Karen Lin, MD
Internal Medicine Physician · Philadelphia, PA
Karen Lin, MD is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1194713099, issued on Oct 13, 2005. Check the license (Pennsylvania MD423353, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Karen Lin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD423353 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3322 N Broad St, Philadelphia, PA 19140
- Phone
- (215) 707-1800
- Enumerated
- Oct 13, 2005
- Record last updated
- Mar 28, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (215) 707-3644
- Medicaid ID
- 1010228800001 PA
- Medicare enrollment
- Enrolled (PECOS I20040923000954); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 2001
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 3322 N Broad St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mackenzie Abate, CRNPFamily Nurse Practitioner1942958525
- Jennifer Aldrich, MDInternal Medicine Physician1386719979
- Jill Allenbaugh, M.D.Internal Medicine Physician1366785339
- Carolyn Beauchamp, PA-CPhysician Assistant1356680292
- Samuel Black, MD, PHDStudent in an Organized Health Care Education/Training Program1124697958
- Mark Cinquegrani, PHARMDPharmacist1730949314
Verify Karen Lin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD423353Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,169 Medicare Part D claims for 156 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. 83 claims were for opioids.
Most prescribed
- Atorvastatin Calcium202 claims
- Amlodipine Besylate178 claims
- Metformin Hcl76 claims
- Omeprazole69 claims
- Fluticasone Propionate53 claims
- Gabapentin53 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Temple Faculty Practice Plan IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Lin among 7,300 internal medicine physician records in Pennsylvania
Karen Lin, MD is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2001 · median 2008 among the 4,208 with a school on file
- Record last updated2018 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,855 internal medicine physician records list a practice address in Philadelphia
They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Philadelphia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kathleen Coppola, MDPhiladelphia, PA 191401932197837
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- Susan Gersh, MDPhiladelphia, PA 191401780672659
- Sharon Herring, MDPhiladelphia, PA 191401285600197
- Lawrence Kaplan, MDPhiladelphia, PA 191401225026198
- Keith McNellis, MDPhiladelphia, PA 191401003804907
- Faria Mesgar, MDPhiladelphia, PA 191401104814268
- Darilyn Moyer, MDPhiladelphia, PA 191401003804915
Common questions
What is Karen Lin, MD's NPI number?
Karen Lin, MD's National Provider Identifier (NPI) is 1194713099, issued on Oct 13, 2005. 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 3322 N Broad St, Philadelphia, PA, 19140. Phone: (215) 707-1800. Providers update this record themselves, so call before visiting.
How can I verify Karen Lin, MD's license?
NPPES lists Pennsylvania license number MD423353, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.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 2,169 Medicare Part D claims for 156 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Karen Lin, MD's MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.