Dr. Maria Constantinou, MD
- Medicare services, 2024
- 369
- Medicare patients, 2024
- 162
- Part D claims, 2024
- 359
- Publications
- 4
- Clinical trials
- 4
- Practice address
- 593 Eddy St, Providence, RI 02903
- Practice phone
- Call (401) 444-6966
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rhode Island Hospital/Hasbro Children's
Providence, Rhode Island
Find Dr. Constantinou's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Maria Constantinou is a hematologist and oncologist in Providence, Rhode Island
Dr. Constantinou practices at Rhode Island Hospital/Hasbro Children's in Providence, Rhode Island.
Dr. Constantinou's NPI, 1407999444, was assigned on February 15, 2007. Dr. Constantinou holds Rhode Island license MD10436.
- NPI
- 1407999444NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860598885
- NPI enumeration date
- February 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (401) 444-6966
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Maria Constantinou practices at Rhode Island Hospital/Hasbro Children's in Providence, Rhode Island
Dr. Constantinou's primary practice is Rhode Island Hospital/Hasbro Children's, at 593 Eddy St, Providence, RI 02903 in Providence County. The practice phone is (401) 444-6966.
- Rhode Island Hospital/Hasbro Children's593 Eddy St, Providence, RI 02903 · Providence CountyPhone(401) 444-6966
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Maria Constantinou is affiliated with 5 sites of care and 2 medical groups
Dr. Constantinou's primary practice is Rhode Island Hospital/Hasbro Children's in Providence, Rhode Island. Dr. Constantinou is also affiliated with The Miriam Hospital. The medical group on file is Rhode Island Hospital. Dmand AI also links Dr. Constantinou to 2 more hospitals, 1 hospice and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Maria Constantinou's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Constantinou practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rhode Island Hospital/Hasbro Children's | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Maria Constantinou is one of 69 hematologists and oncologists in Rhode Island
Hematology and oncology is Dr. Constantinou's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Constantinou is licensed in Rhode Island.
Specialties and state licenses
- Hematology and oncology, Rhode IslandPrimary
Hematologists and oncologists near Dr. Constantinou
Counts of hematologists and 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
Dr. Maria Constantinou billed Medicare for 369 services in 2024
CMS data shows 369 Medicare services from Dr. Constantinou across 4 procedure codes in 2024, all of them office visits, for 162 Medicare patients. Medicare paid $29,322 for them.
Dr. Constantinou's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3232024: 36914%
Where Dr. Constantinou's Medicare services took place, 2024
- In an office16043%
- In a facility20957%
Dr. Constantinou compared with the Rhode Island median for hematologists and oncologists, 2024
- Dr. Constantinou
- Rhode Island median
- Medicare services
- 369vs 370Close to median
- Medicare patients
- 162vs 166Close to median
- Part D claims
- 240vs 39339% below
Medians across 68 hematologists and oncologists in Rhode Island with Dmand AI profiles that report each measure.
Dr. Constantinou'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Constantinou and other hematologists and oncologists in Rhode Island.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Maria Constantinou treated 162 Medicare patients in 2024, average age 76
CMS counts 162 Medicare patients who saw Dr. Constantinou in 2024. The largest group is 75 to 84, with 69 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.60, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Constantinou's median patient age at 73, with 69% women.
Dr. Constantinou's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Constantinou's Medicare patients by sex, 2024
- Women11269%
- Men5031%
Chronic conditions among Dr. Constantinou's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer67%
- Arthritis56%
- Anxiety31%
- Diabetes29%
- Ischemic heart disease27%
- Mood disorders25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Constantinou's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Maria Constantinou wrote 359 Medicare Part D claims in 2024
In 2024, Dr. Constantinou wrote 359 Medicare Part D claims for 116 patients. 91% of them were for generic drugs. CMS names the drug for 240 of them, across 10 drugs with 11 or more claims each, at $166,217 in total drug cost. In 2023, CMS named 275 claims across 9 drugs.
Dr. Constantinou's Part D claims by kind of drug, 2024
- Generic327 claims91%
- Brand-name32 claims9%
Dr. Constantinou'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: 2752024: 24013%
Drugs named by CMS: 10 in 2024, 9 in 2023.
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
Dr. Maria Constantinou offers telehealth to Medicare patients
Dr. Constantinou accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Constantinou as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Maria Constantinou has 4 publications on record
Dmand AI links 4 papers to Dr. Constantinou, published from 2012 to 2020. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols. Dr. Constantinou has published most often in Am J Clin Oncol. Dr. Constantinou's most frequent co-authors are Kalyan C. Mantripragada, MD, David Berz, MD, MPH, PhD and Deus J. Cielo, MD.
Topics Dr. Constantinou writes about most
- Antineoplastic Combined Chemotherapy Protocols
Dr. Constantinou's most frequent co-authors
- Kalyan C. Mantripragada, MD2 shared papers
- David Berz, MD, MPH, PhD1 shared paper
- Deus J. Cielo, MD1 shared paper
Recent publications by Dr. Constantinou
See who Dr. Constantinou researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Constantinou works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Maria Constantinou has worked on 4 clinical trials
Dmand AI links Dr. Constantinou to 4 clinical trials, 3 of them phase 3 studies. 4 are still active or recruiting. Conditions studied include Melanoma, Nevi and Melanomas and Carcinoma, Intraductal, Noninfiltrating. National Cancer Institute (NCI) sponsors the most, 3.
