Hai Sun Park, M.D.
Hematology & Oncology Physician · Englewood Cliffs, NJ
Hai Sun Park, M.D. is a hematology & oncology physician with a practice address in Englewood Cliffs, New Jersey, and NPI 1508805839, issued on Jun 5, 2006. Check the license (New Jersey MA53599, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Hai Sun Park
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MA53599 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 464 Hudson Ter Ste 200, Englewood Cliffs, NJ 07632
- Phone
- (201) 408-5442
- Enumerated
- Jun 5, 2006
- Record last updated
- Mar 21, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (201) 503-0848
- Medicare enrollment
- Enrolled (PECOS I20050712000571); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 399 in New Jersey → Look up another NPI →
Verify Hai Sun Park in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license MA53599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average hematology & oncology physician in 2024
3,909 Medicare Part D claims for 295 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 47 claims were for opioids.
Most prescribed
- Atorvastatin Calcium366 claims
- Amlodipine Besylate230 claims
- Metformin Hcl185 claims
- Losartan Potassium179 claims
- Vascepa133 claims
- Escitalopram Oxalate117 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $967.65
50 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Hai Sun Park among 399 hematology & oncology physician records in New Jersey
Hai Sun Park, M.D. is one of 399 hematology & oncology physician records with a practice address in New Jersey. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 52% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1975 · median 2002 among the 294 with a school on file
- Record last updated2019 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in New Jersey
There are 399 hematology & oncology physician records in New Jersey.
All 399 in New Jersey → Every provider in Englewood Cliffs → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Maxwell Janosky, M.D.Englewood, NJ 076311972739308
- Minaxi Jhawer, MBBSEnglewood, NJ 076311487760930
- Meghan Kaumaya, MDEnglewood, NJ 076311609212067
- Brian Kim, M.D.Englewood, NJ 076311053568873
- Alessandra Petrillo, MDEnglewood, NJ 076311447719448
- Meng Wu, MDEnglewood, NJ 076311548721996
- Ross Firestone, MD, PHDMontvale, NJ 076451063972107
- Michael Chang, MDNew Milford, NJ 076461417978719
Common questions
What is Hai Sun Park, M.D.'s NPI number?
Hai Sun Park, M.D.'s National Provider Identifier (NPI) is 1508805839, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hai Sun Park, M.D. located?
The NPPES record lists a practice address at 464 Hudson Ter Ste 200, Englewood Cliffs, NJ, 07632. Phone: (201) 408-5442. Providers update this record themselves, so call before visiting.
How can I verify Hai Sun Park, M.D.'s license?
NPPES lists New Jersey license number MA53599, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hai Sun Park, M.D. prescribe under Medicare Part D?
In 2024, Hai Sun Park, M.D. had 3,909 Medicare Part D claims for 295 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.