John Chin-Tiong Lim, M.D.
Obstetrics & Gynecology Physician · Torrance, CA
John Chin-Tiong Lim, M.D. is an obstetrics & gynecology physician with a practice address in Torrance, California, and NPI 1508899493, issued on Jul 7, 2006. Check the license (California G52785, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Chin-Tiong Lim
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G52785 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4201 Torrance Blvd Ste 530, Torrance, CA 90503
- Phone
- (310) 540-5599
- Enumerated
- Jul 7, 2006
- Record last updated
- May 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (310) 371-7812
- Medicare enrollment
- Enrolled (PECOS I20110209000873); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1983
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Verify John Chin-Tiong Lim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G52785Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
179 Medicare Part D claims for 63 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Estradiol38 claims
- Alendronate Sodium16 claims
- Fluconazole12 claims
- Triamterene-Hydrochlorothiazid12 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.
Industry payments in 2024: $340.02
16 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Chin-Tiong Lim among 5,088 obstetrics & gynecology physician records in California
John Chin-Tiong Lim, M.D. is one of 5,088 obstetrics & gynecology physician 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1983 · median 2004 among the 2,700 with a school on file
- Record last updated2018 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Torrance → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Jeffrey Cowan, M.D.Torrance, CA 905031982618500
- Stephanie Culver, MDTorrance, CA 905031386758399
- Lisa Fisher, M.D.Torrance, CA 905031285665810
- Martha Hynes, M.D.Torrance, CA 905031801800750
- Denise Ishimaru, M.D.Torrance, CA 905031225219066
- Francine Ito, M.D.Torrance, CA 905031275562993
- David Lu, MDTorrance, CA 905031255515417
- Astrid Mendoza, D.OTorrance, CA 905031871536797
Common questions
What is John Chin-Tiong Lim, M.D.'s NPI number?
John Chin-Tiong Lim, M.D.'s National Provider Identifier (NPI) is 1508899493, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Chin-Tiong Lim, M.D. located?
The NPPES record lists a practice address at 4201 Torrance Blvd Ste 530, Torrance, CA, 90503. Phone: (310) 540-5599. Providers update this record themselves, so call before visiting.
How can I verify John Chin-Tiong Lim, M.D.'s license?
NPPES lists California license number G52785, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Chin-Tiong Lim, M.D. prescribe under Medicare Part D?
In 2024, John Chin-Tiong Lim, M.D. had 179 Medicare Part D claims for 63 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.