DR. HAESEONG PARK (MD) – Medical Oncology Physician, NPI 1417118621
Medical Oncology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
194 MEDICAL ONCOLOGY in MO
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Provider Addresses for DR. HAESEONG PARK (MD)
450 BROOKLINE AVE
BOSTON, MA 022155450
Phone: (617) 632-4500
Fax: (617) 632-5370
Type: Mailing
660, South Euclid Avenue, Central West End, City of Saint Louis, Missouri, 63110, United States
CB 8056
SAINT LOUIS, MO 631101010
Phone: (800) 647-2098
Fax: (314) 362-3192
Type: Mailing
Siteman Cancer Center, 4921, Parkview Place, BJC, City of Saint Louis, Missouri, 63110, United States
DIV IM MEDICAL ONCOLOGY, STE 7A, 7B, 7C
SAINT LOUIS, MO 631101032
Phone: (800) 647-2098
Fax: (314) 362-3192
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 11 Open Payments records for all available years, with a total value of $25,872.
Total Amount is formed as General ($25,872) + Research ($0) + Ownership ($0) = $25,872.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: Daiichi Sankyo Inc. ($22,875).
Total Amount
$25,872
General + Research + Ownership
Payments
11
Total payment records
General Amount
$25,872
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Daiichi Sankyo Inc. | $22,875 |
| Merck Sharp & Dohme LLC | $2,440 |
| Amgen Inc. | $401 |
| AstraZeneca Pharmaceuticals LP | $135 |
| Astellas Pharma Inc | $20 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2022-08-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20220830000121 | I | Medical Oncology | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 115 | 28 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 94 | 53 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 56 | 27 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 35 | 35 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 15 | 15 | $0 |
Insurance plans in this area (ZIP 02215)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Hematology/Oncology, Internal Medicine | MA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MA | |
| - | MA | |
| Medical Oncology, Hematology, Internal Medicine | MA | |
| Medical Oncology | WA | |
| H E M A T O L O G Y/ O N C O L O G Y | MA | |
| Hematology, Internal Medicine | MA | |
| Orthopedic Surgery | MA | |
| Hematology, Medical Oncology | MA | |
| Hospice/Palliative Care, Internal Medicine | MA |
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