Quick answers
- Does Lynne B. Kossow accept Medicare assignment?
- Yes. Medicare's clinician data says Lynne B. Kossow accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Lynne B. Kossow see?
- In 2024, CMS data shows 152 Original Medicare patients and 1,143 services for Lynne B. Kossow. This counts Original Medicare only and measures volume, not quality.
- What is Lynne B. Kossow's NPI number?
- 1659390193. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Lynne B. Kossow, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 152 |
|---|---|
| Services billed to Medicare | 1,143 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)216 services
- Insertion of needle into vein for collection of blood sample (36415)189 services
- Annual alcohol misuse screening, 5 to 15 minutes (G0442)107 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)103 services
- Annual depression screening, 5 to 15 minutes (G0444)102 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure71%
- Arthritis50%
- Ischemic heart disease30%
- Osteoporosis30%
- Anxiety22%
Hospitals where Lynne B. Kossow works
Medicare's Facility Affiliation Data lists Lynne B. Kossow at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Centrastate Medical CenterFreehold, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310111
- University Medical Center of Princeton at PlainsboroPlainsboro, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310010
Practice locations
Addresses where Lynne B. Kossow is enrolled with Medicare (CMS data updated October 2, 2026).
- 731 Alexander RdPrinceton, NJ 08540
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Princeton
Clinicians with the same Medicare primary specialty in Princeton, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Perelman School Of Med At The University Of Pennsylvania |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1659390193 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians