Karen Lin, MD
Internal Medicine Physician · Birmingham, AL
Karen Lin, MD is an internal medicine physician with a practice address in Birmingham, Alabama, and NPI 1538666813, issued on Apr 12, 2018. Check the license (Alabama MD.38796, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Karen Lin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD.38796 AL
Self-reported in NPPES; status is on the state search - Practice location
- 817 Princeton Ave SW Ste 106, Birmingham, AL 35211
- Phone
- (205) 971-5745
- Enumerated
- Apr 12, 2018
- Record last updated
- May 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210617000640); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,705 in Alabama → Look up another NPI →
Also registered at 817 Princeton Ave SW Ste 106
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Lin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license MD.38796Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
400 Medicare Part D claims for 159 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 24 claims were for opioids.
Most prescribed
- Amlodipine Besylate18 claims
- Eliquis17 claims
- Pantoprazole Sodium16 claims
- Atorvastatin Calcium14 claims
- Hydralazine Hcl13 claims
- Levofloxacin12 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: $182.82
8 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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
- Oak Mountain Group Services, LLCBirmingham, AL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Lin among 1,705 internal medicine physician records in Alabama
Karen Lin, MD is one of 1,705 internal medicine physician records with a practice address in Alabama. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 79% of them.
- NPI issued2018 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2017 · median 2003 among the 1,136 with a school on file
- Record last updated2021 · 55% 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 Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
487 internal medicine physician records list a practice address in Birmingham
They are 487 of the 15,795 NPPES records with a practice address in Birmingham, and 1,705 internal medicine physician records in Alabama.
All 1,705 in Alabama → Every provider in Birmingham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Emily Baillio, M.D.Birmingham, AL 352111245207877
- Steve Boger, M.D.Birmingham, AL 352111740209048
- John Dumas, M.D.Birmingham, AL 352111932119419
- Osama Eisa, M.D.Birmingham, AL 352111457365785
- Timothy Eller, M.D.Birmingham, AL 352111700827433
- Sulaf Hage, M.D.Birmingham, AL 352111265478143
- William Hall, M.D.Birmingham, AL 352111316901150
- James Lindsey, M.D.Birmingham, AL 352111851337547
Common questions
What is Karen Lin, MD's NPI number?
Karen Lin, MD's National Provider Identifier (NPI) is 1538666813, issued on Apr 12, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Karen Lin, MD located?
The NPPES record lists a practice address at 817 Princeton Ave SW Ste 106, Birmingham, AL, 35211. Phone: (205) 971-5745. Providers update this record themselves, so call before visiting.
How can I verify Karen Lin, MD's license?
NPPES lists Alabama license number MD.38796, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Lin, MD prescribe under Medicare Part D?
In 2024, Karen Lin, MD had 400 Medicare Part D claims for 159 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.