John Brian Chan Lim, MD
Internal Medicine Physician · San Antonio, TX
John Brian Chan Lim, MD is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1265767768, issued on Oct 16, 2009. Check the license (Texas Q4451, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Brian Chan Lim
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- Q4451 TX
Self-reported in NPPES; status is on the state search - Practice location
- 8906 Perrin Beitel RD, San Antonio, TX 78217
- Phone
- (210) 572-3306
- Enumerated
- Oct 16, 2009
- Record last updated
- Jan 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (210) 249-0125
- Medicare enrollment
- Enrolled (PECOS I20151103000514); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 8906 Perrin Beitel RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hellen Nguyen-Pham, PAPhysician Assistant1528760873
Verify John Brian Chan Lim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q4451Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,251 Medicare Part D claims for 597 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 170 claims were for opioids.
Most prescribed
- Amlodipine Besylate373 claims
- Rosuvastatin Calcium310 claims
- Atorvastatin Calcium303 claims
- Levothyroxine Sodium276 claims
- Lisinopril255 claims
- Losartan Potassium227 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: $45.27
1 payment: education; the largest payer was Apellis Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Physician Primecare, IncSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Brian Chan Lim among 9,175 internal medicine physician records in Texas
John Brian Chan Lim, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2000 · median 2004 among the 6,088 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
657 internal medicine physician records list a practice address in San Antonio
They are 657 of the 37,749 NPPES records with a practice address in San Antonio, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Antonio → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christopher Ajufo, M.D.San Antonio, TX 782171811220015
- Roy Bell, MDSan Antonio, TX 782171679532675
- Dante Escalante, M.D.San Antonio, TX 782171346321999
- Zichun Feng, M.D.San Antonio, TX 782171700104031
- Richard Ferguson, MDSan Antonio, TX 782171548215882
- Cielo Manriquez, MDSan Antonio, TX 782171376595793
- Thilina Marasinghe, MDSan Antonio, TX 782171821160938
- Aatish Patel, MDSan Antonio, TX 782171376704684
Common questions
What is John Brian Chan Lim, MD's NPI number?
John Brian Chan Lim, MD's National Provider Identifier (NPI) is 1265767768, issued on Oct 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is John Brian Chan Lim, MD located?
The NPPES record lists a practice address at 8906 Perrin Beitel RD, San Antonio, TX, 78217. Phone: (210) 572-3306. Providers update this record themselves, so call before visiting.
How can I verify John Brian Chan Lim, MD's license?
NPPES lists Texas license number Q4451, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Brian Chan Lim, MD prescribe under Medicare Part D?
In 2024, John Brian Chan Lim, MD had 7,251 Medicare Part D claims for 597 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.