Louis Kuchnir, M.D.
Dermatology Physician · Marlborough, MA
Louis Kuchnir, M.D. is a dermatology physician with a practice address in Marlborough, Massachusetts, and NPI 1043269731, issued on May 9, 2006. Check the license (Massachusetts 159458, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Louis Kuchnir
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 159458 MA
Self-reported in NPPES; status is on the state search - Practice location
- 11 Apex Drive, Marlborough, MA 01752
- Phone
- (508) 485-7779
- Enumerated
- May 9, 2006
- Record last updated
- Dec 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20031113000333); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 627 in Massachusetts → Look up another NPI →
Also registered at 11 Apex Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chantal ErhunseRegistered Nurse1568220473
Verify Louis Kuchnir in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 159458Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average dermatology physician in 2024
208 Medicare Part D claims for 101 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Ketoconazole36 claims
- Triamcinolone Acetonide22 claims
- Clobetasol Propionate16 claims
- Econazole Nitrate15 claims
- Desonide13 claims
- Mupirocin11 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): 43.6 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: $471.87
13 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 10,250 providers of this specialty with any payment received $8,544.61 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.
Bills Medicare through one group practice
- Louis Kuchnir MD PCMilford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Louis Kuchnir among 627 dermatology physician records in Massachusetts
Louis Kuchnir, M.D. is one of 627 dermatology physician records with a practice address in Massachusetts. 83% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 61% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1997 · median 2008 among the 445 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 dermatology physician records list a practice address in Marlborough
They are 8 of the 3,071 NPPES records with a practice address in Marlborough, and 627 dermatology physician records in Massachusetts.
All 627 in Massachusetts → Every provider in Marlborough → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Shiu-Chung Au, MDMarlborough, MA 017521841424272
- Jeffrey Bernhard, M.D.Marlborough, MA 017521720061302
- Kevin Donohue, M.D.Marlborough, MA 017521225087919
- Deborah Goddard, M.D.Marlborough, MA 017521255463733
- Byron Ho, M.D.Marlborough, MA 017521194115709
- Carl Schanbacher, M.D.Marlborough, MA 017521366407371
- Thanh-Nga Tran, MD, PHDMarlborough, MA 017521407977846
- Lee Albert, MDMilford, MA 017571619974102
Common questions
What is Louis Kuchnir, M.D.'s NPI number?
Louis Kuchnir, M.D.'s National Provider Identifier (NPI) is 1043269731, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Louis Kuchnir, M.D. located?
The NPPES record lists a practice address at 11 Apex Drive, Marlborough, MA, 01752. Phone: (508) 485-7779. Providers update this record themselves, so call before visiting.
How can I verify Louis Kuchnir, M.D.'s license?
NPPES lists Massachusetts license number 159458, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Louis Kuchnir, M.D. prescribe under Medicare Part D?
In 2024, Louis Kuchnir, M.D. had 208 Medicare Part D claims for 101 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Louis Kuchnir, M.D.'s MIPS final score?
The 2023 MIPS final score is 43.6 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.