NPPES file of Aug 9, 2026

Maxwell Kroloff, M.D.

Hematology & Oncology Physician · Los Angeles, CA

Maxwell Kroloff, M.D. is a hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1629463682, issued on Apr 6, 2015. Check the license (California A143959, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629463682
Name
Maxwell Kroloff
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
A143959 CA
Self-reported in NPPES; status is on the state search
Practice location
757 Westwood Plz, Los Angeles, CA 90095
Phone
(310) 825-7375
Enumerated
Apr 6, 2015
Record last updated
Jun 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210526001779); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2015
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 757 Westwood Plz

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gihad AbdelhadyStudent in an Organized Health Care Education/Training Program1528760956
  2. Mohamed Abdelrahim, MDStudent in an Organized Health Care Education/Training Program1699577684
  3. Ridwa AbdiStudent in an Organized Health Care Education/Training Program1093195208
  4. Fatemeh Abdollahi Mofakham, MDDiagnostic Radiology Physician1659652915
  5. Sebiha AbdullahiStudent in an Organized Health Care Education/Training Program1457938235
  6. Tatiana AbdulnourStudent in an Organized Health Care Education/Training Program1700724648

Verify Maxwell Kroloff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A143959
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

7% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

817 Medicare Part D claims for 153 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 36 claims were for opioids.

  1. Maxwell Kroloff817
  2. Specialty average877

Most prescribed

  1. Eliquis68 claims
  2. Anastrozole56 claims
  3. Hydroxyurea48 claims
  4. Prednisone40 claims
  5. Xarelto26 claims
  6. Acyclovir24 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.9
  2. Costout of 100 · 30%66.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. The Regents OF The University OF CaliforniaMarina Del Rey, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Maxwell Kroloff among 1,583 hematology & oncology physician records in California

Maxwell Kroloff, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 84% of them.

  • NPI issued2015 · 84% of these records are older, 13% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2015 · median 2003 among the 1,124 with a school on file
  • Record last updated2021 · 58% 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 California 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 California

There are 1,583 hematology & oncology physician records in California.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. David Chang, MDLos Angeles, CA 900951952336737
  2. Grace Cherry, NPLos Angeles, CA 900951659306447
  3. Sven De Vos, MDLos Angeles, CA 900951528093713
  4. Aryeh Edelist, MDLos Angeles, CA 900951437184629
  5. Christos Emmanouilides, MDLos Angeles, CA 900951780600619
  6. Nancy Feldman, MDLos Angeles, CA 900951538184700
  7. Jennifer Gansert, MDLos Angeles, CA 900951811922412
  8. Patricia Ganz, MDLos Angeles, CA 900951871528471

Common questions

What is Maxwell Kroloff, M.D.'s NPI number?

Maxwell Kroloff, M.D.'s National Provider Identifier (NPI) is 1629463682, issued on Apr 6, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Maxwell Kroloff, M.D. located?

The NPPES record lists a practice address at 757 Westwood Plz, Los Angeles, CA, 90095. Phone: (310) 825-7375. Providers update this record themselves, so call before visiting.

How can I verify Maxwell Kroloff, M.D.'s license?

NPPES lists California license number A143959, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Maxwell Kroloff, M.D. prescribe under Medicare Part D?

In 2024, Maxwell Kroloff, M.D. had 817 Medicare Part D claims for 153 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Maxwell Kroloff, M.D.'s MIPS final score?

The 2023 MIPS final score is 86.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.