Dr. Jonathan Vasilios Saguan Martin, MD
- Medicare services, 2024
- 1,000
- Medicare patients, 2024
- 500
- Part D claims, 2024
- 16
- Hospital affiliations
- 1
- Industry payments
- $680
- Practice address
- Health Sciences Center Suny, Stony Brook, NY 11794
- Practice phone
- Call (631) 444-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Martin's professional email, personal email and mobile number
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Dr. Jonathan Vasilios Saguan Martin is a general surgeon in Stony Brook, New York
Dr. Martin practices at Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University.
Dr. Martin's NPI, 1922443019, was assigned on May 3, 2013. Dr. Martin graduated from Loma Linda University School Of Medicine in 2013. Dr. Martin holds New York license 315942.
- NPI
- 1922443019NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668774514
- NPI enumeration date
- May 3, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 444-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan Vasilios Saguan Martin practices at 2 locations in Stony Brook, New York
Dr. Martin's primary practice is Stony Brook University Hospital, at Health Sciences Center Suny, Stony Brook, NY 11794 in Suffolk County. The practice phone is (631) 444-4000. Dr. Martin also practices at Stony Brook University Hospital, 101 Nicolls Rd, Stony Brook, NY 11794.
- Stony Brook University HospitalPrimaryHealth Sciences Center Suny, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4000
- Stony Brook University Hospital101 Nicolls Rd, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4100
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Jonathan Vasilios Saguan Martin is affiliated with 3 sites of care and 1 medical group
Dr. Martin's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. The medical group on file is Stony Brook Surgical Associates. Dmand AI also links Dr. Martin to 1 more clinical lab 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 Dr. Jonathan Vasilios Saguan Martin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Martin practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stony Brook University Hospital | Available with a free account |
| +2 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 Stony Brook University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathan Vasilios Saguan Martin is one of 1,604 general surgeons in New York
Surgery is Dr. Martin's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Martin's licenses on file in 4 states: New York, Arizona, Michigan and Minnesota.
Specialties and state licenses
- Surgery, New YorkPrimary
- Arizona license
- Michigan license
- Minnesota license
General surgeons near Dr. Martin
Counts of general surgeons 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. Jonathan Vasilios Saguan Martin billed Medicare for 1,000 services in 2024
CMS data shows 1,000 Medicare services from Dr. Martin across 10 procedure codes in 2024, for 500 Medicare patients. Medicare paid $82,414 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Martin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8222024: 1,00022%
Dr. Martin compared with the New York median for general surgeons, 2024
- Dr. Martin
- New York median
- Medicare services
- 1,000vs 1546.5 times
- Medicare patients
- 500vs 1094.6 times
- Part D claims
- 19vs 2421% below
Medians across 1,502 general surgeons in New York with Dmand AI profiles that report each measure.
Dr. Martin'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. Martin and other general surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Vasilios Saguan Martin treated 500 Medicare patients in 2024, average age 80
CMS counts 500 Medicare patients who saw Dr. Martin in 2024. The largest group is 75 to 84, with 219 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.42, 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. Martin's median patient age at 68, with 50% women.
Dr. Martin's Medicare patients by age, 2024
Dr. Martin's Medicare patients by sex, 2024
- Women26854%
- Men23246%
Chronic conditions among Dr. Martin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease63%
- Arthritis61%
- Mood disorders55%
- Depression50%
- Atrial fibrillation49%
- Diabetes48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Martin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan Vasilios Saguan Martin wrote 16 Medicare Part D claims in 2024
In 2024, Dr. Martin wrote 16 Medicare Part D claims. 94% of them were for generic drugs. They cover 1 drug, with $125 in total drug cost.
Dr. Martin's Part D claims by kind of drug, 2024
- Generic15 claims94%
- Brand-name and other1 claims6%
Dr. Martin's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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
How Dr. Jonathan Vasilios Saguan Martin takes part in Medicare
Dr. Martin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jonathan Vasilios Saguan Martin received $680 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Martin from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 91% of the total. Boston Scientific Corporation paid the most, $373.
General payments to Dr. Martin by program year, 2016 to 2025
General payments to Dr. Martin by kind, 2016 to 2025
- Food and beverage$62191%
- Travel and lodging$589%
Companies that paid Dr. Martin 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. Jonathan Vasilios Saguan Martin graduated from Loma Linda University School Of Medicine
Dr. Martin graduated from Loma Linda University School Of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan Vasilios Saguan Martin'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 Affiliation DataDmand AI Practice 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)Doctors and Clinicians Utilization Data (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. Jonathan Vasilios Saguan Martin
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. Jonathan Vasilios Saguan Martin's NPI number?
Dr. Jonathan Vasilios Saguan Martin's NPI number is 1922443019. It was assigned on May 3, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Vasilios Saguan Martin?
Dr. Jonathan Vasilios Saguan Martin is a general surgeon in Stony Brook, New York. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Jonathan Vasilios Saguan Martin practice?
Dr. Martin practices at Health Sciences Center Suny, Stony Brook, NY 11794. Dr. Martin also practices at 101 Nicolls Rd, Stony Brook, NY 11794. Dr. Martin's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. Dmand AI also links Dr. Martin to 1 clinical lab and 1 group practice or clinic.
What is Dr. Jonathan Vasilios Saguan Martin's office phone number?
The practice phone on file for Dr. Martin is (631) 444-4000.
What is Dr. Jonathan Vasilios Saguan Martin's medical license number?
Dr. Martin holds New York license 315942, one of the licenses on file in 4 states.
Which states has Dr. Jonathan Vasilios Saguan Martin been licensed in?
Dmand AI has state licenses on file for Dr. Martin in New York, Arizona, Michigan and Minnesota.
Which hospitals is Dr. Jonathan Vasilios Saguan Martin affiliated with?
Dr. Martin practices at Stony Brook University Hospital in Stony Brook, New York.
What medical group is Dr. Jonathan Vasilios Saguan Martin part of?
Dr. Martin is linked to Stony Brook Surgical Associates.
Does Dr. Jonathan Vasilios Saguan Martin accept Medicare?
Yes. CMS data shows Dr. Martin billed Medicare for 1,000 services in 2024, and Dr. Martin accepts Medicare assignment.
How many Medicare patients does Dr. Jonathan Vasilios Saguan Martin see?
CMS counts 500 Medicare patients who saw Dr. Martin in 2024, with an average age of 80.
Show 5 more questionsShow fewer questions
What services does Dr. Jonathan Vasilios Saguan Martin bill to Medicare?
In 2024, Dr. Martin's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99222).
Where did Dr. Jonathan Vasilios Saguan Martin go to medical school?
Dr. Martin graduated from Loma Linda University School Of Medicine in 2013.
What drugs does Dr. Jonathan Vasilios Saguan Martin prescribe most?
In 2017 Medicare Part D data, Dr. Martin's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Jonathan Vasilios Saguan Martin received payments from drug or device companies?
CMS Open Payments shows $680 in general payments to Dr. Martin from 5 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Jonathan Vasilios Saguan Martin been practicing?
Dr. Martin graduated from medical school in 2013, 13 years ago.
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