Doctor profile · Federal record
Dr. Mark Chaitowitz, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Bronx, NY
- NPI 1922215680
- MIPS 100.0 / 100 · 2023
- 29 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
3411 Wayne Ave, 1St Floor
Bronx, NY 104672509
(718) 920-4137
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- April 14, 2017
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- New York #253878-1
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922215680. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
346
Distinct HCPCS
10
Medicare allowed
$34,245
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 77 | 51 | $77 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 59 | 32 | $113 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 40 | 40 | $152 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 31 | 11 | $113 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 27 | 15 | $77 | |
99451 |
Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes | 26 | 26 | $41 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 23 | 23 | $98 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 23 | 18 | $138 | |
85060 |
Blood smear interpretation by physician with written report | 16 | 16 | $28 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $156 |
In context: peer comparison
Among 18 peers in this city , average services per provider: 103. This provider delivers 3.4× the peer median.Open Payments
Industry payments received
All-time total
$15
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Alexion Pharmaceuticals, Inc. | 1 | $15.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
283
Patients
36
Total drug cost
$671,672
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 116 | 24 | $83,354 |
| Hydroxyurea | Generic | 55 | 12 | $1,135 |
| Imbruvica (Ibrutinib) | Brand | 31 | 0 | $473,526 |
| Potassium Chloride | Generic | 28 | 0 | $284 |
| Xarelto (Rivaroxaban) | Brand | 27 | 0 | $17,134 |
| Procrit (Epoetin Alfa) | Brand | 15 | 0 | $56,377 |
| Imatinib Mesylate | Generic | 11 | 0 | $39,862 |
Frequently asked questions
What is Dr. Mark Chaitowitz's medical specialty?
Dr. Mark Chaitowitz practices Hematology & Oncology Physician in Bronx, NY.
Where does Dr. Mark Chaitowitz practice?
Dr. Mark Chaitowitz practices at 3411 Wayne Ave, Bronx, NY 104672509. Office phone: 7189204137.
What is Dr. Mark Chaitowitz's NPI?
Dr. Mark Chaitowitz's National Provider Identifier (NPI) is 1922215680, issued by NPPES.
Does Dr. Mark Chaitowitz accept Medicare assignment?
Dr. Mark Chaitowitz does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Mark Chaitowitz 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); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.