Doctor profile · Federal record

Dr. Alexander Coltoff

Hematology & Oncology Physician (CMS: Infectious Disease) · Student in an Organized Health Care Education/Training Program · Charleston, SC

  • NPI 1588026736
  • Accepts Medicare
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
171 Ashley Ave
Charleston, SC 294256504
(843) 792-1414
Additional location
1 Gustave L Levy Pl
New York, NY 100296504
(212) 241-8170
Mailing address
Po Box 751461
Charlotte, NC 282751461

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
August 2, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
South Carolina #87541

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588026736. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
503
Distinct HCPCS
9
Medicare allowed
$49,874
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 173 53 $75
99214 Established patient office or other outpatient visit, 30-39 minutes 130 62 $92
99205 New patient office or other outpatient visit, 60-74 minutes 53 53 $171
99215 Established patient office or other outpatient visit, 40-54 minutes 39 30 $136
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 33 31 $123
38222 Biopsy and aspiration of bone marrow sample for diagnosis 30 25 $71
99204 New patient office or other outpatient visit, 45-59 minutes 18 18 $126
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 15 12 $47
99239 Hospital discharge day management, more than 30 minutes 12 11 $108

In context: peer comparison

Among 6 peers in Charleston Hematology & Oncology Physician, average services per provider: 89. This provider delivers 5.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,084
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Blueprint Medicines Corporation 2 $1,841.82
Sobi, INC 1 $125.00
Janssen Scientific Affairs, LLC 1 $86.56
Novartis Pharmaceuticals Corporation 1 $30.72

By nature of payment

Honoraria
$1,764
Food and Beverage
$320

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
201
Patients
55
Total drug cost
$191,739
Drug Type Claims Patients Total cost
Acyclovir Generic 32 0 $743
Venclexta (Venetoclax) Brand 32 19 $43,564
Allopurinol Generic 28 14 $330
Ciprofloxacin Hcl Generic 27 11 $787
Posaconazole Generic 27 11 $73,880
Hydroxyurea Generic 21 0 $1,104
Imatinib Mesylate Generic 18 0 $71,181
Ondansetron Hcl Generic 16 0 $150

Frequently asked questions

Auto-generated from federal data
What is Dr. Alexander Coltoff's medical specialty?
Dr. Alexander Coltoff practices Hematology & Oncology Physician in Charleston, SC.
Where does Dr. Alexander Coltoff practice?
Dr. Alexander Coltoff practices at 171 Ashley Ave, Charleston, SC 294256504. Office phone: 8437921414.
What is Dr. Alexander Coltoff's NPI?
Dr. Alexander Coltoff's National Provider Identifier (NPI) is 1588026736, issued by NPPES.
Does Dr. Alexander Coltoff accept Medicare assignment?
Yes. Dr. Alexander Coltoff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Coltoff commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.