2026 NPPES data Hematology & Oncology Physician NPI 1740423912 M.D.
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KRISTEN SAGER, M.D.

Hematology & Oncology Physician in MENA, Arkansas. 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
537
Medicare Part D claims · 81 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$775.61
41 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KRISTEN SAGER, M.D. is a Hematology & Oncology Physician ([object Object]) practicing in MENA, Arkansas with a Medicare Part D prescribing footprint of 537 claims across 81 beneficiaries — 23% brand-name prescribing . Industry payments of $775.61 across 41 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KRISTEN SAGER, M.D. filed 537 Medicare Part D claims in 2023 across MENA, Arkansas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

KRISTEN SAGER, M.D. 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).

KRISTEN SAGER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/16/2009

NPI 1740423912

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

537 37% vs specialty avg

2023 prescription claims

Specialty avg: 847

Specialty distribution in Arkansas

How Hematology & Oncology Physician compares to other specialties among Arkansas providers

Arkansas providers

Hematology & Oncology Physician share within Arkansas

1. Hematology & Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hematology & Oncology Physician share within Arkansas

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Hematology & 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).

KRISTEN SAGER, M.D. is a Hematology & Oncology Physician provider practicing in MENA, Arkansas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1740423912. 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.

KRISTEN SAGER, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 400 CRESTWOOD CIR STE G, MENA, AR, 71953, with a listed phone of (479) 385-8011. NPI 1740423912 was issued on 04/16/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SAGER 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 537 prescription claims written by this provider, covering 81 Medicare beneficiaries and totaling roughly $870K in drug spend, split 23% brand-name and 77% generic by claim count, with an opioid prescribing rate of 15.3%. 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.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

400 CRESTWOOD CIR STE G
MENA, AR 71953

Provider Details

NPI 1740423912
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Female
NPI Issued 04/16/2009

Hospital and facility affiliations

Facilities where KRISTEN SAGER, M.D. 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.

AMERICAN ONCOLOGY PARTNERS PA
RUSSELLVILLE, AR

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 KRISTEN SAGER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$776

Largest payer

Exelixis Inc.

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.

Brand vs generic prescribing mix · Typical

KRISTEN SAGER, M.D. — brand share 23.0%
Specialty average (est.)

23% brand-name claims vs 77% generic, on 537 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

537
Total Claims
$870K
Total Drug Cost
81
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
607
Total Day Supply
14,729
Brand vs Generic
23% brand / 77% generic
Brand Drug Cost
$860K
Generic Drug Cost
$10K
Opioid Claims
82 (15.3% rate)
Antibiotic Claims
15

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
2.01
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Eliquis
Apixaban
43
Ondansetron Odt
Ondansetron
38
Pantoprazole Sodium
29
Duloxetine Hcl
27
Tramadol Hcl
26
Levothyroxine Sodium
25
Dexamethasone
23
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
21
Diphenoxylate-Atropine
Diphenoxylate Hcl/Atropine
17
Montelukast Sodium
17

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Hematology & Oncology Physician Overview

How KRISTEN SAGER, M.D. fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

KRISTEN SAGER, M.D.'s 537 claims are below the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Arkansas

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

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KRISTEN SAGER, M.D.'s specialty?
KRISTEN SAGER, M.D. specializes in Hematology & Oncology Physician and practices in MENA, Arkansas. Credentials: M.D..
How much does KRISTEN SAGER, M.D. prescribe under Medicare Part D?
In 2023, KRISTEN SAGER, M.D. wrote 537 Medicare Part D claims totaling $870K in drug costs for 81 beneficiaries.
Where is KRISTEN SAGER, M.D. located?
KRISTEN SAGER, M.D. is located at 400 CRESTWOOD CIR STE G, MENA, AR, 71953. Phone: (479) 385-8011.
What is KRISTEN SAGER, M.D.'s NPI number?
KRISTEN SAGER, M.D.'s National Provider Identifier (NPI) is 1740423912, issued on 04/16/2009.
Does KRISTEN SAGER, M.D. prescribe more brand-name or generic drugs?
KRISTEN SAGER, M.D.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $860K in brand drug costs.
Does KRISTEN SAGER, M.D. prescribe opioids?
Yes, KRISTEN SAGER, M.D. had 82 opioid claims in 2023 with an opioid prescribing rate of 15.3%.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does KRISTEN SAGER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KRISTEN SAGER, M.D.'s most frequently prescribed drugs include Eliquis, Ondansetron Odt, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KRISTEN SAGER, M.D. accept Medicare?
KRISTEN SAGER, M.D. appears in CMS Medicare data with 537 Part D claims and 81 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KRISTEN SAGER, M.D.'s credentials?
KRISTEN SAGER, M.D.'s NPI is 1740423912 with credentials M.D.. 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