2026 NPPES data Hematology & Oncology Physician NPI 1972655934 M.D.
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CHRISTIANA BRENIN, M.D.

Hematology & Oncology Physician in CHARLOTTESVILLE, Virginia. 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
303
Medicare Part D claims · 110 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3949/100
▼ 4 pts below national avg 83.1 · [object Object]
What the federal data reveals: CHRISTIANA BRENIN, M.D. is a Hematology & Oncology Physician ([object Object]) practicing in CHARLOTTESVILLE, Virginia with a Medicare Part D prescribing footprint of 303 claims across 110 beneficiaries — 9% brand-name prescribing . Their CMS MIPS Final Score of 79.3949/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: CHRISTIANA BRENIN, M.D. reported a CMS MIPS final score of 79.3949 out of 100, below the 83.1 national average, and filed 303 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)

CHRISTIANA BRENIN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

CHRISTIANA BRENIN, M.D. at a glance

Near national average

NPI registry status

Active

Issued 01/18/2007

NPI 1972655934

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

303 64% vs specialty avg

2023 prescription claims

Specialty avg: 847

MIPS final score

79.3949/100 3.7050999999999874% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Virginia

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

Virginia providers

Hematology & Oncology Physician share within Virginia

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

Medicare quality performance — MIPS

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

Near national average
MIPS Final Score
79.3949/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hematology & Oncology Physician) — 79.3949/100 vs national avg 83.1

0%100%National avg83%79.4%
MIPS final score (Hematology & Oncology Physician) — 79.3949/100 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).

CHRISTIANA BRENIN, M.D. is a Hematology & Oncology Physician provider practicing in CHARLOTTESVILLE, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1972655934. 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.

CHRISTIANA BRENIN, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 1240 LEE ST, CHARLOTTESVILLE, VA, 22908, with a listed phone of (434) 924-9333. NPI 1972655934 was issued on 01/18/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BRENIN 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 303 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $359K in drug spend, split 9% brand-name and 91% 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 79.3949/100 for the 2023 performance year (Quality 73.6607, Cost 57.6556), 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

1240 LEE ST
CHARLOTTESVILLE, VA 22908

Provider Details

NPI 1972655934
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Female
NPI Issued 01/18/2007

CMS Quality Score (MIPS)

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

79.3949
Final Score
Avg: 83.1
73.6607
Quality
57.6556
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CHRISTIANA BRENIN, 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.

UNIVERSITY OF VIRGINIA PHYSICIANS GROUP
CHARLOTTESVILLE, VA

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

Brand vs generic prescribing mix · Generic-heavy

CHRISTIANA BRENIN, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 303 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.

303
Total Claims
$359K
Total Drug Cost
110
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
604
Total Day Supply
16,493
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$343K
Generic Drug Cost
$15K

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
1.56

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Letrozole
69
Anastrozole
31
Prochlorperazine Maleate
20
Tamoxifen Citrate
19
Exemestane
18
Ondansetron Hcl
15
Ibrance
Palbociclib
14
Alendronate Sodium
13
Gabapentin
13
Dexamethasone
11

* 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 CHRISTIANA BRENIN, 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

CHRISTIANA BRENIN, M.D.'s 303 claims are below the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Virginia

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

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

Frequently Asked Questions

What is CHRISTIANA BRENIN, M.D.'s specialty?
CHRISTIANA BRENIN, M.D. specializes in Hematology & Oncology Physician and practices in CHARLOTTESVILLE, Virginia. Credentials: M.D..
How much does CHRISTIANA BRENIN, M.D. prescribe under Medicare Part D?
In 2023, CHRISTIANA BRENIN, M.D. wrote 303 Medicare Part D claims totaling $359K in drug costs for 110 beneficiaries.
What is CHRISTIANA BRENIN, M.D.'s Medicare quality score?
CHRISTIANA BRENIN, M.D. has a CMS MIPS Final Score of 79.3949/100 (Quality: 73.6607, Cost: 57.6556). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHRISTIANA BRENIN, M.D. located?
CHRISTIANA BRENIN, M.D. is located at 1240 LEE ST, CHARLOTTESVILLE, VA, 22908. Phone: (434) 924-9333.
What is CHRISTIANA BRENIN, M.D.'s NPI number?
CHRISTIANA BRENIN, M.D.'s National Provider Identifier (NPI) is 1972655934, issued on 01/18/2007.
Does CHRISTIANA BRENIN, M.D. prescribe more brand-name or generic drugs?
CHRISTIANA BRENIN, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $343K 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 CHRISTIANA BRENIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHRISTIANA BRENIN, M.D.'s most frequently prescribed drugs include Letrozole, Anastrozole, Prochlorperazine Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTIANA BRENIN, M.D. accept Medicare?
CHRISTIANA BRENIN, M.D. appears in CMS Medicare data with 303 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTIANA BRENIN, M.D.'s credentials?
CHRISTIANA BRENIN, M.D.'s NPI is 1972655934 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