Stephen D. Koss, MD
Sports Medicine (Orthopaedic Surgery) Physician · Hackettstown, NJ
Stephen D. Koss, MD is a sports medicine (orthopaedic surgery) physician with a practice address in Hackettstown, New Jersey, and NPI 1265482897, issued on May 12, 2006. Check the license (New Jersey 25MA06416800, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Stephen D. Koss
- Credential
- MD
- Primary taxonomy
- Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
- License number
- 25MA06416800 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 108 Bilby RD, Hackettstown, NJ 07840
- Phone
- (908) 684-3005
- Enumerated
- May 12, 2006
- Record last updated
- Feb 13, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (908) 684-3301
- Medicaid ID
- 7165307 NJ
- Medicare enrollment
- Enrolled (PECOS I20110512000674); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest sports medicine (orthopaedic surgery) physician records → All 103 in New Jersey → Look up another NPI →
Also registered at 108 Bilby RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Armstrong, ATCAthletic Trainer1902157399
- Elizabeth Botham, M.D.Dermatology Physician1669732467
- Linda Brower, PTPhysical Therapist1124037056
- Neil Campbell, DOObstetrics & Gynecology Physician1154412542
- Thomas Campion, MDSurgery Physician1306883467
- Frank Corrigan, M.D.Orthopaedic Hand Surgery Physician1164626834
Verify Stephen D. Koss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA06416800Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average sports medicine (orthopaedic surgery) physician in 2024
155 Medicare Part D claims for 78 beneficiaries, against an average of 288 among the 2,562 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin109 claims
- Clindamycin Hcl16 claims
- Meloxicam14 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): 79.4 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: $61.09
2 payments; by number, the most common kind was food and beverage; the largest payer was Becton, Dickinson and Company. The 2,400 providers of this specialty with any payment received $19,779.31 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
- North Jersey Sports Medicine And Orthopedic Center, LLCHackettstown, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen D. Koss among 103 sports medicine (orthopaedic surgery) physician records in New Jersey
Stephen D. Koss, MD is one of 103 sports medicine (orthopaedic surgery) physician records with a practice address in New Jersey. 90% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 45% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1989 · median 2001 among the 77 with a school on file
- Record last updated2013 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sports Medicine (Orthopaedic Surgery) Physician providers in New Jersey
There are 103 sports medicine (orthopaedic surgery) physician records in New Jersey.
All 103 in New Jersey → Every provider in Hackettstown → Sports Medicine (Orthopaedic Surgery) Physician nationwide →
The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes
- Robert Defalco, DOHackettstown, NJ 078401174554471
- Robert Masella, M.D.Hackettstown, NJ 078401801093737
- Paul Teja, D.O.Hackettstown, NJ 078401316943012
- Matthew France, MDBedminster, NJ 079211467450387
- Jeffrey Siegel, M.D.Berkeley Heights, NJ 079221427000728
- Stephen Hunt, MDCedar Knolls, NJ 079271457440711
- Charles Wang, MDCedar Knolls, NJ 079271811421209
- David Solomon, M.D.Florham Park, NJ 079321881080190
Common questions
What is Stephen D. Koss, MD's NPI number?
Stephen D. Koss, MD's National Provider Identifier (NPI) is 1265482897, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen D. Koss, MD located?
The NPPES record lists a practice address at 108 Bilby RD, Hackettstown, NJ, 07840. Phone: (908) 684-3005. Providers update this record themselves, so call before visiting.
How can I verify Stephen D. Koss, MD's license?
NPPES lists New Jersey license number 25MA06416800, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen D. Koss, MD prescribe under Medicare Part D?
In 2024, Stephen D. Koss, MD had 155 Medicare Part D claims for 78 beneficiaries; the average among sports medicine (orthopaedic surgery) physician prescribers was 288. Part D covers Medicare prescriptions only.
What is Stephen D. Koss, MD's MIPS final score?
The 2023 MIPS final score is 79.4 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.