Ruth Shieun Lim, NP
Acute Care Nurse Practitioner · Los Angeles, CA
Ruth Shieun Lim, NP is an acute care nurse practitioner with a practice address in Los Angeles, California, and NPI 1316220809, issued on Sep 21, 2011. Check the license (California 20504, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ruth Shieun Lim
- Credential
- NP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 20504 CA
Self-reported in NPPES; status is on the state search - Practice location
- 757 Westwood Plz, Los Angeles, CA 90095
- Phone
- (310) 825-3567
- Enumerated
- Sep 21, 2011
- Record last updated
- Aug 28, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 1,810 in California → Look up another NPI →
Also registered at 757 Westwood Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ruth Shieun Lim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 20504Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
46 Medicare Part D claims for 11 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D.
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.
Ruth Shieun Lim among 1,810 acute care nurse practitioner records in California
Ruth Shieun Lim, NP is one of 1,810 acute care nurse practitioner records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 18% of them.
- NPI issued2011 · 18% of these records are older, 79% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2013 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in California
There are 1,810 acute care nurse practitioner records in California.
All 1,810 in California → Every provider in Los Angeles → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Sherona Bau, N.P.Los Angeles, CA 900951902056062
- Allison Chavarria, NPLos Angeles, CA 900951750443537
- Teresa Fadely, ACNPLos Angeles, CA 900951821214024
- Henry Hoang, ACNP-BCLos Angeles, CA 900951063741205
- Linda Houser, NPLos Angeles, CA 900951821238692
- Joyleen Martinez, NPLos Angeles, CA 900951962437913
- Marion McRae, RN, NPLos Angeles, CA 900951063675957
- Pamela Miller, MSN NPLos Angeles, CA 900951730378696
Common questions
What is Ruth Shieun Lim, NP's NPI number?
Ruth Shieun Lim, NP's National Provider Identifier (NPI) is 1316220809, issued on Sep 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Shieun Lim, NP located?
The NPPES record lists a practice address at 757 Westwood Plz, Los Angeles, CA, 90095. Phone: (310) 825-3567. Providers update this record themselves, so call before visiting.
How can I verify Ruth Shieun Lim, NP's license?
NPPES lists California license number 20504, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ruth Shieun Lim, NP prescribe under Medicare Part D?
In 2024, Ruth Shieun Lim, NP had 46 Medicare Part D claims for 11 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.