Doctor profile · Federal record
Dr. Robert Tassan, M.D.
Hematology (Internal Medicine) Physician (CMS: Hematology/Oncology) · Medical Oncology Physician · Westwood, NJ
- NPI 1578596508
- Accepts Medicare
- MIPS 89.4 / 100 · 2023
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
260 Old Hook RD, Suite 301
Westwood, NJ 076753123
(201) 383-4840
fax (201) 383-4824 - Additional location
-
795 Franklin Ave
Franklin Lakes, NJ 074171368
(201) 848-8791
fax (201) 848-9604 - Additional location
-
92 2Nd St
Hackensack, NJ 076012191
(551) 996-4202
fax (551) 996-0598 - Mailing address
-
92 2Nd St
Hackensack, NJ 076012191
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 26, 2022
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207RH0000X — NUCC code
- State license (1)
- New Jersey #25MA07452600
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1578596508. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
112,141
Distinct HCPCS
10
Medicare allowed
$550,547
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1439 |
Injection, ferric carboxymaltose, 1 mg | 98,250 | 53 | $1 | |
J0885 |
Injection, epoetin alfa, (for non-esrd use), 1000 units | 9,710 | 22 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,875 | 593 | $140 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 1,088 | 359 | $8 | |
96372 |
Injection of drug or substance under skin or into muscle | 385 | 39 | $16 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 198 | 198 | $180 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 180 | 67 | $72 | |
36415 |
Insertion of needle into vein for collection of blood sample | 138 | 58 | $8 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 135 | 81 | $127 | |
99195 |
Drawing of blood for a medical problem | 84 | 24 | $114 |
In context: peer comparison
Among 1 peers in Westwood Hematology (Internal Medicine) Physician, average services per provider: 8,626. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$3,042
Transactions
129
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Rigel Pharmaceuticals, INC. | 16 | $318.01 | |
| Novartis Pharmaceuticals Corporation | 18 | $288.38 | |
| Celgene Corporation | 19 | $285.27 | |
| Abbvie INC. | 15 | $238.03 | |
| Janssen Biotech, INC. | 7 | $187.10 | |
| Pfizer INC. | 9 | $142.85 | |
| Merck Sharp & Dohme LLC | 8 | $133.64 | |
| Incyte Corporation | 6 | $95.53 | |
| AstraZeneca Pharmaceuticals Lp | 5 | $91.90 | |
| Mirati Therapeutics, INC. | 5 | $89.86 | |
| E.R. Squibb & Sons, L.L.C. | 5 | $86.36 | |
| Taiho Oncology, INC. | 4 | $82.62 | |
| Daiichi Sankyo INC. | 4 | $66.30 | |
| Karyopharm Therapeutics INC. | 4 | $65.56 | |
| Sobi, INC | 4 | $60.71 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
666
Patients
123
Total drug cost
$1,325,959
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydroxyurea | Generic | 163 | 46 | $7,664 |
| Eliquis (Apixaban) | Brand | 157 | 48 | $178,691 |
| Xarelto (Rivaroxaban) | Brand | 65 | 17 | $82,056 |
| Deferasirox | Generic | 39 | 0 | $3,556 |
| Anastrozole | Generic | 37 | 12 | $1,363 |
| Imbruvica (Ibrutinib) | Brand | 37 | 0 | $600,924 |
| Warfarin Sodium | Generic | 30 | 0 | $616 |
| Oxycodone Hcl | Generic | 21 | 0 | $241 |
| Abiraterone Acetate | Generic | 20 | 0 | $41,506 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 20 | 0 | $214 |
Hospital affiliations
Frequently asked questions
What is Dr. Robert Tassan's medical specialty?
Dr. Robert Tassan practices Hematology (Internal Medicine) Physician in Westwood, NJ.
Where does Dr. Robert Tassan practice?
Dr. Robert Tassan practices at 260 Old Hook RD, Westwood, NJ 076753123. Office phone: 2013834840.
What is Dr. Robert Tassan's NPI?
Dr. Robert Tassan's National Provider Identifier (NPI) is 1578596508, issued by NPPES.
Does Dr. Robert Tassan accept Medicare assignment?
Yes. Dr. Robert Tassan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Tassan commonly perform?
Top Medicare-reported procedures in 2023: Injection, ferric carboxymaltose, 1 mg (HCPCS J1439); Injection, epoetin alfa, (for non-esrd use), 1000 units (HCPCS J0885); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.