Brennen E. Barnett, PA-C
- Medicare patients, 2024
- 184
- Part D claims, 2024
- 294
- MIPS score, 2024
- 100
- Industry payments
- $732
- Affiliated sites
- 1
- Practice address
- 111 New Hampshire Ave, Portsmouth, NH 03801
- Practice phone
- Call (330) 965-8760
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Optima Dermatology
Portsmouth, New Hampshire
Find Brennen Barnett'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.
Brennen E. Barnett is a physician assistant in Portsmouth, New Hampshire
Brennen Barnett practices at Optima Dermatology in Portsmouth, New Hampshire.
Brennen Barnett's NPI, 1679031041, was assigned on March 5, 2019. Brennen Barnett holds Ohio license 50.005735RX.
- NPI
- 1679031041NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214278472
- NPI enumeration date
- March 5, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (330) 965-8760
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Brennen E. Barnett practices at Optima Dermatology in Portsmouth, New Hampshire
Brennen Barnett's primary practice is Optima Dermatology, at 111 New Hampshire Ave, Portsmouth, NH 03801 in Rockingham County. The practice phone is (330) 965-8760.
- Optima Dermatology111 New Hampshire Ave, Portsmouth, NH 03801 · Rockingham CountyPhone(330) 965-8760
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Brennen E. Barnett is affiliated with 2 sites of care and 1 medical group
Brennen Barnett's primary practice is Optima Dermatology in Portsmouth, New Hampshire. The medical group on file is Optima Dermatology. Dmand AI also links Brennen Barnett to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Brennen E. Barnett's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Brennen Barnett practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Optima Dermatology | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Brennen E. Barnett is one of 796 physician assistants in New Hampshire
Physician assistant is Brennen Barnett's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Brennen Barnett is licensed in Ohio.
Specialties and state licenses
- Physician assistant, OhioPrimary
Physician assistants near Brennen Barnett
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
Brennen E. Barnett treated 184 Medicare patients in 2024, average age 74
CMS counts 184 Medicare patients who saw Brennen Barnett in 2024. The largest group is 65 to 74, with 110 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Brennen Barnett's median patient age at 56, with 62% women.
Brennen Barnett's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Brennen Barnett's Medicare patients by sex, 2024
- Women11663%
- Men6837%
Chronic conditions among Brennen Barnett's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis46%
- Mood disorders25%
- Anxiety24%
- Depression23%
- Ischemic heart disease22%
- Chronic kidney disease20%
Share of Medicare patients with each condition. A patient can have several.
Brennen Barnett's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women62%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Brennen E. Barnett wrote 294 Medicare Part D claims in 2024
In 2024, Brennen Barnett wrote 294 Medicare Part D claims for 146 patients. 96% of them were for generic drugs.
Brennen Barnett's Part D claims by kind of drug, 2024
- Generic283 claims96%
- Brand-name11 claims4%
Drug classes CMS tracks in Brennen Barnett's Part D claims, 2024
- Antibiotics6%19 of 294 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
Brennen E. Barnett scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Brennen Barnett for performance year 2024, reported individually. Brennen Barnett accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Brennen Barnett's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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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Brennen E. Barnett received $732 in industry payments in 2025
CMS Open Payments shows 60 general payments to Brennen Barnett from 12 drug and device companies in 2025. Food and beverage make up the largest share, 88% of the total. Regeneron Pharmaceuticals, Inc. paid the most, $201.
General payments to Brennen Barnett by kind, 2025 to 2025
- Food and beverage$64688%
- Education$8512%
Companies that paid Brennen Barnett 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 Brennen E. Barnett'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Brennen E. Barnett
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Brennen E. Barnett's NPI number?
Brennen E. Barnett's NPI number is 1679031041. It was assigned on March 5, 2019, and it is active in the NPI Registry.
What does Brennen E. Barnett specialize in?
Brennen E. Barnett is a physician assistant in Portsmouth, New Hampshire. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Brennen E. Barnett practice?
Brennen Barnett practices at 111 New Hampshire Ave, Portsmouth, NH 03801. Brennen Barnett's primary practice is Optima Dermatology in Portsmouth, New Hampshire. Dmand AI also links Brennen Barnett to 1 group practice or clinic.
What is Brennen E. Barnett's office phone number?
The practice phone on file for Brennen Barnett is (330) 965-8760.
What is Brennen E. Barnett's medical license number?
Brennen Barnett holds Ohio license 50.005735RX.
What medical group is Brennen E. Barnett part of?
Brennen Barnett is linked to Optima Dermatology.
Does Brennen E. Barnett accept Medicare?
Yes. CMS lists Brennen Barnett as accepting Medicare assignment.
What is Brennen E. Barnett's MIPS score?
Brennen Barnett's MIPS final score for performance year 2024 is 100 out of 100, reported individually.
How many Medicare patients does Brennen E. Barnett see?
CMS counts 184 Medicare patients who saw Brennen Barnett in 2024, with an average age of 74.
Has Brennen E. Barnett received payments from drug or device companies?
CMS Open Payments shows $732 in general payments to Brennen Barnett from 12 companies from 2025 to 2025. The largest total came from Regeneron Pharmaceuticals, Inc.
How long has Brennen E. Barnett been practicing?
Brennen Barnett graduated from medical school in 2018, 8 years ago.
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