...
    NE license #22776 taxonomy 208C00000X
  • Surgery
    A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and...
    NE license #22776 taxonomy 208600000X

Practice context

Solo or small practice. No other active providers share this practice address in NPPES.

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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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