Mariya Rozenblit

  • Greenwich, CT
  • Medical oncologist
NPI1215315015PAC ID5597002485
Medicare services, 2024
147
Medicare patients, 2024
87
Part D claims, 2024
354
Publications
33
MIPS score, 2024
87
Practice address
5 Perryridge Rd, Greenwich, CT 06830
Practice phone
Call (203) 863-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Greenwich Hospital

Hospital · Greenwich, Connecticut

See all 4 affiliations

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Mariya Rozenblit is a medical oncologist in Greenwich, Connecticut

Mariya Rozenblit practices at Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System.

Mariya Rozenblit's NPI, 1215315015, was assigned on May 12, 2015. Mariya Rozenblit graduated from Icahn School of Medicine at Mount Sinai in 2015. Mariya Rozenblit holds Connecticut license 68690.

NPI and contact details
Medicare PAC ID
5597002485
NPI enumeration date
May 12, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(203) 863-3000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Mariya Rozenblit practices at Greenwich Hospital in Greenwich, Connecticut

Mariya Rozenblit's primary practice is Greenwich Hospital, at 5 Perryridge Rd, Greenwich, CT 06830 in Fairfield County. The practice phone is (203) 863-3000.

  • Greenwich Hospital
    5 Perryridge Rd, Greenwich, CT 06830 · Fairfield CountyPhone(203) 863-3000

Source: Dmand AI Affiliation Data

Mariya Rozenblit is affiliated with 3 sites of care and 1 medical group

Mariya Rozenblit's primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Mariya Rozenblit is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links Mariya Rozenblit to 1 more hospital, named with a free account.

See all 4 affiliations for Mariya Rozenblit

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Mariya Rozenblit's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Mariya Rozenblit practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Greenwich HospitalAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Mariya Rozenblit is one of 80 medical oncologists in Connecticut

Medical oncology is Mariya Rozenblit's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Mariya Rozenblit is licensed in Connecticut.

Specialties and state licenses

  • Medical oncology, ConnecticutPrimaryLicense 68690 · taxonomy 207RX0202X

Medical oncologists near Mariya Rozenblit

Counts of medical oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Mariya Rozenblit billed Medicare for 147 services in 2024

CMS data shows 147 Medicare services from Mariya Rozenblit across 3 procedure codes in 2024, all of them office visits, for 87 Medicare patients. Medicare paid $13,761 for them.

Medicare services, 2024147
Medicare patients87
Paid by Medicare$13,761
Procedure codes3

Mariya Rozenblit's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1022024: 14744%

Where Mariya Rozenblit's Medicare services took place, 2024

  • In an office1913%
  • In a facility12887%

Mariya Rozenblit compared with the Connecticut median for medical oncologists, 2024

  • Mariya Rozenblit
  • Connecticut median
Medicare services
147vs 25242% below
Medicare patients
87vs 969% below
Part D claims
291vs 19648% above

Medians across 76 medical oncologists in Connecticut with Dmand AI profiles that report each measure.

Mariya Rozenblit's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Mariya Rozenblit treated 87 Medicare patients in 2024, average age 75

CMS counts 87 Medicare patients who saw Mariya Rozenblit in 2024. The largest group is 75 to 84, with 40 patients. 75% of them have cancer, and 75% have high cholesterol. Their average risk score is 1.06, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Mariya Rozenblit's median patient age at 71, with 97% women.

Medicare patients, 202487
Average age75
Average risk score1.06

Mariya Rozenblit's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Mariya Rozenblit's Medicare patients, 2024

  1. Cancer75%
  2. High cholesterol75%
  3. High blood pressure56%
  4. Arthritis53%
  5. Osteoporosis44%
  6. Anxiety26%
  7. Mood disorders23%
  8. Depression21%

Share of Medicare patients with each condition. A patient can have several.

Mariya Rozenblit's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women97%
  • Men1%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Mariya Rozenblit wrote 354 Medicare Part D claims in 2024

In 2024, Mariya Rozenblit wrote 354 Medicare Part D claims for 85 patients. 89% of them were for generic drugs. CMS names the drug for 291 of them, across 6 drugs with 11 or more claims each, at $539,779 in total drug cost. In 2023, CMS named 131 claims across 3 drugs.

Part D claims, 2024354
Drugs named by CMS6
Total drug cost$539,779
Part D patients85

Mariya Rozenblit's Part D claims by kind of drug, 2024

  • Generic314 claims89%
  • Brand-name40 claims11%

Mariya Rozenblit's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1312024: 291122%

Drugs named by CMS: 6 in 2024, 3 in 2023.

