Dr. Mutlay Sayan, MD
- Medicare services, 2024
- 2,246
- Medicare patients, 2024
- 177
- Part D claims, 2024
- 34
- Hospital affiliations
- 3
- Industry payments
- $349
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Sayan'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. Mutlay Sayan is a radiation oncologist in Boston, Massachusetts
Dr. Sayan practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Sayan's NPI, 1821452160, was assigned on April 13, 2016. Dr. Sayan graduated from University of Vermont College of Medicine in 2016. Dr. Sayan holds Massachusetts license 287250.
- NPI
- 1821452160NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608161195
- NPI enumeration date
- April 13, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mutlay Sayan practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Sayan's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Mutlay Sayan is affiliated with 4 sites of care and 4 medical groups
Dr. Sayan's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Sayan is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Sayan to 1 more hospital, 3 medical groups and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mutlay Sayan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sayan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mutlay Sayan is one of 186 radiation oncologists in Massachusetts
Radiation oncology is Dr. Sayan's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Sayan is licensed in Massachusetts.
Specialties and state licenses
- Radiation oncology, MassachusettsPrimary
Radiation oncologists near Dr. Sayan
Counts of radiation 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. Mutlay Sayan billed Medicare for 2,246 services in 2024
CMS data shows 2,246 Medicare services from Dr. Sayan across 10 procedure codes in 2024, for 177 Medicare patients. Medicare paid $162,381 for them.
Dr. Sayan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,3512024: 2,10356%
- Office and hospital visits
- 2023: 1012024: 14342%
Where Dr. Sayan's Medicare services took place, 2024
- In an office573%
- In a facility2,18997%
Dr. Sayan compared with the Massachusetts median for radiation oncologists, 2024
- Dr. Sayan
- Massachusetts median
- Medicare services
- 2,246vs 1,16193% above
- Medicare patients
- 177vs 173Close to median
- Part D claims
- 30vs 2615% above
Medians across 182 radiation oncologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Sayan'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
Dr. Mutlay Sayan treated 177 Medicare patients in 2024, average age 73
CMS counts 177 Medicare patients who saw Dr. Sayan in 2024. The largest group is 65 to 74, with 105 patients. 75% of them have cancer, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sayan's median patient age at 69, with 4% women.
Dr. Sayan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Sayan's Medicare patients, 2024
- Cancer75%
- High cholesterol75%
- High blood pressure64%
- Arthritis29%
- Ischemic heart disease23%
- Diabetes21%
- Anxiety19%
- Chronic kidney disease17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sayan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women4%
- Men94%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mutlay Sayan wrote 34 Medicare Part D claims in 2024
In 2024, Dr. Sayan wrote 34 Medicare Part D claims for 24 patients. 100% of them were for generic drugs. CMS names the drug for 30 of them, across 1 drug with 11 or more claims each, at $309 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Sayan'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: 122024: 30150%
Drugs named by CMS: 1 in 2024, 1 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. Mutlay Sayan offers telehealth to Medicare patients
Dr. Sayan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sayan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mutlay Sayan received $349 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Dr. Sayan from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Blue Earth Diagnostics Limited paid the most, $198.
General payments to Dr. Sayan by program year, 2024 to 2025
Companies that paid Dr. Sayan the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mutlay Sayan graduated from University of Vermont College of Medicine
Dr. Sayan graduated from University of Vermont College of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mutlay Sayan'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Mutlay Sayan
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. Mutlay Sayan's NPI number?
Dr. Mutlay Sayan's NPI number is 1821452160. It was assigned on April 13, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Mutlay Sayan?
Dr. Mutlay Sayan is a radiation oncologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Mutlay Sayan practice?
Dr. Sayan practices at 75 Francis Street, Boston, MA 02115. Dr. Sayan's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Sayan to 1 hospital, 3 medical groups and 1 hospital outpatient department.
What is Dr. Mutlay Sayan's office phone number?
The practice phone on file for Dr. Sayan is (617) 732-5500.
What is Dr. Mutlay Sayan's medical license number?
Dr. Sayan holds Massachusetts license 287250.
Which hospitals is Dr. Mutlay Sayan affiliated with?
Dr. Sayan practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Sayan is also affiliated with Massachusetts General Hospital. Dmand AI links Dr. Sayan to 1 more hospital.
What medical group is Dr. Mutlay Sayan part of?
Dr. Sayan is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Sayan to 3 more medical groups.
Does Dr. Mutlay Sayan accept Medicare?
Yes. CMS data shows Dr. Sayan billed Medicare for 2,246 services in 2024, and Dr. Sayan accepts Medicare assignment.
Does Dr. Mutlay Sayan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Sayan as offering telehealth services.
How many Medicare patients does Dr. Mutlay Sayan see?
CMS counts 177 Medicare patients who saw Dr. Sayan in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Mutlay Sayan bill to Medicare?
In 2024, Dr. Sayan's most billed Medicare services were radiation oncology (77014), radiation oncology (77427) and radiation oncology (77300).
Where did Dr. Mutlay Sayan go to medical school?
Dr. Sayan graduated from University of Vermont College of Medicine in 2016.
What drugs does Dr. Mutlay Sayan prescribe most?
In 2024 Medicare Part D data, Dr. Sayan's most prescribed drugs by claims were Tamsulosin HCl.
Has Dr. Mutlay Sayan received payments from drug or device companies?
CMS Open Payments shows $349 in general payments to Dr. Sayan from 2 companies from 2024 to 2025. The largest total came from Blue Earth Diagnostics Limited.
How long has Dr. Mutlay Sayan been practicing?
Dr. Sayan graduated from medical school in 2016, 10 years ago.
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