Tamara Koss, MD
Dermatology Physician · Smithtown, NY
Tamara Koss, MD is a dermatology physician with a practice address in Smithtown, New York, and NPI 1013989599, issued on Feb 7, 2006. Check the license (New York 222324, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Tamara Koss
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 222324 NY
Self-reported in NPPES; status is on the state search - Practice location
- 260 Middle Country RD, Smithtown, NY 11787
- Phone
- (631) 863-3223
- Enumerated
- Feb 7, 2006
- Record last updated
- Jan 26, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (631) 863-3334
- Medicare enrollment
- Enrolled (PECOS I20060428000504); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 1,211 in New York → Look up another NPI →
Also registered at 260 Middle Country RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eileen Bishop, M.D.Specialist1356349708
- Jennifer Cassidy, FNPNurse Practitioner1053579524
- David Dagate, M.D.Specialist1790784395
- Ezra Deutsch, M.D.Specialist1356349716
- David Farr, M.D.Specialist1407854912
- Michael Fastenberg, M.D.Dermatology Physician1073735593
Verify Tamara Koss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 222324Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% more Medicare Part D claims than the average dermatology physician in 2024
1,407 Medicare Part D claims for 559 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Ketoconazole184 claims
- Triamcinolone Acetonide184 claims
- Mometasone Furoate116 claims
- Clobetasol Propionate83 claims
- Mupirocin65 claims
- Clindamycin Phosphate56 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 MIPS final score for 2023 (Medicare payment program): 83.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $5,389.01
216 payments; by number, the most common kind was food and beverage; the largest payer was Arcutis Biotherapeutics, 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
- Schweiger Dermatology PLLCSmithtown, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tamara Koss among 1,211 dermatology physician records in New York
Tamara Koss, MD is one of 1,211 dermatology physician records with a practice address in New York. 87% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2023 · median 2004 among the 880 with a school on file
- Record last updated2011 · 61% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in New York
There are 1,211 dermatology physician records in New York.
All 1,211 in New York → Every provider in Smithtown → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Snehal Amin, M.D.Smithtown, NY 117871376585539
- Michael Fastenberg, M.D.Smithtown, NY 117871073735593
- Faith Leffel, RPA CSmithtown, NY 117871205901683
- Lawrence Lieblich, MDSmithtown, NY 117871619985462
- Carina Perrotta, R P.A.-CSmithtown, NY 117871699071159
- Donna Serure, D.O.Smithtown, NY 117871356494231
- Barry Solomon, MD, JD, FAADSmithtown, NY 117871740242031
- Jennifer Defazio, MDHauppauge, NY 117881255443925
Common questions
What is Tamara Koss, MD's NPI number?
Tamara Koss, MD's National Provider Identifier (NPI) is 1013989599, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tamara Koss, MD located?
The NPPES record lists a practice address at 260 Middle Country RD, Smithtown, NY, 11787. Phone: (631) 863-3223. Providers update this record themselves, so call before visiting.
How can I verify Tamara Koss, MD's license?
NPPES lists New York license number 222324, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tamara Koss, MD prescribe under Medicare Part D?
In 2024, Tamara Koss, MD had 1,407 Medicare Part D claims for 559 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Tamara Koss, MD's MIPS final score?
The 2023 MIPS final score is 83.9 of 100. 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.