Leyen Lim, O.D.
NPI 1831160969 · Optometrist · San Fernando, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leyen Lim, O.D. is a Optometrist provider in San Fernando, CA (NPI 1831160969).
Provider details
- NPI number
- 1831160969
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- OPT12233T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
12 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 12 | $170 |
Typical Medicare-allowed amounts for these services range $170–$170 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-27
- Last updated
- 2015-07-20
Frequently asked questions
- What is Leyen Lim's NPI number?
- Leyen Lim's National Provider Identifier (NPI) is 1831160969, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leyen Lim's specialty?
- Leyen Lim is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Leyen Lim located?
- Leyen Lim's practice location on file with NPPES is 1101 Truman St, San Fernando, CA 91340-3237.
- What is Leyen Lim's phone number?
- The practice phone number listed in the NPPES registry for Leyen Lim is (818) 361-2020.
- Does Leyen Lim accept Medicare?
- Leyen Lim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leyen Lim's NPI active?
- Yes — Leyen Lim's NPI (1831160969) is active in the NPPES registry as of the last update on 2015-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.