See all prescribing by Mariya Rozenblit

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Mariya Rozenblit scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Mariya Rozenblit for performance year 2024, reported as part of a group. Mariya Rozenblit accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Mariya Rozenblit as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Mariya Rozenblit's MIPS scores, performance year 2024

  • 87of 100Final score
  • 77.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Mariya Rozenblit has 33 publications on record

Dmand AI links 33 papers to Mariya Rozenblit, published from 2014 to 2025. 2014 was the busiest year, with 5. The most frequent topics are Breast Neoplasms, Biomarkers, Tumor and Germ-Line Mutation. Mariya Rozenblit has published most often in Breast Cancer Res. Mariya Rozenblit's most frequent co-authors are Lajos Pusztai, MD, James Krueger, MD, PhD and Julia Foldi, MD.

Papers33
Years published2014 to 2025

Mariya Rozenblit's papers by year, 2014 to 2025

Topics Mariya Rozenblit writes about most

  • Breast Neoplasms
  • Biomarkers, Tumor
  • Germ-Line Mutation
  • BRCA1 Protein
  • BRCA2 Protein
  • Genetic Predisposition to Disease
  • Genomics
  • Neoadjuvant Therapy

Mariya Rozenblit's most frequent co-authors

Recent publications by Mariya Rozenblit

See all 33 publications and co-authors

See who Mariya Rozenblit researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Mariya Rozenblit works with, so you can find a warm path to the right medical oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Mariya Rozenblit received $7,272 in industry payments from 2022 to 2025

CMS Open Payments shows 7 general payments to Mariya Rozenblit from 4 drug and device companies from 2022 to 2025. Consulting fees make up the largest share, 94% of the total. AstraZeneca Pharmaceuticals LP paid the most, $5,020. It also lists 1 research payment totaling $763 in 2024.

General payments to Mariya Rozenblit by program year, 2022 to 2025

General payments to Mariya Rozenblit by kind, 2022 to 2025

$7.3Kin total
  • Consulting fees$6,87094%
  • Grants$3505%
  • Food and beverage$521%

Companies that paid Mariya Rozenblit the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to Mariya Rozenblit

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Mariya Rozenblit graduated from Icahn School of Medicine at Mount Sinai

Mariya Rozenblit graduated from Icahn School of Medicine at Mount Sinai in 2015.

  1. Medical schoolIcahn School of Medicine at Mount Sinai

Source: Dmand AI Professional Profile Data

Sources for Mariya Rozenblit's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Mariya Rozenblit

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Mariya Rozenblit's NPI number?

Mariya Rozenblit's NPI number is 1215315015. It was assigned on May 12, 2015, and it is active in the NPI Registry.

What does Mariya Rozenblit specialize in?

Mariya Rozenblit is a medical oncologist in Greenwich, Connecticut. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).

Where does Mariya Rozenblit practice?

Mariya Rozenblit practices at 5 Perryridge Rd, Greenwich, CT 06830. Mariya Rozenblit's primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Dmand AI also links Mariya Rozenblit to 1 hospital.

What is Mariya Rozenblit's office phone number?

The practice phone on file for Mariya Rozenblit is (203) 863-3000.

What is Mariya Rozenblit's medical license number?

Mariya Rozenblit holds Connecticut license 68690.

Which hospitals is Mariya Rozenblit affiliated with?

Mariya Rozenblit practices at Greenwich Hospital in Greenwich, Connecticut. Mariya Rozenblit is also affiliated with Yale New Haven Hospital. Dmand AI links Mariya Rozenblit to 1 more hospital.

What medical group is Mariya Rozenblit part of?

Mariya Rozenblit is linked to Yale Health.

Does Mariya Rozenblit accept Medicare?

Yes. CMS data shows Mariya Rozenblit billed Medicare for 147 services in 2024, and Mariya Rozenblit accepts Medicare assignment.

Does Mariya Rozenblit offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Mariya Rozenblit as offering telehealth services.

What is Mariya Rozenblit's MIPS score?

Mariya Rozenblit's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

Show 8 more questionsShow fewer questions

How many Medicare patients does Mariya Rozenblit see?

CMS counts 87 Medicare patients who saw Mariya Rozenblit in 2024, with an average age of 75.

What services does Mariya Rozenblit bill to Medicare?

In 2024, Mariya Rozenblit's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99205).

Where did Mariya Rozenblit go to medical school?

Mariya Rozenblit graduated from Icahn School of Medicine at Mount Sinai in 2015.

What drugs does Mariya Rozenblit prescribe most?

In 2024 Medicare Part D data, Mariya Rozenblit's most prescribed drugs by claims were Anastrozole, Letrozole and Tamoxifen Citrate.

Has Mariya Rozenblit received payments from drug or device companies?

CMS Open Payments shows $7,272 in general payments to Mariya Rozenblit from 4 companies from 2022 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Mariya Rozenblit been practicing?

Mariya Rozenblit graduated from medical school in 2015, 11 years ago.

Does Mariya Rozenblit do research?

Dmand AI links 33 publications to Mariya Rozenblit, published from 2014 to 2025.

Who does Mariya Rozenblit publish with?

Mariya Rozenblit's most frequent co-authors are Lajos Pusztai, MD (15 shared papers), James Krueger, MD, PhD (5 shared papers) and Julia Foldi, MD (4 shared papers).

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