Clinical trials with Dr. Constantinou by phase
- NonePhase 1: no trials
- 1Phase 2: 1 trial
- 3Phase 3: 3 trials
- NonePhase 4: no trials
Conditions in Dr. Constantinou's trials
- Melanoma
- Nevi and Melanomas
- Carcinoma, Intraductal, Noninfiltrating
- Breast Carcinoma In Situ
Investigators on the most trials with Dr. Constantinou
- Steven Alan Akman, MD3 shared trials
- Mehmet Sitki Copur, MD3 shared trials
- Lawrence E. Flaherty, MD3 shared trials
Recent clinical trials with Dr. Constantinou
Adjuvant Nivolumab and Low Dose Ipilimumab for Stage III and Resected Stage IV Melanoma: A Phase II Brown University Oncology Research Group Trial (opens in a new tab)
Physician/Patient Choice of Either High-Dose Recombinant Interferon Alfa-2B or Ipilimumab, Versus Pembrolizumab in Treating Patients With Stage III-IV High Risk Melanoma That Has Been Removed by Surgery (opens in a new tab)
Dabrafenib and Trametinib Followed by Ipilimumab and Nivolumab or Ipilimumab and Nivolumab Followed by Dabrafenib and Trametinib in Treating Patients With Stage III-IV BRAFV600 Melanoma (opens in a new tab)
Tamoxifen Citrate, Letrozole, Anastrozole, or Exemestane With or Without Chemotherapy in Treating Patients With Invasive RxPONDER Breast Cancer (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Maria Constantinou received $629 in industry payments from 2016 to 2021
CMS Open Payments shows 20 general payments to Dr. Constantinou from 6 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 68% of the total. Bristol-Myers Squibb Company paid the most, $236.
General payments to Dr. Constantinou by program year, 2016 to 2021
General payments to Dr. Constantinou by kind, 2016 to 2021
- Food and beverage$43068%
- Education$12520%
- Travel and lodging$7312%
Companies that paid Dr. Constantinou the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Maria Constantinou's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Maria Constantinou
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Maria Constantinou's NPI number?
Dr. Maria Constantinou's NPI number is 1407999444. It was assigned on February 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Maria Constantinou?
Dr. Maria Constantinou is a hematologist and oncologist in Providence, Rhode Island. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Maria Constantinou practice?
Dr. Constantinou practices at 593 Eddy St, Providence, RI 02903. Dr. Constantinou's primary practice is Rhode Island Hospital/Hasbro Children's in Providence, Rhode Island. Dmand AI also links Dr. Constantinou to 2 hospitals, 1 hospice and 1 medical group.
What is Dr. Maria Constantinou's office phone number?
The practice phone on file for Dr. Constantinou is (401) 444-6966.
What is Dr. Maria Constantinou's medical license number?
Dr. Constantinou holds Rhode Island license MD10436.
Which hospitals is Dr. Maria Constantinou affiliated with?
Dr. Constantinou is affiliated with The Miriam Hospital. Dmand AI links Dr. Constantinou to 2 more hospitals.
What medical group is Dr. Maria Constantinou part of?
Dr. Constantinou is linked to Rhode Island Hospital. Dmand AI links Dr. Constantinou to 1 more medical group.
Does Dr. Maria Constantinou accept Medicare?
Yes. CMS data shows Dr. Constantinou billed Medicare for 369 services in 2024, and Dr. Constantinou accepts Medicare assignment.
Does Dr. Maria Constantinou offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Constantinou as offering telehealth services.
How many Medicare patients does Dr. Maria Constantinou see?
CMS counts 162 Medicare patients who saw Dr. Constantinou in 2024, with an average age of 76.
Show 6 more questionsShow fewer questions
What services does Dr. Maria Constantinou bill to Medicare?
In 2024, Dr. Constantinou's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, established patient (99213).
What drugs does Dr. Maria Constantinou prescribe most?
In 2024 Medicare Part D data, Dr. Constantinou's most prescribed drugs by claims were Anastrozole, Letrozole and Ondansetron HCl.
Has Dr. Maria Constantinou received payments from drug or device companies?
CMS Open Payments shows $629 in general payments to Dr. Constantinou from 6 companies from 2016 to 2021. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Maria Constantinou been practicing?
Dr. Constantinou graduated from medical school in 1997, 29 years ago.
Does Dr. Maria Constantinou do research?
Dmand AI links 4 publications to Dr. Constantinou, published from 2012 to 2020. Dr. Constantinou has worked on 4 clinical trials.
Who does Dr. Maria Constantinou publish with?
Dr. Constantinou's most frequent co-authors are Kalyan C. Mantripragada, MD (2 shared papers), David Berz, MD, MPH, PhD (1 shared paper) and Deus J. Cielo, MD (1 shared paper).
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