Brenna Nicole Zack, ACNP
- Medicare patients, 2024
- 120
- Part D claims, 2024
- 206
- MIPS score, 2024
- 84
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Brenna Zack's professional email, personal email and mobile number
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Brenna Nicole Zack is a nurse practitioner in Saint Louis, Missouri
Brenna Zack practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Brenna Zack's NPI, 1699307231, was assigned on February 11, 2020. Brenna Zack holds Missouri license 2020005013.
- NPI
- 1699307231NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537598123
- NPI enumeration date
- February 11, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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)
Brenna Nicole Zack practices at 2 locations in Saint Louis, Missouri
Brenna Zack's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Brenna Zack also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Brenna Nicole Zack is affiliated with 1 site of care and 1 medical group
Brenna Zack's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Brenna Nicole Zack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Brenna Zack practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Brenna Nicole Zack is one of 1,347 nurse practitioners in Missouri
Nurse practitioner is Brenna Zack's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Brenna Zack is licensed in Missouri.
Specialties and state licenses
- Nurse practitioner, MissouriPrimary
Nurse practitioners near Brenna Zack
Counts of 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
Brenna Nicole Zack treated 120 Medicare patients in 2024, average age 69
CMS counts 120 Medicare patients who saw Brenna Zack in 2024. The largest group is 75 to 84, with 42 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 26% are also on Medicaid. Their average risk score is 2.99, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Brenna Zack's median patient age at 70, with 61% women.
Brenna Zack's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Brenna Zack's Medicare patients by sex, 2024
- Women5445%
- Men6655%
Chronic conditions among Brenna Zack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis54%
- Chronic kidney disease43%
- Diabetes43%
- Ischemic heart disease40%
- Atrial fibrillation38%
- Depression38%
Share of Medicare patients with each condition. A patient can have several.
Brenna Zack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Brenna Nicole Zack wrote 206 Medicare Part D claims in 2024
In 2024, Brenna Zack wrote 206 Medicare Part D claims for 110 patients. 87% of them were for generic drugs.
Brenna Zack's Part D claims by kind of drug, 2024
- Generic179 claims87%
- Brand-name and other27 claims13%
Drug classes CMS tracks in Brenna Zack's Part D claims, 2024
- Antibiotics21%43 of 206 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
Brenna Nicole Zack scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Brenna Zack for performance year 2024, reported as part of a group. Brenna Zack accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Brenna Zack's MIPS scores, performance year 2024
- 84of 100Final score
- 71.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 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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Sources for Brenna Nicole Zack'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 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) |
| 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 Brenna Nicole Zack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Brenna Nicole Zack's NPI number?
Brenna Nicole Zack's NPI number is 1699307231. It was assigned on February 11, 2020, and it is active in the NPI Registry.
What does Brenna Nicole Zack specialize in?
Brenna Nicole Zack is a nurse practitioner in Saint Louis, Missouri. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Brenna Nicole Zack practice?
Brenna Zack practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Brenna Zack also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Brenna Zack's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
What is Brenna Nicole Zack's office phone number?
The practice phone on file for Brenna Zack is (314) 747-3000.
What is Brenna Nicole Zack's medical license number?
Brenna Zack holds Missouri license 2020005013.
Which hospitals is Brenna Nicole Zack affiliated with?
Brenna Zack practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Brenna Nicole Zack part of?
Brenna Zack is linked to WashU Medicine Psychiatry.
Does Brenna Nicole Zack accept Medicare?
Yes. CMS lists Brenna Zack as accepting Medicare assignment.
What is Brenna Nicole Zack's MIPS score?
Brenna Zack's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Brenna Nicole Zack see?
CMS counts 120 Medicare patients who saw Brenna Zack in 2024, with an average age of 69.
How long has Brenna Nicole Zack been practicing?
Brenna Zack graduated from medical school in 2019, 7 years ago.
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