Onna Lau, MD
Geriatric Medicine (Family Medicine) Physician · Tucson, AZ
Onna Lau, MD is a geriatric medicine (family medicine) physician with a practice address in Tucson, Arizona, and NPI 1609372309, issued on Apr 2, 2018. Check the license on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Onna Lau
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Family Medicine) Physician 207QG0300X
- License number
- E-14789 AR
Self-reported in NPPES; status is on the state search - Practice location
- 1740 E Fort Lowell RD Ste 100, Tucson, AZ 85719
- Phone
- (520) 613-0001
- Enumerated
- Apr 2, 2018
- Record last updated
- Oct 10, 2024
- Fax
- (520) 504-6481
- Entity
- Type 1 · individual
8 nearest geriatric medicine (family medicine) physician records → All 41 in Arizona → Look up another NPI →
Also registered at 1740 E Fort Lowell RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Marites Estrada, NURSE PRACTITIONERNurse Practitioner1720890775
- Laura Siegel, FNP-CFamily Nurse Practitioner1861885469
Verify Onna Lau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024
6,317 Medicare Part D claims for 769 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 68 claims were for opioids.
Most prescribed
- Amlodipine Besylate348 claims
- Rosuvastatin Calcium290 claims
- Atorvastatin Calcium257 claims
- Losartan Potassium237 claims
- Levothyroxine Sodium228 claims
- Lisinopril223 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Onna Lau among 41 geriatric medicine (family medicine) physician records in Arizona
Onna Lau, MD is one of 41 geriatric medicine (family medicine) physician records with a practice address in Arizona. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 5% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Family Medicine) Physician providers in Arizona
There are 41 geriatric medicine (family medicine) physician records in Arizona.
All 41 in Arizona → Every provider in Tucson → Geriatric Medicine (Family Medicine) Physician nationwide →
The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes
- Frances Heaton, MDTucson, AZ 857181962483651
- Jaclyn Robinson, MDTucson, AZ 857181609302249
- Charles Lew, MDTucson, AZ 857231407353444
- Carol Howe, M.D.Tucson, AZ 857241750653705
- Melvin Hector, MDTucson, AZ 857121952382640
- Evan Kligman, MD PCTucson, AZ 857121942233689
- David Massanari, MDTucson, AZ 857121003898388
- Fred Miller, MDTucson, AZ 857121124028220
Common questions
What is Onna Lau, MD's NPI number?
Onna Lau, MD's National Provider Identifier (NPI) is 1609372309, issued on Apr 2, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Onna Lau, MD located?
The NPPES record lists a practice address at 1740 E Fort Lowell RD Ste 100, Tucson, AZ, 85719. Phone: (520) 613-0001. Providers update this record themselves, so call before visiting.
How can I verify Onna Lau, MD's license?
Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Onna Lau, MD prescribe under Medicare Part D?
In 2024, Onna Lau, MD had 6,317 Medicare Part D claims for 769 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.