Individual provider

Haeseong Park, MD

Medical Oncology Physician Hematology (Internal Medicine) Physician Medicare enrolled

Haeseong Park, MD is a Medical Oncology Physician in Boston, MA, registered under NPI 1417118621. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 450 BROOKLINE AVE, Boston, MA 02215. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

450 BROOKLINE AVE, Boston, MA 02215 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
292711 MA Medical Oncology Physician primary
292711 MA Hematology (Internal Medicine) Physician
2015031847 MO Medical Oncology Physician

Licences are recorded in 2 states: MA, MO. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Medical Oncology
PAC ID
1557500972

Medicare enrolment is recorded as approved under the provider type Practitioner - Medical Oncology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 2 states

This provider holds licences in 2 states: Massachusetts and Missouri. The practice address on file is in Boston, MA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

MA Massachusetts practice address
Licence
292711
Specialty
Medical Oncology Physician
Verify with the MA board →
MO Missouri
Licence
2015031847
Specialty
Medical Oncology Physician
Verify with the MO board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Medical Oncology covers

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer. NUCC Health Care Provider Taxonomy, code 207RX0202X
Allopathic & Osteopathic Physicians Internal Medicine Medical Oncology

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207RX0202X Medical Oncology Physician Medical Oncology 292711 MA primary
207RH0000X Hematology (Internal Medicine) Physician Hematology 292711 MA
207RX0202X Medical Oncology Physician Medical Oncology 2015031847 MO

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1417118621 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJun 19, 2008
Last updatedMar 6, 2023
StatusActive
Sole proprietorNo
CredentialMD
Practice address 450 BROOKLINE AVE
Boston, MA 02215
(617) 632-4500
Fax (617) 632-5370
Other identifiers 200026611 (MO)
The last update on file is Mar 6, 2023. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1417118621 passes the NPI check digit test The final digit 1 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 4 1 7 1 1 8 6 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 4 2 7 2 1 7 6 4

Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1417118621?
NPI 1417118621 is the National Provider Identifier assigned to Haeseong Park, MD in Boston, MA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Medical Oncology cover?
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
How do I contact Haeseong Park, MD?
The phone number on file with NPPES is (617) 632-4500, last updated Mar 6, 2023. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Haeseong Park, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1417118621 a valid number?
Yes. 1417118621 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.