Doctor profile · Federal record

Dr. Christine Kadien, NP

Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Riverhead, NY

  • NPI 1790450898
  • Accepts Medicare
  • 5 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
1228 E Main St Ste C
Riverhead, NY 119012677
(631) 603-3400
fax (631) 603-3401
Additional location
1 E Roe Blvd
Patchogue, NY 117722631
(631) 475-3900
fax (314) 755-1666
Additional location
266 Middle Country RD
Coram, NY 117274425
(631) 698-1111
fax (631) 698-1195
Show 1 more location
Additional location
765 Route 25A Ste 6
Miller Place, NY 117642649
(631) 320-3200
fax (631) 350-7798
Mailing address
1 E Roe Blvd
Patchogue, NY 117722631

Credentials & registration

NPPES · NUCC
NPI registered
August 2021 — 5 yrs on file
Profile last updated
August 23, 2022
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363LA2200X — NUCC code
State license (1)
New York #310315
Medicaid
NY #07195724

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1790450898. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,545
Distinct HCPCS
10
Medicare allowed
$78,998
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 243 161 $126
99213 Established patient office or other outpatient visit, 20-29 minutes 184 124 $87
36415 Insertion of needle into vein for collection of blood sample 123 98 $8
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 93 74 $8
80061 Blood test, lipids (cholesterol and triglycerides) 91 73 $13
83036 Hemoglobin a1c level 91 73 $9
80053 Blood test, comprehensive group of blood chemicals 90 72 $10
83540 Iron level 90 72 $6
83550 Iron binding capacity 90 72 $9
83615 Lactate dehydrogenase (enzyme) level 90 72 $6

In context: peer comparison

Among 8 peers in Riverhead Adult Health Nurse Practitioner, average services per provider: 108. This provider delivers 24× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$576
Transactions
23
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 5 $147.98
Lilly USA, LLC 4 $100.43
Astellas Pharma US INC 1 $60.00
Novo Nordisk INC 3 $56.89
Exact Sciences Corporation 2 $53.61
Pfizer INC. 2 $41.42
Lundbeck LLC 2 $34.31
Baxter Healthcare 1 $23.89
Abbott Laboratories 1 $23.68
Philips North America LLC 1 $19.31
Avvisto Therapeutics, LLC 1 $14.34

By nature of payment

Food and Beverage
$516
Education
$60

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
478
Patients
200
Total drug cost
$37,113
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 48 39 $525
Atorvastatin Calcium Generic 47 19 $626
Azithromycin Generic 41 37 $182
Methylprednisolone Generic 37 32 $328
Metformin Hcl Generic 35 12 $200
Fenofibrate Generic 33 0 $912
Ozempic (Semaglutide) Brand 32 0 $31,406
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 30 22 $892
Levothyroxine Sodium Generic 30 0 $398
Losartan Potassium Generic 30 0 $289

Frequently asked questions

Auto-generated from federal data
What is Dr. Christine Kadien's medical specialty?
Dr. Christine Kadien practices Adult Health Nurse Practitioner in Riverhead, NY.
Where does Dr. Christine Kadien practice?
Dr. Christine Kadien practices at 1228 E Main St Ste C, Riverhead, NY 119012677. Office phone: 6316033400.
What is Dr. Christine Kadien's NPI?
Dr. Christine Kadien's National Provider Identifier (NPI) is 1790450898, issued by NPPES.
Does Dr. Christine Kadien accept Medicare assignment?
Yes. Dr. Christine Kadien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christine Kadien commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.