Margaret Whisenant, M.D.
NPI 1811094733 · Internal Medicine Physician · San Marcos, TX
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Whisenant, M.D. is a Internal Medicine Physician provider in San Marcos, TX (NPI 1811094733).
Provider details
- NPI number
- 1811094733
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G3904 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2013-05-16
Frequently asked questions
- What is Margaret Whisenant's NPI number?
- Margaret Whisenant's National Provider Identifier (NPI) is 1811094733, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Whisenant's specialty?
- Margaret Whisenant is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Whisenant located?
- Margaret Whisenant's practice location on file with NPPES is 601 University Dr, San Marcos, TX 78666-4684.
- What is Margaret Whisenant's phone number?
- The practice phone number listed in the NPPES registry for Margaret Whisenant is (512) 245-2161.
- Does Margaret Whisenant accept Medicare?
- Margaret Whisenant is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Whisenant's NPI active?
- Yes — Margaret Whisenant's NPI (1811094733) is active in the NPPES registry as of the last update on 2013-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.