Katharine Markell, M.D.
NPI 1457328361 · Colon & Rectal Surgery Physician · Ft. Sam Houston, TX
Enrolled with Medicare as Order and Referring Only - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Markell, M.D. is a Colon & Rectal Surgery Physician provider in Ft. Sam Houston, TX (NPI 1457328361).
Provider details
- NPI number
- 1457328361
- Entity type
- Individual
- Primary specialty
- Colon & Rectal Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 22776 (NE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1100 Wilford Hall Loop Bldg 4554Jbsa Lackland, TX 78236-5638Phone: (210) 916-3774Fax: (210) 916-6658
Registry dates
- Enumerated
- 2006-03-01
- Last updated
- 2022-03-02
- Certified
- 2022-03-02
Frequently asked questions
- What is Katharine Markell's NPI number?
- Katharine Markell's National Provider Identifier (NPI) is 1457328361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Markell's specialty?
- Katharine Markell is listed in the NPPES registry with a primary specialty of Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Katharine Markell located?
- Katharine Markell's practice location on file with NPPES is 3551 Roger Brooke Drive, Bldg 3600, Ft. Sam Houston, TX 78234.
- What is Katharine Markell's phone number?
- The practice phone number listed in the NPPES registry for Katharine Markell is (210) 916-1153.
- Does Katharine Markell accept Medicare?
- Katharine Markell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Markell's NPI active?
- Yes — Katharine Markell's NPI (1457328361) is active in the NPPES registry as of the last update on 2022-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.