Dennis Michael Jack, FNP
- Medicare patients, 2024
- 125
- Part D claims, 2024
- 1,888
- MIPS score, 2024
- 91
- Hospital affiliations
- 5
- Industry payments
- $273
- Practice address
- 462 Grider Street, Buffalo, NY 14215
- Practice phone
- Call (716) 898-3936
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dennis Jack'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.
Dennis Michael Jack is a family nurse practitioner in Buffalo, New York
Dennis Jack practices at Erie County Medical Center in Buffalo, New York, part of Erie County Medical Center.
Dennis Jack's NPI, 1659858827, was assigned on July 20, 2018. Dennis Jack holds New York license 343352.
- NPI
- 1659858827NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678822939
- NPI enumeration date
- July 20, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (716) 898-3936
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dennis Michael Jack practices at Erie County Medical Center in Buffalo, New York
Dennis Jack's primary practice is Erie County Medical Center, at 462 Grider Street, Buffalo, NY 14215 in Erie County. The practice phone is (716) 898-3936.
- Erie County Medical Center462 Grider Street, Buffalo, NY 14215 · Erie CountyPhone(716) 898-3936
Source: Dmand AI Affiliation Data
Dennis Michael Jack is affiliated with 6 sites of care and 3 medical groups
Dennis Jack's primary practice is Erie County Medical Center in Buffalo, New York, part of Erie County Medical Center. Dennis Jack is also affiliated with Buffalo General Medical Center/Gates Vascular Institute. The medical group on file is Erie County Medical Center (ECMC). Dmand AI also links Dennis Jack to 3 more hospitals, 2 medical groups and 1 dialysis center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dennis Michael Jack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dennis Jack practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Erie County Medical Center | Available with a free account |
| +5 more sites and 2 medical groups | 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 Erie County Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dennis Michael Jack is one of 10,214 family nurse practitioners in New York
Family is Dennis Jack's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Dennis Jack is licensed in New York.
Specialties and state licenses
- Family nurse practitioner, New YorkPrimary
Family nurse practitioners near Dennis Jack
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
Dennis Michael Jack treated 125 Medicare patients in 2024, average age 58
CMS counts 125 Medicare patients who saw Dennis Jack in 2024. The largest group is under 65, with 78 patients. 75% of them have chronic kidney disease, and 75% have diabetes. 50% are also on Medicaid. Their average risk score is 5.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dennis Jack's median patient age at 61, with 39% women.
Dennis Jack's Medicare patients by age, 2024
Dennis Jack's Medicare patients by sex, 2024
- Women4435%
- Men8165%
Chronic conditions among Dennis Jack's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Anxiety42%
- Heart failure42%
- Mood disorders42%
- Ischemic heart disease41%
Share of Medicare patients with each condition. A patient can have several.
Dennis Jack'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
- Women39%
- Men61%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dennis Michael Jack wrote 1,888 Medicare Part D claims in 2024
In 2024, Dennis Jack wrote 1,888 Medicare Part D claims for 238 patients. 91% of them were for generic drugs.
Dennis Jack's Part D claims by kind of drug, 2024
- Generic1,721 claims91%
- Brand-name153 claims8%
- Other14 claims1%
Drug classes CMS tracks in Dennis Jack's Part D claims, 2024
- Antibiotics6%108 of 1,888 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
Dennis Michael Jack scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dennis Jack for performance year 2024, reported as part of a group. Dennis Jack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dennis Jack as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dennis Jack's MIPS scores, performance year 2024
- 91of 100Final score
- 80.2of 100Quality
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dennis Michael Jack received $273 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dennis Jack from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Travere Therapeutics, Inc. paid the most, $148.
Companies that paid Dennis Jack 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 Dennis Michael Jack'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)Clinician Public Reporting: Overall MIPS Performance (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 Dennis Michael Jack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dennis Michael Jack's NPI number?
Dennis Michael Jack's NPI number is 1659858827. It was assigned on July 20, 2018, and it is active in the NPI Registry.
What does Dennis Michael Jack specialize in?
Dennis Michael Jack is a family nurse practitioner in Buffalo, New York. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Dennis Michael Jack practice?
Dennis Jack practices at 462 Grider Street, Buffalo, NY 14215. Dennis Jack's primary practice is Erie County Medical Center in Buffalo, New York, part of Erie County Medical Center. Dmand AI also links Dennis Jack to 3 hospitals, 2 medical groups and 1 dialysis center.
What is Dennis Michael Jack's office phone number?
The practice phone on file for Dennis Jack is (716) 898-3936.
What is Dennis Michael Jack's medical license number?
Dennis Jack holds New York license 343352.
Which hospitals is Dennis Michael Jack affiliated with?
Dennis Jack practices at Erie County Medical Center in Buffalo, New York. Dennis Jack is also affiliated with Buffalo General Medical Center/Gates Vascular Institute. Dmand AI links Dennis Jack to 3 more hospitals.
What medical group is Dennis Michael Jack part of?
Dennis Jack is linked to Erie County Medical Center (ECMC). Dmand AI links Dennis Jack to 2 more medical groups.
Does Dennis Michael Jack accept Medicare?
Yes. CMS lists Dennis Jack as accepting Medicare assignment.
Does Dennis Michael Jack offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dennis Jack as offering telehealth services.
What is Dennis Michael Jack's MIPS score?
Dennis Jack's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
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How many Medicare patients does Dennis Michael Jack see?
CMS counts 125 Medicare patients who saw Dennis Jack in 2024, with an average age of 58.
Has Dennis Michael Jack received payments from drug or device companies?
CMS Open Payments shows $273 in general payments to Dennis Jack from 2 companies from 2025 to 2025. The largest total came from Travere Therapeutics, Inc.
How long has Dennis Michael Jack been practicing?
Dennis Jack graduated from medical school in 2018, 8 years ago.
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