Naomi P. Ysimura
- Hospital affiliations
- 3
- Industry payments
- $171
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 1000 Montauk Highway, West Islip, NY 11795
- Practice phone
- Call (631) 376-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Naomi Ysimura'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.
Naomi P. Ysimura is a family nurse practitioner in West Islip, New York
Naomi Ysimura practices at Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre.
Naomi Ysimura's NPI, 1255138624, was assigned on February 25, 2025. Naomi Ysimura holds New York license 353764.
- NPI
- 1255138624NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911419395
- NPI enumeration date
- February 25, 2025
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 376-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Estimated age
- 28
- Medical school graduation
- 2024
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Naomi P. Ysimura practices at Good Samaritan University Hospital in West Islip, New York
Naomi Ysimura's primary practice is Good Samaritan University Hospital, at 1000 Montauk Highway, West Islip, NY 11795 in Suffolk County. The practice phone is (631) 376-3000.
- Good Samaritan University Hospital1000 Montauk Highway, West Islip, NY 11795 · Suffolk CountyPhone(631) 376-3000
Source: Dmand AI Affiliation Data
Naomi P. Ysimura is affiliated with 4 sites of care and 1 medical group
Naomi Ysimura's primary practice is Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre. Naomi Ysimura is also affiliated with St. Francis Hospital & Heart Center. The medical group on file is Cardiac Interventional Group. Dmand AI also links Naomi Ysimura to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Naomi P. Ysimura's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Naomi Ysimura practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Good Samaritan University Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Diocese of Rockville Centre and 6.2K+ hospitals, with verified contacts in the same login.
Naomi P. Ysimura is one of 10,214 family nurse practitioners in New York
Family is Naomi Ysimura's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Naomi Ysimura is licensed in New York.
Specialties and state licenses
- Family nurse practitioner, New YorkPrimary
Family nurse practitioners near Naomi Ysimura
Counts of family nurse practitioners 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
Naomi P. Ysimura's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Naomi Ysimura's median patient age at 61, with 67% women.
Naomi Ysimura's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women67%
- Men30%
Source: Dmand AI Patient Panel Data
How Naomi P. Ysimura takes part in Medicare
Naomi Ysimura accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Naomi P. Ysimura received $171 in industry payments in 2025
CMS Open Payments shows 3 general payments to Naomi Ysimura from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $125.
Companies that paid Naomi Ysimura the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Naomi P. Ysimura'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 Naomi P. Ysimura
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Naomi P. Ysimura's NPI number?
Naomi P. Ysimura's NPI number is 1255138624. It was assigned on February 25, 2025, and it is active in the NPI Registry.
What does Naomi P. Ysimura specialize in?
Naomi P. Ysimura is a family nurse practitioner in West Islip, New York. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Naomi P. Ysimura practice?
Naomi Ysimura practices at 1000 Montauk Highway, West Islip, NY 11795. Naomi Ysimura's primary practice is Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre. Dmand AI also links Naomi Ysimura to 1 hospital and 1 group practice or clinic.
What is Naomi P. Ysimura's office phone number?
The practice phone on file for Naomi Ysimura is (631) 376-3000.
What is Naomi P. Ysimura's medical license number?
Naomi Ysimura holds New York license 353764.
Which hospitals is Naomi P. Ysimura affiliated with?
Naomi Ysimura practices at Good Samaritan University Hospital in West Islip, New York. Naomi Ysimura is also affiliated with St. Francis Hospital & Heart Center. Dmand AI links Naomi Ysimura to 1 more hospital.
What medical group is Naomi P. Ysimura part of?
Naomi Ysimura is linked to Cardiac Interventional Group.
Does Naomi P. Ysimura accept Medicare?
Yes. CMS lists Naomi Ysimura as accepting Medicare assignment.
Has Naomi P. Ysimura received payments from drug or device companies?
CMS Open Payments shows $171 in general payments to Naomi Ysimura from 3 companies from 2025 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Naomi P. Ysimura been practicing?
Naomi Ysimura graduated from medical school in 2024, 2 years ago.
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