Doctor profile · Federal record
Dr. Hassan Tahsildar, M.D.
Medical Oncology Physician (CMS: Medical Oncology) · Green Bay, WI
- NPI 1629067269
- Accepts Medicare
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
1580 Commanche Ave
Green Bay, WI 543135751
(920) 435-8326 - Additional location
-
2820 Roosevelt RD
Marinette, WI 541433834
(715) 735-5225
fax (715) 735-5388 - Additional location
-
744 S Webster Ave
Green Bay, WI 543013505
(920) 433-3500
fax (920) 445-7301 - Additional location
-
820 Arbutus Ave
Oconto, WI 541532004
(920) 835-1100
fax (920) 835-1099 - Mailing address
-
Po Box 22487
Green Bay, WI 543052487
Show 1 more location
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- January 14, 2021
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Wisconsin #54846-020
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629067269. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
233
Distinct HCPCS
4
Medicare allowed
$22,804
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 180 | 96 | $91 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 19 | 18 | $135 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 17 | 17 | $169 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 17 | 17 | $62 |
In context: peer comparison
Among 3 peers in Green Bay Medical Oncology Physician, average services per provider: 42. This provider delivers 5.5× the peer median.Open Payments
Industry payments received
All-time total
$19
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Jazz Pharmaceuticals INC. | 1 | $18.99 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
760
Patients
148
Total drug cost
$2,365,705
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anastrozole | Generic | 170 | 49 | $5,312 |
| Acyclovir | Generic | 87 | 19 | $1,941 |
| Imbruvica (Ibrutinib) | Brand | 78 | 0 | $1,237,477 |
| Ondansetron Hcl | Generic | 65 | 36 | $947 |
| Prochlorperazine Maleate | Generic | 54 | 30 | $911 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 52 | 0 | $270 |
| Eliquis (Apixaban) | Brand | 45 | 0 | $37,861 |
| Revlimid (Lenalidomide) | Brand | 37 | 0 | $579,977 |
| Xarelto (Rivaroxaban) | Brand | 32 | 0 | $31,718 |
| Calquence (Acalabrutinib Maleate) | Brand | 30 | 0 | $442,149 |
Frequently asked questions
What is Dr. Hassan Tahsildar's medical specialty?
Dr. Hassan Tahsildar practices Medical Oncology Physician in Green Bay, WI.
Where does Dr. Hassan Tahsildar practice?
Dr. Hassan Tahsildar practices at 1580 Commanche Ave, Green Bay, WI 543135751. Office phone: 9204358326.
What is Dr. Hassan Tahsildar's NPI?
Dr. Hassan Tahsildar's National Provider Identifier (NPI) is 1629067269, issued by NPPES.
Does Dr. Hassan Tahsildar accept Medicare assignment?
Yes. Dr. Hassan Tahsildar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hassan Tahsildar commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.