Doctor profile · Federal record

Dr. Hai Sun Park, M.D.

Hematology & Oncology Physician (CMS: Internal Medicine) · Internal Medicine Physician · Englewood Cliffs, NJ

  • NPI 1508805839
  • Accepts Medicare
  • 51 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
464 Hudson Ter Ste 200
Englewood Cliffs, NJ 076322917
(201) 408-5442
fax (201) 503-0848

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
March 21, 2019
Year of graduation
1975 — 51 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
New Jersey #MA53599

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1508805839. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
23,007
Distinct HCPCS
10
Medicare allowed
$116,317
HCPCS Description Services Patients Avg allowed
J1756 Injection, iron sucrose, 1 mg 21,200 13 $0
99214 Established patient office or other outpatient visit, 30-39 minutes 379 145 $140
36415 Insertion of needle into vein for collection of blood sample 279 132 $8
96372 Injection of drug or substance under skin or into muscle 268 73 $16
99213 Established patient office or other outpatient visit, 20-29 minutes 256 95 $97
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg 198 50 $1
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 85 19 $74
99212 Established patient office or other outpatient visit, 10-19 minutes 51 27 $63
90686 Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage 45 45 $22
G0008 Administration of influenza virus vaccine 45 45 $29

In context: peer comparison

Among 1 peers in this city , average services per provider: 1,278. This provider delivers 18× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$968
Transactions
50
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
Janssen Biotech, Inc. 7 $181.82
E.R. Squibb & Sons, L.L.C. 13 $178.02
Incyte Corporation 4 $130.51
Alexion Pharmaceuticals, Inc. 7 $116.76
Celgene Corporation 5 $78.10
Novartis Pharmaceuticals Corporation 3 $60.85
Bayer Healthcare Pharmaceuticals Inc. 2 $44.98
Daiichi Sankyo Inc. 2 $44.26
AstraZeneca Pharmaceuticals LP 2 $34.39
Telix Pharmaceuticals 2 $33.40
Adaptive Biotechnologies Corporation 1 $26.65
Exelixis Inc. 1 $22.90
AIMMUNE THERAPEUTICS, INC. 1 $15.01

By nature of payment

Food and Beverage
$793
Education
$175

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,069
Patients
470
Total drug cost
$153,782
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 423 105 $7,323
Amlodipine Besylate Generic 317 79 $3,088
Losartan Potassium Generic 242 59 $3,132
Metformin Hcl Generic 160 34 $1,762
Vascepa (Icosapent Ethyl) Brand 128 22 $64,816
Simvastatin Generic 112 23 $1,247
Levothyroxine Sodium Generic 94 25 $1,824
Lisinopril Generic 88 16 $814
Metoprolol Succinate Generic 88 27 $2,184
Creon (Lipase/Protease/Amylase) Brand 83 12 $46,144

Frequently asked questions

Auto-generated from federal data
What is Dr. Hai Sun Park's medical specialty?
Dr. Hai Sun Park practices Hematology & Oncology Physician in Englewood Cliffs, NJ.
Where does Dr. Hai Sun Park practice?
Dr. Hai Sun Park practices at 464 Hudson Ter Ste 200, Englewood Cliffs, NJ 076322917. Office phone: 2014085442.
What is Dr. Hai Sun Park's NPI?
Dr. Hai Sun Park's National Provider Identifier (NPI) is 1508805839, issued by NPPES.
Does Dr. Hai Sun Park accept Medicare assignment?
Yes. Dr. Hai Sun Park accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hai Sun Park commonly perform?
Top Medicare-reported procedures in 2023: Injection, iron sucrose, 1 mg (HCPCS J1756); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.