Douglas Louie, MD
NPI 1821190018 · Family Medicine Physician · Tacoma, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Louie, MD is a Family Medicine Physician provider in Tacoma, WA (NPI 1821190018).
Provider details
- NPI number
- 1821190018
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00024972 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,632 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 1,076 | $120 |
| Destruction of Skin Growth, 1-14 Growths17110 | 161 | $110 |
| Administration of Influenza Virus VaccineG0008 | 108 | $32 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 100 | $86 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 99 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 124 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 532 | 153 |
| Atorvastatin Calcium | 445 | 114 |
| Lisinopril | 362 | 102 |
| Levothyroxine Sodium | 231 | 58 |
| Losartan Potassium | 201 | 58 |
| Metformin Hcl | 196 | 55 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$68 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-01
- Last updated
- 2023-03-07
Frequently asked questions
- What is Douglas Louie's NPI number?
- Douglas Louie's National Provider Identifier (NPI) is 1821190018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Louie's specialty?
- Douglas Louie is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Louie located?
- Douglas Louie's practice location on file with NPPES is 12157 Pacific Ave, Tacoma, WA 98444-5124.
- What is Douglas Louie's phone number?
- The practice phone number listed in the NPPES registry for Douglas Louie is (253) 537-1562.
- Does Douglas Louie accept Medicare?
- Douglas Louie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Louie's NPI active?
- Yes — Douglas Louie's NPI (1821190018) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.