Dr. Jose Valentin Diaz, DO
- Medicare services, 2024
- 702
- Medicare patients, 2024
- 387
- Hospital affiliations
- 3
- Industry payments
- $1,014
- Medical groups
- 3
- 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 Dr. Diaz's professional email, personal email and mobile number
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Dr. Jose Valentin Diaz is a general surgeon in West Islip, New York
Dr. Diaz practices at Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre.
Dr. Diaz's NPI, 1740564533, was assigned on September 28, 2011. Dr. Diaz graduated from Touro University Nevada College of Osteopathic Medicine in 2011. Dr. Diaz holds Maine license LT18018.
- NPI
- 1740564533NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113277427
- NPI enumeration date
- September 28, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 376-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jose Valentin Diaz practices at Good Samaritan University Hospital in West Islip, New York
Dr. Diaz'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
Dr. Jose Valentin Diaz is affiliated with 3 sites of care and 3 medical groups
Dr. Diaz's primary practice is Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre. Dr. Diaz is also affiliated with NYU Langone Hospital-Suffolk. The medical group on file is Samaritan Emergency Medical Services. Dmand AI also links Dr. Diaz to 1 more hospital and 2 medical groups, 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. Jose Valentin Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 3 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 |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jose Valentin Diaz is one of 1,604 general surgeons in New York
Surgery is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Diaz's licenses on file in 2 states: Maine and New York.
Specialties and state licenses
- Surgery, MainePrimary
- New York license
General surgeons near Dr. Diaz
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. Jose Valentin Diaz billed Medicare for 702 services in 2024
CMS data shows 702 Medicare services from Dr. Diaz across 6 procedure codes in 2024, for 387 Medicare patients. Medicare paid $32,454 for them.
Dr. Diaz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6942024: 7021%
Where Dr. Diaz's Medicare services took place, 2024
- In an office213%
- In a facility68197%
Dr. Diaz compared with the New York median for general surgeons, 2024
- Dr. Diaz
- New York median
- Medicare services
- 702vs 1544.6 times
- Medicare patients
- 387vs 1093.6 times
Medians across 1,502 general surgeons in New York with Dmand AI profiles that report each measure.
Dr. Diaz'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. Diaz 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. Jose Valentin Diaz treated 387 Medicare patients in 2024, average age 81
CMS counts 387 Medicare patients who saw Dr. Diaz in 2024. The largest group is 75 to 84, with 150 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 2.37, 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. Diaz's median patient age at 80, with 56% women.
Dr. Diaz's Medicare patients by age, 2024
Dr. Diaz's Medicare patients by sex, 2024
- Women22257%
- Men16543%
Chronic conditions among Dr. Diaz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis70%
- Ischemic heart disease68%
- Chronic kidney disease51%
- Diabetes49%
- Mood disorders47%
- Atrial fibrillation44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Jose Valentin Diaz takes part in Medicare
Dr. Diaz 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)
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. Jose Valentin Diaz received $1,014 in industry payments from 2018 to 2024
CMS Open Payments shows 21 general payments to Dr. Diaz from 4 drug and device companies from 2018 to 2024. Travel and lodging make up the largest share, 62% of the total. Zimmer Biomet Holdings, Inc. paid the most, $759.
General payments to Dr. Diaz by program year, 2018 to 2024
General payments to Dr. Diaz by kind, 2018 to 2024
- Travel and lodging$62962%
- Food and beverage$38538%
Companies that paid Dr. Diaz the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jose Valentin Diaz graduated from Touro University Nevada College of Osteopathic Medicine
Dr. Diaz graduated from Touro University Nevada College of Osteopathic Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jose Valentin Diaz'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) |
| 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. Jose Valentin Diaz
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. Jose Valentin Diaz's NPI number?
Dr. Jose Valentin Diaz's NPI number is 1740564533. It was assigned on September 28, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Jose Valentin Diaz?
Dr. Jose Valentin Diaz is a general surgeon in West Islip, New York. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Jose Valentin Diaz practice?
Dr. Diaz practices at 1000 Montauk Highway, West Islip, NY 11795. Dr. Diaz's primary practice is Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre. Dmand AI also links Dr. Diaz to 1 hospital and 2 medical groups.
What is Dr. Jose Valentin Diaz's office phone number?
The practice phone on file for Dr. Diaz is (631) 376-3000.
What is Dr. Jose Valentin Diaz's medical license number?
Dr. Diaz holds Maine license LT18018, one of the licenses on file in 2 states.
Which states has Dr. Jose Valentin Diaz been licensed in?
Dmand AI has state licenses on file for Dr. Diaz in Maine and New York.
Which hospitals is Dr. Jose Valentin Diaz affiliated with?
Dr. Diaz practices at Good Samaritan University Hospital in West Islip, New York. Dr. Diaz is also affiliated with NYU Langone Hospital-Suffolk. Dmand AI links Dr. Diaz to 1 more hospital.
What medical group is Dr. Jose Valentin Diaz part of?
Dr. Diaz is linked to Samaritan Emergency Medical Services. Dmand AI links Dr. Diaz to 2 more medical groups.
Does Dr. Jose Valentin Diaz accept Medicare?
Yes. CMS data shows Dr. Diaz billed Medicare for 702 services in 2024, and Dr. Diaz accepts Medicare assignment.
How many Medicare patients does Dr. Jose Valentin Diaz see?
CMS counts 387 Medicare patients who saw Dr. Diaz in 2024, with an average age of 81.
Show 4 more questionsShow fewer questions
What services does Dr. Jose Valentin Diaz bill to Medicare?
In 2024, Dr. Diaz's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99221) and hospital inpatient care (99238).
Where did Dr. Jose Valentin Diaz go to medical school?
Dr. Diaz graduated from Touro University Nevada College of Osteopathic Medicine in 2011.
Has Dr. Jose Valentin Diaz received payments from drug or device companies?
CMS Open Payments shows $1,014 in general payments to Dr. Diaz from 4 companies from 2018 to 2024. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Jose Valentin Diaz been practicing?
Dr. Diaz graduated from medical school in 2011, 15 years ago.
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