Doctor profile · Federal record

Dr. Kathleen Carstens, MD

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Warren, NJ

  • NPI 1669736195
  • Accepts Medicare
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
23 Mountain Blvd
Warren, NJ 070595837
(908) 598-7970
Additional location
10 Berton Pl
Nutley, NJ 071105337
(201) 317-4113
Mailing address
10 Berton Pl
Nutley, NJ 071105337

Credentials & registration

NPPES · NUCC
NPI registered
June 2012 — 14 yrs on file
Profile last updated
December 2, 2022
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New Jersey #25MA09754400

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669736195. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
548
Distinct HCPCS
7
Medicare allowed
$56,052
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 279 232 $100
99214 Established patient office or other outpatient visit, 30-39 minutes 113 96 $139
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 60 60 $142
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 54 54 $16
87428 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 16 14 $69
81002 Urinalysis, manual test 15 15 $3
99204 New patient office or other outpatient visit, 45-59 minutes 11 11 $183

In context: peer comparison

Among 7 peers in Warren Internal Medicine Physician, average services per provider: 105. This provider delivers 5.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$209
Transactions
12
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Exact Sciences Corporation 2 $52.93
Novo Nordisk INC 3 $45.79
Lilly USA, LLC 2 $30.52
GlaxoSmithKline, LLC. 1 $17.00
Takeda Pharmaceuticals U.S.A., INC. 1 $17.00
Pfizer INC. 1 $16.61
Merck Sharp & Dohme LLC 1 $15.37
Abbvie INC. 1 $13.96

By nature of payment

Food and Beverage
$209

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
426
Patients
310
Total drug cost
$5,064
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 45 29 $582
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 41 39 $368
Levothyroxine Sodium Generic 41 23 $650
Amlodipine Besylate Generic 39 23 $266
Fluticasone Propionate Generic 31 24 $330
Alprazolam Generic 30 25 $179
Pantoprazole Sodium Generic 30 13 $435
Azithromycin Generic 28 27 $96
Rosuvastatin Calcium Generic 27 15 $518
Cefuroxime (Cefuroxime Axetil) Brand 23 21 $267

Frequently asked questions

Auto-generated from federal data
What is Dr. Kathleen Carstens's medical specialty?
Dr. Kathleen Carstens practices Internal Medicine Physician in Warren, NJ.
Where does Dr. Kathleen Carstens practice?
Dr. Kathleen Carstens practices at 23 Mountain Blvd, Warren, NJ 070595837. Office phone: 9085987970.
What is Dr. Kathleen Carstens's NPI?
Dr. Kathleen Carstens's National Provider Identifier (NPI) is 1669736195, issued by NPPES.
Does Dr. Kathleen Carstens accept Medicare assignment?
Yes. Dr. Kathleen Carstens accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathleen Carstens commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.