Karen Louie, DO
NPI 1891107199 · Surgery Physician · Shenandoah, TX
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Louie, DO is a Surgery Physician provider in Shenandoah, TX (NPI 1891107199).
Provider details
- NPI number
- 1891107199
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- C2-0013655 (DE)
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 tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
202 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 99 | $95 |
| Partial Removal of Breast19301 | 21 | $646 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 18 | $176 |
| Biopsy Or Removal of Deep Lymph Nodes of Underarm38525 | 17 | $216 |
| Injection of Radioactive Material for X-Ray Identification of Lymph Node38792 | 17 | $15 |
| Imaging of Lymph Nodes During Surgery38900 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 24 | 23 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-05-21
- Last updated
- 2025-03-24
- Certified
- 2025-03-24
Frequently asked questions
- What is Karen Louie's NPI number?
- Karen Louie's National Provider Identifier (NPI) is 1891107199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Louie's specialty?
- Karen Louie is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Louie located?
- Karen Louie's practice location on file with NPPES is 17183 Interstate 45 S Ste 330, Shenandoah, TX 77385-3313.
- What is Karen Louie's phone number?
- The practice phone number listed in the NPPES registry for Karen Louie is (936) 270-3655.
- Does Karen Louie accept Medicare?
- Karen Louie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Louie's NPI active?
- Yes — Karen Louie's NPI (1891107199) is active in the NPPES registry as of the last update on 2025-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.