Lynne Kossow, MD
NPI 1659390193 · Internal Medicine Physician · Princeton, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lynne Kossow, MD is a Internal Medicine Physician provider in Princeton, NJ (NPI 1659390193).
Provider details
- NPI number
- 1659390193
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 25MA05857200 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,028 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 216 | $135 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 189 | $9 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 107 | $20 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 103 | $137 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 102 | $20 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 80 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 184 | 50 |
| Atorvastatin Calcium | 121 | 31 |
| Amlodipine Besylate | 74 | 22 |
| Ezetimibe | 63 | 19 |
| Escitalopram Oxalate | 53 | 14 |
| Celecoxib | 47 | 14 |
| Levothyroxine Sodium | 45 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2022-02-12
- Certified
- 2022-02-12
Frequently asked questions
- What is Lynne Kossow's NPI number?
- Lynne Kossow's National Provider Identifier (NPI) is 1659390193, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lynne Kossow's specialty?
- Lynne Kossow is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lynne Kossow located?
- Lynne Kossow's practice location on file with NPPES is 731 Alexander Rd Ste 201, Princeton, NJ 08540-6345.
- What is Lynne Kossow's phone number?
- The practice phone number listed in the NPPES registry for Lynne Kossow is (609) 655-3800.
- Does Lynne Kossow accept Medicare?
- Lynne Kossow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lynne Kossow's NPI active?
- Yes — Lynne Kossow's NPI (1659390193) is active in the NPPES registry as of the last update on 2022-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.