2026 NPPES data Hematology & Oncology Physician NPI 1891136644 M.D
Verify on CMS →

JENNIFER CARTER, M.D

Hematology & Oncology Physician in GREAT FALLS, Montana. 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
210
Medicare Part D claims · 48 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
80.4662/100
▼ 3 pts below national avg 83.1 · [object Object]
Industry payments
$914.37
54 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JENNIFER CARTER, M.D is a Hematology & Oncology Physician ([object Object]) practicing in GREAT FALLS, Montana with a Medicare Part D prescribing footprint of 210 claims across 48 beneficiaries — 12% brand-name prescribing . Their CMS MIPS Final Score of 80.4662/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $914.37 across 54 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JENNIFER CARTER, M.D reported a CMS MIPS final score of 80.4662 out of 100, below the 83.1 national average, and filed 210 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JENNIFER CARTER, M.D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JENNIFER CARTER, M.D at a glance

Near national average

NPI registry status

Active

Issued 07/09/2013

NPI 1891136644

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

210 75% vs specialty avg

2023 prescription claims

Specialty avg: 847

MIPS final score

80.4662/100 2.6337999999999937% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Montana

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

Montana providers

Hematology & Oncology Physician share within Montana

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

Medicare quality performance — MIPS

JENNIFER CARTER, M.D's 2023 MIPS final score plotted against the Hematology & Oncology Physician national average

Near national average
MIPS Final Score
80.4662/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hematology & Oncology Physician) — 80.4662/100 vs national avg 83.1

0%100%National avg83%80.5%
MIPS final score (Hematology & Oncology Physician) — 80.4662/100 vs national avg 83.1

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).

JENNIFER CARTER, M.D is a Hematology & Oncology Physician provider practicing in GREAT FALLS, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D. NPI: 1891136644. 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.

JENNIFER CARTER, M.D appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D credentials at 1117 29TH ST S, GREAT FALLS, MT, 59405, with a listed phone of (406) 731-8888. NPI 1891136644 was issued on 07/09/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARTER 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 210 prescription claims written by this provider, covering 48 Medicare beneficiaries and totaling roughly $115K in drug spend, split 12% brand-name and 88% generic by claim count. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 80.4662/100 for the 2023 performance year (Quality 93.1081, Cost 62.6125), compared with the national average of 83.1.

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

1117 29TH ST S
GREAT FALLS, MT 59405

Provider Details

NPI 1891136644
Specialty Hematology & Oncology Physician
Credentials M.D
Gender Female
NPI Issued 07/09/2013

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

80.4662
Final Score
Avg: 83.1
93.1081
Quality
62.6125
Cost
75
Promoting Interoperability

Reporting: Group practice

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 JENNIFER CARTER, M.D. Source: openpaymentsdata.cms.gov.

Total received

$914

Largest payer

PFIZER 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

JENNIFER CARTER, M.D — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 210 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.

210
Total Claims
$115K
Total Drug Cost
48
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
303
Total Day Supply
8,129
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$98K
Generic Drug Cost
$17K

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.86
Gender Split
63% female / 38% 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
Exemestane
34
Prednisone
17
Hydroxyurea
15
Eliquis
Apixaban
14
Letrozole
14

* 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 JENNIFER CARTER, 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

JENNIFER CARTER, M.D's 210 claims are below the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Montana

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

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

Frequently Asked Questions

What is JENNIFER CARTER, M.D's specialty?
JENNIFER CARTER, M.D specializes in Hematology & Oncology Physician and practices in GREAT FALLS, Montana. Credentials: M.D.
How much does JENNIFER CARTER, M.D prescribe under Medicare Part D?
In 2023, JENNIFER CARTER, M.D wrote 210 Medicare Part D claims totaling $115K in drug costs for 48 beneficiaries.
What is JENNIFER CARTER, M.D's Medicare quality score?
JENNIFER CARTER, M.D has a CMS MIPS Final Score of 80.4662/100 (Quality: 93.1081, Cost: 62.6125). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JENNIFER CARTER, M.D located?
JENNIFER CARTER, M.D is located at 1117 29TH ST S, GREAT FALLS, MT, 59405. Phone: (406) 731-8888.
What is JENNIFER CARTER, M.D's NPI number?
JENNIFER CARTER, M.D's National Provider Identifier (NPI) is 1891136644, issued on 07/09/2013.
Does JENNIFER CARTER, M.D prescribe more brand-name or generic drugs?
JENNIFER CARTER, M.D's prescribing is 12% brand-name and 88% generic drugs by claim count, with $98K in brand drug costs.
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 JENNIFER CARTER, M.D prescribe most often?
Based on 2023 Medicare Part D data, JENNIFER CARTER, M.D's most frequently prescribed drugs include Exemestane, Prednisone, Hydroxyurea. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JENNIFER CARTER, M.D accept Medicare?
JENNIFER CARTER, M.D appears in CMS Medicare data with 210 Part D claims and 48 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNIFER CARTER, M.D's credentials?
JENNIFER CARTER, M.D's NPI is 1891136644 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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