Dr. David L. Brennick, MD
- Medicare services, 2024
- 300
- Medicare patients, 2024
- 296
- Part D claims, 2024
- 325
- Hospital affiliations
- 2
- Industry payments
- $21
- Practice address
- 330 S Stillaguamish Ave, Arlington, WA 98223
- Practice phone
- Call (360) 435-2133
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Brennick's professional email, personal email and mobile number
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Dr. David L. Brennick is an emergency medicine physician in Arlington, Washington
Dr. Brennick practices at Cascade Valley Hospital in Arlington, Washington, part of Skagit Regional Health.
Dr. Brennick's NPI, 1447379185, was assigned on March 27, 2007. Dr. Brennick holds Kentucky license 40949.
- NPI
- 1447379185NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729176748
- NPI enumeration date
- March 27, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (360) 435-2133
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David L. Brennick practices at Cascade Valley Hospital in Arlington, Washington
Dr. Brennick's primary practice is Cascade Valley Hospital, at 330 S Stillaguamish Ave, Arlington, WA 98223 in Snohomish County. The practice phone is (360) 435-2133.
- Cascade Valley Hospital330 S Stillaguamish Ave, Arlington, WA 98223 · Snohomish CountyPhone(360) 435-2133
Source: Dmand AI Affiliation Data
Dr. David L. Brennick is affiliated with 4 sites of care and 2 medical groups
Dr. Brennick's primary practice is Cascade Valley Hospital in Arlington, Washington, part of Skagit Regional Health. Dr. Brennick is also affiliated with Island Health. The medical group on file is Southeastern Emergency Physicians. Dmand AI also links Dr. Brennick to 1 more clinical lab, 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 Dr. David L. Brennick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brennick practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cascade Valley Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Skagit Regional Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David L. Brennick is one of 1,408 emergency medicine physicians in Washington
Emergency medicine is Dr. Brennick's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Brennick is licensed in Kentucky.
Specialties and state licenses
- Emergency medicine, KentuckyPrimary
Emergency medicine physicians near Dr. Brennick
Counts of emergency medicine physicians 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
Dr. David L. Brennick billed Medicare for 300 services in 2024
CMS data shows 300 Medicare services from Dr. Brennick across 3 procedure codes in 2024, for 296 Medicare patients. Medicare paid $36,139 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Brennick's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4372024: 30031%
Dr. Brennick compared with the Washington median for emergency medicine physicians, 2024
- Dr. Brennick
- Washington median
- Medicare services
- 300vs 26812% above
- Medicare patients
- 296vs 22333% above
- Part D claims
- 195vs 613.2 times
Medians across 1,440 emergency medicine physicians in Washington with Dmand AI profiles that report each measure.
Dr. Brennick'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brennick and other emergency medicine physicians in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David L. Brennick treated 296 Medicare patients in 2024, average age 74
CMS counts 296 Medicare patients who saw Dr. Brennick in 2024. The largest group is 75 to 84, with 104 patients. 73% of them have high blood pressure, and 70% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Brennick's median patient age at 49, with 54% women.
Dr. Brennick's Medicare patients by age, 2024
Dr. Brennick's Medicare patients by sex, 2024
- Women15552%
- Men14148%
Chronic conditions among Dr. Brennick's Medicare patients, 2024
- High blood pressure73%
- High cholesterol70%
- Arthritis40%
- Mood disorders31%
- Ischemic heart disease30%
- Anxiety29%
- Depression29%
- Diabetes29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brennick's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David L. Brennick wrote 325 Medicare Part D claims in 2024
In 2024, Dr. Brennick wrote 325 Medicare Part D claims for 197 patients. 95% of them were for generic drugs. CMS names the drug for 195 of them, across 8 drugs with 11 or more claims each, at $1,438 in total drug cost. In 2023, CMS named 140 claims across 7 drugs.
Dr. Brennick's Part D claims by kind of drug, 2024
- Generic310 claims95%
- Brand-name15 claims5%
Dr. Brennick'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 Dr. Brennick's Part D claims, 2024
- Opioids17%56 of 325 claims
- Antibiotics25%81 of 325 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1402024: 19539%
Drugs named by CMS: 8 in 2024, 7 in 2023.
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
How Dr. David L. Brennick takes part in Medicare
Dr. Brennick 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)
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Dr. David L. Brennick received $21 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Brennick from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $21.
Companies that paid Dr. Brennick the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David L. Brennick'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) |
| 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 Dr. David L. Brennick
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. David L. Brennick's NPI number?
Dr. David L. Brennick's NPI number is 1447379185. It was assigned on March 27, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David L. Brennick?
Dr. David L. Brennick is an emergency medicine physician in Arlington, Washington. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. David L. Brennick practice?
Dr. Brennick practices at 330 S Stillaguamish Ave, Arlington, WA 98223. Dr. Brennick's primary practice is Cascade Valley Hospital in Arlington, Washington, part of Skagit Regional Health. Dmand AI also links Dr. Brennick to 1 clinical lab, 1 group practice or clinic and 1 medical group.
What is Dr. David L. Brennick's office phone number?
The practice phone on file for Dr. Brennick is (360) 435-2133.
What is Dr. David L. Brennick's medical license number?
Dr. Brennick holds Kentucky license 40949.
Which hospitals is Dr. David L. Brennick affiliated with?
Dr. Brennick practices at Cascade Valley Hospital in Arlington, Washington. Dr. Brennick is also affiliated with Island Health.
What medical group is Dr. David L. Brennick part of?
Dr. Brennick is linked to Southeastern Emergency Physicians. Dmand AI links Dr. Brennick to 1 more medical group.
Does Dr. David L. Brennick accept Medicare?
Yes. CMS data shows Dr. Brennick billed Medicare for 300 services in 2024, and Dr. Brennick accepts Medicare assignment.
How many Medicare patients does Dr. David L. Brennick see?
CMS counts 296 Medicare patients who saw Dr. Brennick in 2024, with an average age of 74.
What services does Dr. David L. Brennick bill to Medicare?
In 2024, Dr. Brennick's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
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What drugs does Dr. David L. Brennick prescribe most?
In 2024 Medicare Part D data, Dr. Brennick's most prescribed drugs by claims were Ondansetron ODT, Hydrocodone-Acetaminophen and Methylprednisolone.
Has Dr. David L. Brennick received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Dr. Brennick from 1 company from 2024 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. David L. Brennick been practicing?
Dr. Brennick graduated from medical school in 2003, 23 years ago.
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