David M. Kochnower, PA
- Medicare patients, 2024
- 58
- Part D claims, 2024
- 31
- Hospital affiliations
- 2
- Industry payments
- $16
- Medical groups
- 2
- Practice address
- 75 North Country Road, Port Jefferson, NY 11777
- Practice phone
- Call (631) 473-1320
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find David Kochnower'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.
David M. Kochnower is a physician assistant in Port Jefferson, New York
David Kochnower practices at Mather Hospital in Port Jefferson, New York, part of Northwell Health.
David Kochnower's NPI, 1922654938, was assigned on August 15, 2019.
- NPI
- 1922654938NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436586567
- NPI enumeration date
- August 15, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 473-1320
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
David M. Kochnower practices at Mather Hospital in Port Jefferson, New York
David Kochnower's primary practice is Mather Hospital, at 75 North Country Road, Port Jefferson, NY 11777 in Suffolk County. The practice phone is (631) 473-1320.
- Mather Hospital75 North Country Road, Port Jefferson, NY 11777 · Suffolk CountyPhone(631) 473-1320
Source: Dmand AI Affiliation Data
David M. Kochnower is affiliated with 3 sites of care and 2 medical groups
David Kochnower's primary practice is Mather Hospital in Port Jefferson, New York, part of Northwell Health. David Kochnower is also affiliated with St. Catherine of Siena Hospital. The medical group on file is Samaritan Emergency Medical Services. Dmand AI also links David Kochnower to 1 more skilled nursing facility and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at David M. Kochnower's practice
Dmand AI tracks the electronic health record (EHR) system at each site where David Kochnower practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mather Hospital | Available with a free account |
| +2 more sites and 1 medical group | 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 Northwell Health and 6.2K+ hospitals, with verified contacts in the same login.
David M. Kochnower is one of 11,456 physician assistants in New York
Physician assistant is David Kochnower's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near David Kochnower
Counts of physician assistants 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
David M. Kochnower treated 58 Medicare patients in 2024, average age 74
CMS counts 58 Medicare patients who saw David Kochnower in 2024. The largest group is 75 to 84, with 28 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts David Kochnower's median patient age at 62, with 58% women.
David Kochnower's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
David Kochnower's Medicare patients by sex, 2024
- Women3153%
- Men2747%
Chronic conditions among David Kochnower's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis74%
- Ischemic heart disease38%
- Diabetes31%
- Anxiety29%
- Mood disorders26%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
David Kochnower'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
- Women58%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
David M. Kochnower wrote 31 Medicare Part D claims in 2024
In 2024, David Kochnower wrote 31 Medicare Part D claims for 26 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in David Kochnower's Part D claims, 2024
- Opioids71%22 of 31 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How David M. Kochnower takes part in Medicare
David Kochnower 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
David M. Kochnower received $16 in industry payments in 2025
CMS Open Payments shows 1 general payment to David Kochnower from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Inspire Medical Systems, Inc. paid the most, $16.
Companies that paid David Kochnower 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 David M. Kochnower'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | 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) |
| 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 David M. Kochnower
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is David M. Kochnower's NPI number?
David M. Kochnower's NPI number is 1922654938. It was assigned on August 15, 2019, and it is active in the NPI Registry.
What does David M. Kochnower specialize in?
David M. Kochnower is a physician assistant in Port Jefferson, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does David M. Kochnower practice?
David Kochnower practices at 75 North Country Road, Port Jefferson, NY 11777. David Kochnower's primary practice is Mather Hospital in Port Jefferson, New York, part of Northwell Health. Dmand AI also links David Kochnower to 1 skilled nursing facility and 1 medical group.
What is David M. Kochnower's office phone number?
The practice phone on file for David Kochnower is (631) 473-1320.
Which hospitals is David M. Kochnower affiliated with?
David Kochnower practices at Mather Hospital in Port Jefferson, New York. David Kochnower is also affiliated with St. Catherine of Siena Hospital.
What medical group is David M. Kochnower part of?
David Kochnower is linked to Samaritan Emergency Medical Services. Dmand AI links David Kochnower to 1 more medical group.
Does David M. Kochnower accept Medicare?
Yes. CMS lists David Kochnower as accepting Medicare assignment.
How many Medicare patients does David M. Kochnower see?
CMS counts 58 Medicare patients who saw David Kochnower in 2024, with an average age of 74.
Has David M. Kochnower received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to David Kochnower from 1 company from 2025 to 2025. The largest total came from Inspire Medical Systems, Inc.
How long has David M. Kochnower been practicing?
David Kochnower graduated from medical school in 2019, 7 years ago.
Selling to physician assistant practices?
See physician assistants in New York by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card