Brittni H. Mack, PA-C
- Medicare services, 2024
- 73
- Medicare patients, 2024
- 80
- Part D claims, 2024
- 159
- MIPS score, 2024
- 100
- Hospital affiliations
- 4
- Practice address
- 1600 N Rose Ave, Oxnard, CA 93030
- Practice phone
- Call (805) 988-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Brittni Mack'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.
Brittni H. Mack is a surgical physician assistant in Oxnard, California
Brittni Mack practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health.
Brittni Mack's NPI, 1063975753, was assigned on April 9, 2019. Brittni Mack holds California license 56843.
- NPI
- 1063975753NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931532835
- NPI enumeration date
- April 9, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 988-2500
- 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)
Brittni H. Mack practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California
Brittni Mack's primary practice is Dignity Health - St. John's Regional Medical Center, at 1600 N Rose Ave, Oxnard, CA 93030 in Ventura County. The practice phone is (805) 988-2500.
- Dignity Health - St. John's Regional Medical Center1600 N Rose Ave, Oxnard, CA 93030 · Ventura CountyPhone(805) 988-2500
Source: Dmand AI Affiliation Data
Brittni H. Mack is affiliated with 5 sites of care and 2 medical groups
Brittni Mack's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. Brittni Mack is also affiliated with Santa Barbara Cottage Hospital. The medical group on file is Link Integrated Healthcare. Dmand AI also links Brittni Mack to 2 more hospitals, 1 group practice or clinic 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 Brittni H. Mack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Brittni Mack practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - St. John's Regional Medical Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Brittni H. Mack is one of 883 surgical physician assistants in California
Surgical is Brittni Mack's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Brittni Mack is licensed in California.
Specialties and state licenses
- Surgical physician assistant, CaliforniaPrimary
Clinical focus
Dmand AI lists muscle pain, fibromyalgia, and limb pain and neck pain and spine problems among the conditions Brittni Mack treats.
Surgical physician assistants near Brittni Mack
Counts of surgical 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
Brittni H. Mack billed Medicare for 73 services in 2024
CMS data shows 73 Medicare services from Brittni Mack across 3 procedure codes in 2024, all of them office visits, for 80 Medicare patients. Medicare paid $6,706 for them. Every service was in an office.
Brittni Mack compared with the California median for surgical physician assistants, 2024
- Brittni Mack
- California median
- Medicare services
- 73vs 22067% below
- Medicare patients
- 80vs 9011% below
- Part D claims
- 105vs 15532% below
Medians across 656 surgical physician assistants in California with Dmand AI profiles that report each measure.
Brittni Mack'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.
Need commercial claims for Brittni Mack?
Medicare shows one payer. Book a meeting to get commercial claims data for Brittni Mack and other surgical physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Brittni H. Mack treated 80 Medicare patients in 2024, average age 77
CMS counts 80 Medicare patients who saw Brittni Mack in 2024. The largest group is 75 to 84, with 34 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.65, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Brittni Mack's median patient age at 69, with 56% women.
Brittni Mack's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Brittni Mack's Medicare patients by sex, 2024
- Women4151%
- Men3949%
Chronic conditions among Brittni Mack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Stroke or TIA58%
- Depression41%
- Mood disorders41%
- Anxiety40%
- Atrial fibrillation33%
Share of Medicare patients with each condition. A patient can have several.
Brittni Mack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women56%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Brittni H. Mack wrote 159 Medicare Part D claims in 2024
In 2024, Brittni Mack wrote 159 Medicare Part D claims for 77 patients. 100% of them were for generic drugs. CMS names the drug for 105 of them, across 5 drugs with 11 or more claims each, at $846 in total drug cost.
Brittni Mack's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Brittni Mack's Part D claims, 2024
- Opioids34%54 of 159 claims
- Antibiotics9%14 of 159 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Brittni H. Mack 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 Brittni Mack for performance year 2024, reported through an alternative payment model (APM). Brittni Mack accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Brittni Mack's MIPS scores, performance year 2024
- 100of 100Final score
- 86.3of 100Quality
- 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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Brittni H. Mack received $1,861 in industry payments from 2024 to 2025
CMS Open Payments shows 39 general payments to Brittni Mack from 11 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 56% of the total. Abbott Laboratories paid the most, $1,028.
General payments to Brittni Mack by program year, 2024 to 2025
General payments to Brittni Mack by kind, 2024 to 2025
- Food and beverage$1,04056%
- Travel and lodging$82144%
Companies that paid Brittni Mack the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Brittni H. Mack'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)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 Brittni H. Mack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Brittni H. Mack's NPI number?
Brittni H. Mack's NPI number is 1063975753. It was assigned on April 9, 2019, and it is active in the NPI Registry.
What does Brittni H. Mack specialize in?
Brittni H. Mack is a surgical physician assistant in Oxnard, California. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Brittni H. Mack practice?
Brittni Mack practices at 1600 N Rose Ave, Oxnard, CA 93030. Brittni Mack's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. Dmand AI also links Brittni Mack to 2 hospitals, 1 group practice or clinic and 1 medical group.
What is Brittni H. Mack's office phone number?
The practice phone on file for Brittni Mack is (805) 988-2500.
What is Brittni H. Mack's medical license number?
Brittni Mack holds California license 56843.
Which hospitals is Brittni H. Mack affiliated with?
Brittni Mack practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California. Brittni Mack is also affiliated with Santa Barbara Cottage Hospital. Dmand AI links Brittni Mack to 2 more hospitals.
What medical group is Brittni H. Mack part of?
Brittni Mack is linked to Link Integrated Healthcare. Dmand AI links Brittni Mack to 1 more medical group.
Does Brittni H. Mack accept Medicare?
Yes. CMS data shows Brittni Mack billed Medicare for 73 services in 2024, and Brittni Mack accepts Medicare assignment.
What is Brittni H. Mack's MIPS score?
Brittni Mack's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Brittni H. Mack see?
CMS counts 80 Medicare patients who saw Brittni Mack in 2024, with an average age of 77.
Show 4 more questionsShow fewer questions
What services does Brittni H. Mack bill to Medicare?
In 2024, Brittni Mack's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99203) and office visit, new patient (99204).
What drugs does Brittni H. Mack prescribe most?
In 2024 Medicare Part D data, Brittni Mack's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Gabapentin and Cyclobenzaprine HCl.
Has Brittni H. Mack received payments from drug or device companies?
CMS Open Payments shows $1,861 in general payments to Brittni Mack from 11 companies from 2024 to 2025. The largest total came from Abbott Laboratories.
How long has Brittni H. Mack been practicing?
Brittni Mack graduated from medical school in 2019, 7 years ago.
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