Onna Lau, MD
NPI 1609372309 · Geriatric Medicine (Family Medicine) Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Onna Lau, MD is a Geriatric Medicine (Family Medicine) Physician provider in Tucson, AZ (NPI 1609372309).
Provider details
- NPI number
- 1609372309
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- E-14789 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
760 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 | 183 | $79 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 106 | $105 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 102 | $62 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 99 | $15 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 58 | $60 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 101 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 348 | 115 |
| Rosuvastatin Calcium | 290 | 92 |
| Atorvastatin Calcium | 257 | 92 |
| Losartan Potassium | 237 | 77 |
| Levothyroxine Sodium | 228 | 64 |
| Lisinopril | 223 | 69 |
| Sertraline Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-02
- Last updated
- 2024-10-10
- Certified
- 2024-10-10
Frequently asked questions
- What is Onna Lau's NPI number?
- Onna Lau's National Provider Identifier (NPI) is 1609372309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Onna Lau's specialty?
- Onna Lau is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Onna Lau located?
- Onna Lau's practice location on file with NPPES is 1740 E Fort Lowell Rd Ste 100, Tucson, AZ 85719-2384.
- What is Onna Lau's phone number?
- The practice phone number listed in the NPPES registry for Onna Lau is (520) 613-0001.
- Does Onna Lau accept Medicare?
- Onna Lau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Onna Lau's NPI active?
- Yes — Onna Lau's NPI (1609372309) is active in the NPPES registry as of the last update on 2024-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.