2026 NPPES data Medical Oncology Physician NPI 1346300324 MD
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MAXWELL KREM, MD

Medical Oncology Physician in COLUMBIA, Missouri. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
22
Medicare Part D claims · Medical Oncology Physician avg: 689
Industry payments
$321.6
4 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MAXWELL KREM, MD is a Medical Oncology Physician ([object Object]) practicing in COLUMBIA, Missouri with a Medicare Part D prescribing footprint of 22 claims . Industry payments of $321.6 across 4 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MAXWELL KREM, MD filed 22 Medicare Part D claims in 2023 across COLUMBIA, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MAXWELL KREM, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

MAXWELL KREM, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 12/11/2006

NPI 1346300324

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

22 97% vs specialty avg

2023 prescription claims

Specialty avg: 689

Specialty distribution in Missouri

How Medical Oncology Physician compares to other specialties among Missouri providers

Missouri providers

Medical Oncology Physician share within Missouri

1. Medical Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Oncology Physician share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Medical Oncology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Oncology Physician ABMS/AOA estimate

Est. board-certified rate (Medical Oncology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Oncology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MAXWELL KREM, MD is a Medical Oncology Physician provider practicing in COLUMBIA, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1346300324. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MAXWELL KREM, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at ONE HOSPITAL DR, COLUMBIA, MO, 65212, with a listed phone of (573) 882-8445. NPI 1346300324 was issued on 12/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KREM most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 22 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $45K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Medical Oncology Physician is a narrow specialty nationwide, with 3,792 enrolled providers across 53 states and an average of 689 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

ONE HOSPITAL DR
COLUMBIA, MO 65212

Provider Details

NPI 1346300324
Specialty Medical Oncology Physician
Credentials MD
Gender Male
NPI Issued 12/11/2006

Hospital and facility affiliations

Facilities where MAXWELL KREM, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

THE CURATORS OF THE UNIVERSITY OF MISSOURI
COLUMBIA, MO

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MAXWELL KREM, MD. Source: openpaymentsdata.cms.gov.

Total received

$322

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

22
Total Claims
$45K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
30
Total Day Supply
735
Generic Drug Cost
$796

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
3.57

Medical Oncology Physician Overview

How MAXWELL KREM, MD fits within the Medical Oncology Physician landscape nationally.

3,792
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider

MAXWELL KREM, MD's 22 claims are below the specialty average of 689.

Nearby Medical Oncology Physician Providers in Missouri

Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as KREM.

Compare Medical Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MAXWELL KREM, MD's specialty?
MAXWELL KREM, MD specializes in Medical Oncology Physician and practices in COLUMBIA, Missouri. Credentials: MD.
How much does MAXWELL KREM, MD prescribe under Medicare Part D?
In 2023, MAXWELL KREM, MD wrote 22 Medicare Part D claims totaling $45K in drug costs for N/A beneficiaries.
Where is MAXWELL KREM, MD located?
MAXWELL KREM, MD is located at ONE HOSPITAL DR, COLUMBIA, MO, 65212. Phone: (573) 882-8445.
What is MAXWELL KREM, MD's NPI number?
MAXWELL KREM, MD's National Provider Identifier (NPI) is 1346300324, issued on 12/11/2006.
How many Medical Oncology Physician providers are there in the US?
There are 3,792 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
Does MAXWELL KREM, MD accept Medicare?
MAXWELL KREM, MD appears in CMS Medicare data with 22 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MAXWELL KREM, MD's credentials?
MAXWELL KREM, MD's NPI is 1346300324 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology