Dr. Nina Dayen, DO
- Medicare services, 2024
- 12
- Medicare patients, 2024
- 22
- Part D claims, 2024
- 891
- Industry payments
- $6,826
- Affiliated sites
- 2
- Practice address
- 1009 Brighton Beach Ave, Brooklyn, NY 11235
- Practice phone
- Call (718) 975-0657
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nina Dayen DO
Brooklyn, New York
Find Dr. Dayen'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. Nina Dayen is an internist in Brooklyn, New York
Dr. Dayen practices at Nina Dayen DO in Brooklyn, New York.
Dr. Dayen's NPI, 1821248386, was assigned on September 22, 2008. Dr. Dayen graduated from NYIT College Of Osteopathic Medicine in 2004. Dr. Dayen holds New York license 250014.
- NPI
- 1821248386NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850451410
- NPI enumeration date
- September 22, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (718) 975-0657
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nina Dayen practices at Nina Dayen DO in Brooklyn, New York
Dr. Dayen's primary practice is Nina Dayen DO, at 1009 Brighton Beach Ave, Brooklyn, NY 11235 in Kings County. The practice phone is (718) 975-0657.
- Nina Dayen DO1009 Brighton Beach Ave, Brooklyn, NY 11235 · Kings CountyPhone(718) 975-0657
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nina Dayen is affiliated with 3 sites of care and 2 medical groups
Dr. Dayen's primary practice is Nina Dayen DO in Brooklyn, New York. The medical group on file is Medex Diagnostic and Treatment Center. Dmand AI also links Dr. Dayen to 1 more physician office, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nina Dayen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dayen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nina Dayen DO | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nina Dayen is one of 9,643 internists in New York
Internal medicine is Dr. Dayen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Dayen is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Dayen
Counts of internists 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. Nina Dayen billed Medicare for 12 services in 2024
CMS data shows 12 Medicare services from Dr. Dayen across 1 procedure code in 2024, all of them office visits, for 22 Medicare patients. Medicare paid $388 for them. Every service was in an office.
Dr. Dayen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5612024: 1298%
- Tests and treatments
- 2023: 1372024: 0100%
- Other services
- 2023: 422024: 0100%
- Surgery
- 2023: 2322024: 0100%
Dr. Dayen compared with the New York median for internists, 2024
- Dr. Dayen
- New York median
- Medicare services
- 12vs 42697% below
- Medicare patients
- 22vs 15886% below
- Part D claims
- 512vs 62218% below
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Dayen'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. Nina Dayen treated 22 Medicare patients in 2024, average age 74
CMS counts 22 Medicare patients who saw Dr. Dayen in 2024. The largest group is 65 to 74, with 11 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dayen's median patient age at 62, with 67% women.
Dr. Dayen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Dayen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis73%
- Ischemic heart disease55%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dayen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women67%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nina Dayen wrote 891 Medicare Part D claims in 2024
In 2024, Dr. Dayen wrote 891 Medicare Part D claims for 123 patients. 68% of them were for generic drugs. CMS names the drug for 512 of them, across 23 drugs with 11 or more claims each, at $112,803 in total drug cost. In 2023, CMS named 5,860 claims across 112 drugs.
Dr. Dayen's Part D claims by kind of drug, 2024
- Generic609 claims68%
- Brand-name250 claims28%
- Other32 claims4%
Dr. Dayen'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: 5,8602024: 51291%
Drugs named by CMS: 23 in 2024, 112 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. Nina Dayen offers telehealth to Medicare patients
Dr. Dayen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dayen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nina Dayen received $6,826 in industry payments from 2016 to 2025
CMS Open Payments shows 236 general payments to Dr. Dayen from 43 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $635.
General payments to Dr. Dayen by program year, 2016 to 2025
General payments to Dr. Dayen by kind, 2016 to 2025
- Food and beverage$6,796100%
- Education$300%
Companies that paid Dr. Dayen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nina Dayen graduated from NYIT College Of Osteopathic Medicine
Dr. Dayen graduated from NYIT College Of Osteopathic Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nina Dayen'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 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. Nina Dayen
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. Nina Dayen's NPI number?
Dr. Nina Dayen's NPI number is 1821248386. It was assigned on September 22, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Nina Dayen?
Dr. Nina Dayen is an internist in Brooklyn, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nina Dayen practice?
Dr. Dayen practices at 1009 Brighton Beach Ave, Brooklyn, NY 11235. Dr. Dayen's primary practice is Nina Dayen DO in Brooklyn, New York. Dmand AI also links Dr. Dayen to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. Nina Dayen's office phone number?
The practice phone on file for Dr. Dayen is (718) 975-0657.
What is Dr. Nina Dayen's medical license number?
Dr. Dayen holds New York license 250014.
What medical group is Dr. Nina Dayen part of?
Dr. Dayen is linked to Medex Diagnostic and Treatment Center. Dmand AI links Dr. Dayen to 1 more medical group.
Does Dr. Nina Dayen accept Medicare?
Yes. CMS data shows Dr. Dayen billed Medicare for 12 services in 2024, and Dr. Dayen accepts Medicare assignment.
Does Dr. Nina Dayen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Dayen as offering telehealth services.
How many Medicare patients does Dr. Nina Dayen see?
CMS counts 22 Medicare patients who saw Dr. Dayen in 2024, with an average age of 74.
What services does Dr. Nina Dayen bill to Medicare?
In 2024, Dr. Dayen's most billed Medicare services were office visit, established patient (99213).
Show 4 more questionsShow fewer questions
Where did Dr. Nina Dayen go to medical school?
Dr. Dayen graduated from NYIT College Of Osteopathic Medicine in 2004.
What drugs does Dr. Nina Dayen prescribe most?
In 2024 Medicare Part D data, Dr. Dayen's most prescribed drugs by claims were Linzess, Diclofenac Sodium and Amlodipine Besylate.
Has Dr. Nina Dayen received payments from drug or device companies?
CMS Open Payments shows $6,826 in general payments to Dr. Dayen from 43 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Nina Dayen been practicing?
Dr. Dayen graduated from medical school in 2004, 22 years ago.
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