Tammy Liu Na, OD
- Hospital affiliations
- 1
- Industry payments
- $300
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 25825 South Vermont Avenue, Harbor City, CA 90710
- Practice phone
- Call (310) 325-5111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Tammy Liu Na'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.
Tammy Liu Na is an optometrist in Harbor City, California
Tammy Liu Na practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
Tammy Liu Na's NPI, 1346801933, was assigned on June 24, 2019. Tammy Liu Na graduated from Southern California College of Optometry in 2019. Tammy Liu Na holds California license 34240TLG.
- NPI
- 1346801933NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315379476
- NPI enumeration date
- June 24, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 325-5111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Tammy Liu Na practices at Kaiser Permanente South Bay Medical Center in Harbor City, California
Tammy Liu Na's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.
- Kaiser Permanente South Bay Medical Center25825 South Vermont Avenue, Harbor City, CA 90710 · Los Angeles CountyPhone(310) 325-5111
Source: Dmand AI Affiliation Data
Tammy Liu Na is affiliated with 2 sites of care and 2 medical groups
Tammy Liu Na's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Tammy Liu Na to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Tammy Liu Na's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Tammy Liu Na practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente South Bay Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Tammy Liu Na is one of 7,206 optometrists in California
Optometrist is Tammy Liu Na's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Tammy Liu Na is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Tammy Liu Na
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
Tammy Liu Na's patients have a median age of 48
Across all payers, Dmand AI patient panel data puts Tammy Liu Na's median patient age at 48, with 64% women.
Tammy Liu Na's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women64%
- Men36%
Source: Dmand AI Patient Panel Data
How Tammy Liu Na takes part in Medicare
Tammy Liu Na accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Tammy Liu Na received $300 in industry payments in 2025
CMS Open Payments shows 11 general payments to Tammy Liu Na from 6 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Mallinckrodt Hospital Products Inc. paid the most, $77.
Companies that paid Tammy Liu Na the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Tammy Liu Na graduated from Southern California College of Optometry
Tammy Liu Na graduated from Southern California College of Optometry in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Tammy Liu Na'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Tammy Liu Na
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Tammy Liu Na's NPI number?
Tammy Liu Na's NPI number is 1346801933. It was assigned on June 24, 2019, and it is active in the NPI Registry.
What does Tammy Liu Na specialize in?
Tammy Liu Na is an optometrist in Harbor City, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Tammy Liu Na practice?
Tammy Liu Na practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Tammy Liu Na's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. Dmand AI also links Tammy Liu Na to 1 group practice or clinic and 1 medical group.
What is Tammy Liu Na's office phone number?
The practice phone on file for Tammy Liu Na is (310) 325-5111.
What is Tammy Liu Na's medical license number?
Tammy Liu Na holds California license 34240TLG.
Which hospitals is Tammy Liu Na affiliated with?
Tammy Liu Na practices at Kaiser Permanente South Bay Medical Center in Harbor City, California.
What medical group is Tammy Liu Na part of?
Tammy Liu Na is linked to Southern California Permanente Medical Group. Dmand AI links Tammy Liu Na to 1 more medical group.
Does Tammy Liu Na accept Medicare?
Yes. CMS lists Tammy Liu Na as accepting Medicare assignment.
Where did Tammy Liu Na go to medical school?
Tammy Liu Na graduated from Southern California College of Optometry in 2019.
Has Tammy Liu Na received payments from drug or device companies?
CMS Open Payments shows $300 in general payments to Tammy Liu Na from 6 companies from 2025 to 2025. The largest total came from Mallinckrodt Hospital Products Inc.
How long has Tammy Liu Na been practicing?
Tammy Liu Na graduated from medical school in 2019, 7 years ago.
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