Doctor profile · Federal record
Dr. William Sikov, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Hematology (Internal Medicine) Physician · Medical Oncology Physician · Providence, RI
- NPI 1811916661
- Accepts Medicare
- 44 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1 Blackstone Street, 2Nd Floor
Providence, RI 029030290
(401) 453-7520 - Additional location
-
101 Dudley St
Providence, RI 029052401
(401) 274-1100 - Mailing address
-
101 Dudley St
Providence, RI 029052401
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- June 16, 2021
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Rhode Island #MD7581
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811916661. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
203
Distinct HCPCS
2
Medicare allowed
$16,356
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 114 | 94 | $67 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 89 | 31 | $98 |
In context: peer comparison
Among 21 peers in Providence Hematology & Oncology Physician, average services per provider: 527. This provider delivers 0.4× the peer median.Open Payments
Industry payments received
All-time total
$1,687
Transactions
12
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Uk Limited | 10 | $1,611.07 | |
| Gilead Sciences, INC. | 1 | $45.75 | |
| Stemline Therapeutics INC. | 1 | $29.74 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. William Sikov's medical specialty?
Dr. William Sikov practices Hematology & Oncology Physician in Providence, RI.
Where does Dr. William Sikov practice?
Dr. William Sikov practices at 1 Blackstone Street, Providence, RI 029030290. Office phone: 4014537520.
What is Dr. William Sikov's NPI?
Dr. William Sikov's National Provider Identifier (NPI) is 1811916661, issued by NPPES.
Does Dr. William Sikov accept Medicare assignment?
Yes. Dr. William Sikov accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Sikov commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.