Lynn N. Oku, OD
- Medicare patients, 2024
- 73
- Part D claims, 2024
- 37
- Industry payments
- $177
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 239 Avenida Del Norte, Redondo Beach, CA 90277-5799
- Practice phone
- Call (310) 540-5545
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mark Hilker Williams
Eye care practice · Redondo Beach, California
Find Lynn Oku's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Lynn N. Oku is an optometrist in Hermosa Beach, California
Lynn Oku practices at Mark Hilker Williams in Redondo Beach, California.
Lynn Oku's NPI, 1386614360, was assigned on January 24, 2006. Lynn Oku graduated from University of California - School of Optometry in 2001. Lynn Oku holds California license 11721T.
- NPI
- 1386614360NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789891805
- NPI enumeration date
- January 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 540-5545
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Lynn N. Oku practices in Redondo Beach and Hermosa Beach
Lynn Oku's primary practice is Mark Hilker Williams, at 239 Avenida Del Norte, Redondo Beach, CA 90277-5799. The practice phone is (310) 540-5545. The NPI Registry lists Lynn Oku's practice address as 705 Pier Ave, Hermosa Beach, CA 90254.
- Mark Hilker WilliamsPrimary239 Avenida Del Norte, Redondo Beach, CA 90277-5799Phone(310) 540-5545
- NPI Registry address705 Pier Ave, Hermosa Beach, CA 90254 · Los Angeles County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Lynn N. Oku is affiliated with 1 site of care and 1 medical group
Lynn Oku's primary practice is Mark Hilker Williams in Redondo Beach, California. Dmand AI also links Lynn Oku to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Lynn N. Oku's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Lynn Oku practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mark Hilker Williams | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Lynn N. Oku is one of 7,206 optometrists in California
Optometrist is Lynn Oku's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Lynn Oku is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Lynn Oku
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Lynn N. Oku treated 73 Medicare patients in 2024, average age 78
CMS counts 73 Medicare patients who saw Lynn Oku in 2024. The largest group is 75 to 84, with 35 patients. 75% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Lynn Oku's median patient age at 62, with 40% women.
Lynn Oku's Medicare patients by age, 2024
Lynn Oku's Medicare patients by sex, 2024
- Women4258%
- Men3142%
Chronic conditions among Lynn Oku's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis52%
- Atrial fibrillation27%
- Chronic kidney disease22%
- Ischemic heart disease22%
- Cancer16%
- Diabetes16%
Share of Medicare patients with each condition. A patient can have several.
Lynn Oku's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women40%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Lynn N. Oku wrote 37 Medicare Part D claims in 2024
In 2024, Lynn Oku wrote 37 Medicare Part D claims for 18 patients. 41% of them were for generic drugs.
Lynn Oku's Part D claims by kind of drug, 2024
- Generic15 claims41%
- Brand-name22 claims59%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Lynn N. Oku ranks in the 37th percentile for cataract surgery in Medicare
Lynn Oku accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 14 procedures of cataract surgery by Lynn Oku, more than 37% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Lynn Oku ranks in Medicare procedure volume
- Cataract surgery
- 37th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Lynn N. Oku received $177 in industry payments in 2025
CMS Open Payments shows 3 general payments to Lynn Oku from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $107.
Companies that paid Lynn Oku the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Lynn N. Oku graduated from University of California - School of Optometry
Lynn Oku graduated from University of California - School of Optometry in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Lynn N. Oku's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Lynn N. Oku
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Lynn N. Oku's NPI number?
Lynn N. Oku's NPI number is 1386614360. It was assigned on January 24, 2006, and it is active in the NPI Registry.
What does Lynn N. Oku specialize in?
Lynn N. Oku is an optometrist in Hermosa Beach, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Lynn N. Oku practice?
Lynn Oku practices at 239 Avenida Del Norte, Redondo Beach, CA 90277-5799. Lynn Oku also practices at 705 Pier Ave, Hermosa Beach, CA 90254. Lynn Oku's primary practice is Mark Hilker Williams in Redondo Beach, California. Dmand AI also links Lynn Oku to 1 medical group.
What is Lynn N. Oku's office phone number?
The practice phone on file for Lynn Oku is (310) 540-5545.
What is Lynn N. Oku's medical license number?
Lynn Oku holds California license 11721T.
Does Lynn N. Oku accept Medicare?
Yes. CMS lists Lynn Oku as accepting Medicare assignment.
How many Medicare patients does Lynn N. Oku see?
CMS counts 73 Medicare patients who saw Lynn Oku in 2024, with an average age of 78.
Where did Lynn N. Oku go to medical school?
Lynn Oku graduated from University of California - School of Optometry in 2001.
Has Lynn N. Oku received payments from drug or device companies?
CMS Open Payments shows $177 in general payments to Lynn Oku from 3 companies from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Lynn N. Oku been practicing?
Lynn Oku graduated from medical school in 2001, 25 years ago.
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