Wendy Louie, NP
NPI 1326643883 · Nurse Practitioner · San Francisco, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wendy Louie, NP is a Nurse Practitioner provider in San Francisco, CA (NPI 1326643883).
Provider details
- NPI number
- 1326643883
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 95015515 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 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
385 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 | 113 | $130 |
| Insertion of Lower Leg Neurostimulator Electrode64566 | 84 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $93 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 33 | $16 |
| Simple Timed Assessment of Bladder Emptying51736 | 32 | $14 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 23 | $93 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 37 | 17 |
| Finasteride | 27 | 13 |
| Cephalexin | 25 | 20 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 16 | 15 |
| Potassium Citratebrand: Potassium Citrate Er | 12 | — |
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
- 2020-12-02
- Last updated
- 2020-12-02
- Certified
- 2020-12-02
Frequently asked questions
- What is Wendy Louie's NPI number?
- Wendy Louie's National Provider Identifier (NPI) is 1326643883, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wendy Louie's specialty?
- Wendy Louie is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Wendy Louie located?
- Wendy Louie's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.
- What is Wendy Louie's phone number?
- The practice phone number listed in the NPPES registry for Wendy Louie is (415) 353-8112.
- Does Wendy Louie accept Medicare?
- Wendy Louie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wendy Louie's NPI active?
- Yes — Wendy Louie's NPI (1326643883) is active in the NPPES registry as of the last update on 2020-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.