Dr. Jenna Joelle Brimmer, MD
- Medicare services, 2024
- 4,672
- Medicare patients, 2024
- 240
- Part D claims, 2024
- 109
- Hospital affiliations
- 4
- Industry payments
- $2,452
- Practice address
- 2070 Clinton Avenue, Alameda, CA 94501
- Practice phone
- Call (510) 522-3700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Jenna Joelle Brimmer is an internist in Alameda, California
Dr. Brimmer practices at Alameda Hospital in Alameda, California, part of Alameda County.
Dr. Brimmer's NPI, 1295703775, was assigned on March 9, 2006. Dr. Brimmer graduated from University of California, Davis School of Medicine in 2001. Dr. Brimmer holds California license A81625.
- NPI
- 1295703775NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466406384
- NPI enumeration date
- March 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 522-3700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jenna Joelle Brimmer practices at Alameda Hospital in Alameda, California
Dr. Brimmer's primary practice is Alameda Hospital, at 2070 Clinton Avenue, Alameda, CA 94501 in Alameda County. The practice phone is (510) 522-3700.
- Alameda Hospital2070 Clinton Avenue, Alameda, CA 94501 · Alameda CountyPhone(510) 522-3700
Source: Dmand AI Affiliation Data
Dr. Jenna Joelle Brimmer is affiliated with 10 sites of care and 1 medical group
Dr. Brimmer's primary practice is Alameda Hospital in Alameda, California, part of Alameda County. Dr. Brimmer is also affiliated with Alta Bates Summit Medical Center | Alta Bates Campus. The medical group on file is Alameda Health System. Dmand AI also links Dr. Brimmer to 2 more hospitals, 5 home health agencies and 1 group practice or clinic, each named with a free account. Dr. Brimmer's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jenna Joelle Brimmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brimmer practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alameda Hospital | Available with a free account |
| +9 more affiliated sites | 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 Alameda County and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jenna Joelle Brimmer is one of 16,751 internists in California
Internal medicine is Dr. Brimmer's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Brimmer is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Brimmer
Counts of internists 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. Jenna Joelle Brimmer billed Medicare for 4,672 services in 2024
CMS data shows 4,672 Medicare services from Dr. Brimmer across 8 procedure codes in 2024, for 240 Medicare patients. Medicare paid $268,600 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Brimmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 3,2882024: 2,52623%
- Office and hospital visits
- 2023: 1,8152024: 1,8341%
- Tests and treatments
- 2023: 1502024: 312108%
Dr. Brimmer compared with the California median for internists, 2024
- Dr. Brimmer
- California median
- Medicare services
- 4,672vs 36112.9 times
- Medicare patients
- 240vs 15159% above
- Part D claims
- 67vs 42184% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Brimmer'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 Dr. Brimmer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brimmer and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jenna Joelle Brimmer treated 240 Medicare patients in 2024, average age 74
CMS counts 240 Medicare patients who saw Dr. Brimmer in 2024. The largest group is 75 to 84, with 87 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 59% are also on Medicaid. Their average risk score is 2.96, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Brimmer's median patient age at 67, with 39% women.
Dr. Brimmer's Medicare patients by age, 2024
Dr. Brimmer's Medicare patients by sex, 2024
- Women12150%
- Men11950%
Chronic conditions among Dr. Brimmer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Diabetes48%
- Chronic kidney disease42%
- Mood disorders35%
- Heart failure33%
- Ischemic heart disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brimmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women39%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jenna Joelle Brimmer wrote 109 Medicare Part D claims in 2024
In 2024, Dr. Brimmer wrote 109 Medicare Part D claims for 57 patients. 95% of them were for generic drugs. CMS names the drug for 67 of them, across 3 drugs with 11 or more claims each, at $413 in total drug cost. In 2023, CMS named 88 claims across 4 drugs.
Dr. Brimmer's Part D claims by kind of drug, 2024
- Generic104 claims95%
- Brand-name and other5 claims5%
Dr. Brimmer'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. Brimmer's Part D claims, 2024
- Antibiotics90%98 of 109 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: 882024: 6724%
Drugs named by CMS: 3 in 2024, 4 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
Dr. Jenna Joelle Brimmer ranks in the 99th percentile for removal of tissue in Medicare
Dr. Brimmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 944 procedures of removal of tissue by Dr. Brimmer, more than 99% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Brimmer ranks in Medicare procedure volume
- Removal of tissue
- 99th percentile944 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jenna Joelle Brimmer received $2,452 in industry payments from 2016 to 2025
CMS Open Payments shows 114 general payments to Dr. Brimmer from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 80% of the total. Smith & Nephew, Inc. paid the most, $793.
General payments to Dr. Brimmer by program year, 2016 to 2025
General payments to Dr. Brimmer by kind, 2016 to 2025
- Food and beverage$1,95280%
- Consulting fees$50020%
Companies that paid Dr. Brimmer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jenna Joelle Brimmer graduated from University of California, Davis School of Medicine
Dr. Brimmer graduated from University of California, Davis School of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jenna Joelle Brimmer'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Jenna Joelle Brimmer
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. Jenna Joelle Brimmer's NPI number?
Dr. Jenna Joelle Brimmer's NPI number is 1295703775. It was assigned on March 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jenna Joelle Brimmer?
Dr. Jenna Joelle Brimmer is an internist in Alameda, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jenna Joelle Brimmer practice?
Dr. Brimmer practices at 2070 Clinton Avenue, Alameda, CA 94501. Dr. Brimmer's primary practice is Alameda Hospital in Alameda, California, part of Alameda County. Dmand AI also links Dr. Brimmer to 2 hospitals, 5 home health agencies and 1 group practice or clinic.
What is Dr. Jenna Joelle Brimmer's office phone number?
The practice phone on file for Dr. Brimmer is (510) 522-3700.
What is Dr. Jenna Joelle Brimmer's medical license number?
Dr. Brimmer holds California license A81625.
Which hospitals is Dr. Jenna Joelle Brimmer affiliated with?
Dr. Brimmer practices at Alameda Hospital in Alameda, California. Dr. Brimmer is also affiliated with Alta Bates Summit Medical Center | Alta Bates Campus. Dmand AI links Dr. Brimmer to 2 more hospitals.
What medical group is Dr. Jenna Joelle Brimmer part of?
Dr. Brimmer is linked to Alameda Health System.
Does Dr. Jenna Joelle Brimmer accept Medicare?
Yes. CMS data shows Dr. Brimmer billed Medicare for 4,672 services in 2024, and Dr. Brimmer accepts Medicare assignment.
How many Medicare patients does Dr. Jenna Joelle Brimmer see?
CMS counts 240 Medicare patients who saw Dr. Brimmer in 2024, with an average age of 74.
What services does Dr. Jenna Joelle Brimmer bill to Medicare?
In 2024, Dr. Brimmer's most billed Medicare services were office visit, established patient (99214), surgery: skin and soft tissue (11042) and surgery: skin and soft tissue (11045).
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Where did Dr. Jenna Joelle Brimmer go to medical school?
Dr. Brimmer graduated from University of California, Davis School of Medicine in 2001.
What drugs does Dr. Jenna Joelle Brimmer prescribe most?
In 2024 Medicare Part D data, Dr. Brimmer's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Sulfamethoxazole-Trimethoprim and Levofloxacin.
Has Dr. Jenna Joelle Brimmer received payments from drug or device companies?
CMS Open Payments shows $2,452 in general payments to Dr. Brimmer from 12 companies from 2016 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Dr. Jenna Joelle Brimmer been practicing?
Dr. Brimmer graduated from medical school in 2001, 25 years ago.
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