DR. MATTHEW J MATASAR (M.D.) – Medical Oncology Physician, NPI 1629237987
Medical Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,164 HEMATOLOGY/ONCOLOGY in NY
Loading map...
Provider Addresses for DR. MATTHEW J MATASAR (M.D.)
1233, York Avenue, Lenox Hill, Manhattan Community Board 8, Manhattan, New York County, New York, 10065, United States
SR 441A
NEW YORK, NY 10065
Phone: (212) 639-8889
Fax: (646) 422-2291
Type: Mailing
Memorial Sloan Kettering Cancer Center, 1275, York Avenue, Lenox Hill, Manhattan Community Board 8, Manhattan, New York County, New York, 10065, United States
NEW YORK, NY 10065
Phone: (212) 639-8889
Fax: (646) 422-2291
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 96 Open Payments records for all available years, with a total value of $117,101.
Total Amount is formed as General ($79,009) + Research ($38,092) + Ownership ($0) = $117,101.
Last reported payment date: 2024-12-31 • Largest payer in this snapshot: F. Hoffmann-La Roche AG ($32,014).
Total Amount
$117,101
General + Research + Ownership
Payments
96
Total payment records
General Amount
$79,009
General payments
Research Amount
$38,092
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| F. Hoffmann-La Roche AG | $32,014 |
| Genentech USA, Inc. | $17,685 |
| Genentech, Inc. | $13,523 |
| ADC Therapeutics America, Inc. | $8,170 |
| E.R. Squibb & Sons, L.L.C. | $6,954 |
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: 2018-08-02
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 |
|---|---|---|---|---|
| I20180802000957 | I | Hematology/Oncology | NJ | 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 |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 189 | 94 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 144 | 31 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 38 | 34 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 27 | 27 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 25 | 24 | $0 |
Insurance plans in this area (ZIP 10065)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| U R O L O G Y | CA | |
| Infectious Disease | MI | |
| Cardiovascular Disease (Cardiology) | NJ | |
| Nurse Practitioner | NJ | |
| G A S T R O E N T E R O L O G Y | MD | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NY | |
| Infectious Disease | MI | |
| Internal Medicine | NJ | |
| Nurse Practitioner | NJ | |
| Radiation Oncology, Nephrology | NJ |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.