Lourin N. Chahin, MD
Internal Medicine Physician · Macomb, MI
Lourin N. Chahin, MD is an internal medicine physician with a practice address in Macomb, Michigan, and NPI 1902816333, issued on Aug 8, 2006. Check the license (Michigan LC079583, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Lourin N. Chahin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- LC079583 MI
Self-reported in NPPES; status is on the state search - Practice location
- 46857 Garfield RD, Macomb, MI 48044
- Phone
- (586) 532-8500
- Enumerated
- Aug 8, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (586) 532-1515
- Medicare enrollment
- Enrolled (PECOS I20061004000021); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 46857 Garfield RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ratnavalli Pasupulati, MDInternal Medicine Physician1831394873
- Brian Young, DOInternal Medicine Physician1093769192
Verify Lourin N. Chahin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license LC079583Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% more Medicare Part D claims than the average internal medicine physician in 2024
6,232 Medicare Part D claims for 606 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 129 claims were for opioids.
Most prescribed
- Atorvastatin Calcium473 claims
- Omeprazole276 claims
- Amlodipine Besylate266 claims
- Levothyroxine Sodium262 claims
- Losartan Potassium218 claims
- Metoprolol Succinate158 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): 100 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).
Industry payments in 2024: $321.00
9 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.
Lourin N. Chahin among 5,735 internal medicine physician records in Michigan
Lourin N. Chahin, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1999 · median 2006 among the 3,564 with a school on file
- Record last updated2007 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Michigan
There are 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Macomb → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ferah Dalaly, M.D.Macomb, MI 480441033476767
- Jason Donaghue, M.D.Macomb, MI 480441467749317
- Andrea Evangelista, MDMacomb, MI 480441245813179
- Ratnavalli Pasupulati, MDMacomb, MI 480441831394873
- Massimiliano Vitale, M.D.Macomb, MI 480441124006333
- Brian Young, DOMacomb, MI 480441093769192
- Haditya Behl, MDMount Clemens, MI 480431083599104
- Robert Gemayel, DOMount Clemens, MI 480431477244895
Common questions
What is Lourin N. Chahin, MD's NPI number?
Lourin N. Chahin, MD's National Provider Identifier (NPI) is 1902816333, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lourin N. Chahin, MD located?
The NPPES record lists a practice address at 46857 Garfield RD, Macomb, MI, 48044. Phone: (586) 532-8500. Providers update this record themselves, so call before visiting.
How can I verify Lourin N. Chahin, MD's license?
NPPES lists Michigan license number LC079583, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lourin N. Chahin, MD prescribe under Medicare Part D?
In 2024, Lourin N. Chahin, MD had 6,232 Medicare Part D claims for 606 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lourin N. Chahin, MD's MIPS final score?
The 2023 MIPS final score is 100 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.