Alexander Coltoff
Hematology & Oncology Physician · Charleston, SC
Alexander Coltoff is a hematology & oncology physician with a practice address in Charleston, South Carolina, and NPI 1588026736, issued on Mar 27, 2016. Check the license (South Carolina 87541, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Alexander Coltoff
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 87541 SC
Self-reported in NPPES; status is on the state search - Practice location
- 171 Ashley Ave, Charleston, SC 29425
- Phone
- (843) 792-1414
- Enumerated
- Mar 27, 2016
- Record last updated
- Aug 2, 2022
- Medicare enrollment
- Enrolled (PECOS I20220822003507); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 181 in South Carolina → Look up another NPI →
Also registered at 171 Ashley Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrea Abbott, MDSurgical Oncology Physician1245473354
- Miguel Abboud, MDPediatric Hematology & Oncology Physician1619292851
- Ahmed Abdelkader, MD, PHDNephrology Physician1629743000
- Mohamed Abdelwahab, MDOtolaryngology Physician1528679768
- Anne Abel, MDChild Abuse Pediatrics Physician1043328990
- Christina Abrams, M.D.Pediatric Hematology & Oncology Physician1376920207
Verify Alexander Coltoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 87541Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
549 Medicare Part D claims for 109 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Acyclovir68 claims
- Prevymis42 claims
- Posaconazole41 claims
- Hydroxyurea32 claims
- Venclexta31 claims
- Imatinib Mesylate27 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $2,084.10
5 payments; by number, the most common kind was food and beverage; the largest payer was Blueprint Medicines Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University Medical Associates OF The Medical University OF South CarolCharleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Coltoff among 181 hematology & oncology physician records in South Carolina
Alexander Coltoff is one of 181 hematology & oncology physician records with a practice address in South Carolina. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 84% of them.
- NPI issued2016 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2016 · median 2006 among the 139 with a school on file
- Record last updated2022 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in South Carolina
There are 181 hematology & oncology physician records in South Carolina.
All 181 in South Carolina → Every provider in Charleston → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Steven Akman, MDCharleston, SC 294251396729414
- Steve Chin, MDCharleston, SC 294251346292232
- Anthony Dominick, D.O.Charleston, SC 294251477963676
- Robert Fenning, MDCharleston, SC 294251366550212
- Russell Jenkins, MD, PHDCharleston, SC 294251548524911
- Rayna Kneuper-Hall, MDCharleston, SC 294251841308798
- Andrew Kraft, MDCharleston, SC 294251265540207
- Young Lee, M.D.Charleston, SC 294251528036498
Common questions
What is Alexander Coltoff's NPI number?
Alexander Coltoff's National Provider Identifier (NPI) is 1588026736, issued on Mar 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Coltoff located?
The NPPES record lists a practice address at 171 Ashley Ave, Charleston, SC, 29425. Phone: (843) 792-1414. Providers update this record themselves, so call before visiting.
How can I verify Alexander Coltoff's license?
NPPES lists South Carolina license number 87541, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alexander Coltoff prescribe under Medicare Part D?
In 2024, Alexander Coltoff had 549 Medicare Part D claims for 109 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.