Dr. Brent Jacob Geffen, MD

  • Simi Valley, CA
  • Otolaryngologist
NPI1528562527PAC ID1759714736
Medicare services, 2024
1,656
Medicare patients, 2024
721
Part D claims, 2024
583
Publications
1
MIPS score, 2024
90
Practice address
2876 Sycamore Dr, Simi Valley, CA 93065
Practice phone
Call (805) 527-7320
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

West Coast Ear Nose and Throat

Simi Valley, California

See all 7 affiliations

Find Dr. Geffen'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.

View contacts for free

Dr. Brent Jacob Geffen is an otolaryngologist in Simi Valley, California

Dr. Geffen practices at West Coast Ear Nose and Throat in Simi Valley, California.

Dr. Geffen's NPI, 1528562527, was assigned on March 22, 2018. Dr. Geffen graduated from Wake Forest School of Medicine in 2018. Dr. Geffen holds California license 185833.

NPI and contact details
Medicare PAC ID
1759714736
NPI enumeration date
March 22, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(805) 527-7320
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
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)

Dr. Brent Jacob Geffen practices at West Coast Ear Nose and Throat in Simi Valley, California

Dr. Geffen's primary practice is West Coast Ear Nose and Throat, at 2876 Sycamore Dr, Simi Valley, CA 93065 in Ventura County. The practice phone is (805) 527-7320.

  • West Coast Ear Nose and Throat
    2876 Sycamore Dr, Simi Valley, CA 93065 · Ventura CountyPhone(805) 527-7320

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Brent Jacob Geffen is affiliated with 5 sites of care and 2 medical groups

Dr. Geffen's primary practice is West Coast Ear Nose and Throat in Simi Valley, California. Dr. Geffen is also affiliated with Los Robles Regional Medical Center. The medical group on file is BASS Medical Group. Dmand AI also links Dr. Geffen to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Geffen

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Brent Jacob Geffen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Geffen practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
West Coast Ear Nose and ThroatAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Geffen practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Brent Jacob Geffen is one of 1,107 otolaryngologists in California

Otolaryngology is Dr. Geffen's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dmand AI has Dr. Geffen's licenses on file in 2 states: California and Utah.

Specialties and state licenses

  • Otolaryngology, CaliforniaPrimaryLicense 185833 · 2023 to 2027 · taxonomy 207Y00000X
  • Utah licenseLicense 11393298-1205 · 2019 to 2024

Clinical focus

Dmand AI lists chronic nasal allergies, ear eustachian tube disorders, ear infection, hearing loss and impairment, larynx and vocal cord disease, swimmer's ear, tinnitus and vertigo among the conditions Dr. Geffen treats.

Otolaryngologists near Dr. Geffen

Counts of otolaryngologists 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. Brent Jacob Geffen billed Medicare for 1,656 services in 2024

CMS data shows 1,656 Medicare services from Dr. Geffen across 13 procedure codes in 2024, for 721 Medicare patients. Medicare paid $130,530 for them. Every service was in an office.

Medicare services, 20241,656
Medicare patients721
Paid by Medicare$130,530
Procedure codes13

Dr. Geffen's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3672024: 1,072192%
Surgery
2023: 1832024: 480162%
Tests and treatments
2023: 492024: 104112%

Dr. Geffen compared with the California median for otolaryngologists, 2024

  • Dr. Geffen
  • California median
Medicare services
1,656vs 6662.5 times
Medicare patients
721vs 2962.4 times
Part D claims
471vs 1184.0 times

Medians across 1,045 otolaryngologists in California with Dmand AI profiles that report each measure.

Dr. Geffen'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.

See all procedures by Dr. Geffen

Need commercial claims for Dr. Geffen?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Geffen and other otolaryngologists in California.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Brent Jacob Geffen treated 721 Medicare patients in 2024, average age 77

CMS counts 721 Medicare patients who saw Dr. Geffen in 2024. The largest group is 65 to 74, with 296 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Geffen's median patient age at 53, with 53% women.

Medicare patients, 2024721
Average age77
Average risk score1.23
Also on Medicaid12%

Dr. Geffen's Medicare patients by age, 2024

Dr. Geffen's Medicare patients by sex, 2024

  • Women39355%
  • Men32845%

Chronic conditions among Dr. Geffen's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis58%
  4. Ischemic heart disease36%
  5. Diabetes27%
  6. Chronic kidney disease24%
  7. Osteoporosis23%
  8. Anxiety22%

Share of Medicare patients with each condition. A patient can have several.

Dr. Geffen's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women53%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Brent Jacob Geffen wrote 583 Medicare Part D claims in 2024

In 2024, Dr. Geffen wrote 583 Medicare Part D claims for 270 patients. 97% of them were for generic drugs. CMS names the drug for 471 of them, across 15 drugs with 11 or more claims each, at $8,639 in total drug cost. In 2023, CMS named 87 claims across 5 drugs.

Part D claims, 2024583
Drugs named by CMS15
Total drug cost$8,639
Part D patients270

Dr. Geffen's Part D claims by kind of drug, 2024

  • Generic565 claims97%
  • Brand-name18 claims3%

Dr. Geffen'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. Geffen's Part D claims, 2024

  • Opioids4%24 of 583 claims
  • Antibiotics14%81 of 583 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: 872024: 471441%

Drugs named by CMS: 15 in 2024, 5 in 2023.

See all prescribing by Dr. Geffen

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. Brent Jacob Geffen scored 90 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Geffen for performance year 2024, reported as part of a group. Dr. Geffen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Geffen's MIPS scores, performance year 2024

  • 90of 100Final score
  • 80.5of 100Quality
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

Find otolaryngologists like Dr. Geffen by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Brent Jacob Geffen has 1 publication on record

Dmand AI links 1 paper to Dr. Geffen in 2022. Dr. Geffen's most frequent co-authors are Albert H. Park, MD and Dennis S. Poe, MD.

Papers1

Dr. Geffen's most frequent co-authors

Recent publications by Dr. Geffen

See all 1 publications and co-authors

See who Dr. Geffen researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Geffen works with, so you can find a warm path to the right otolaryngologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Brent Jacob Geffen received $3,888 in industry payments from 2022 to 2025

CMS Open Payments shows 52 general payments to Dr. Geffen from 8 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 50% of the total. Inspire Medical Systems, Inc. paid the most, $2,100.

General payments to Dr. Geffen by program year, 2022 to 2025

General payments to Dr. Geffen by kind, 2022 to 2025

$3.9Kin total
  • Food and beverage$1,95750%
  • Travel and lodging$1,93150%

Companies that paid Dr. Geffen the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Geffen

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Brent Jacob Geffen graduated from Wake Forest School of Medicine

Dr. Geffen graduated from Wake Forest School of Medicine in 2018. Dr. Geffen is a member of ACS.

  1. Medical schoolWake Forest School of Medicine

Source: Dmand AI Professional Profile Data

Dr. Brent Jacob Geffen accepts plans from 9 insurance carriers

Dr. Geffen is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +1 more carriersWith a free account

Plan types Dr. Geffen accepts, by number of carriers

  1. Medicare6
  2. PPO5
  3. HMO4
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Brent Jacob Geffen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Brent Jacob Geffen

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. Brent Jacob Geffen's NPI number?

Dr. Brent Jacob Geffen's NPI number is 1528562527. It was assigned on March 22, 2018, and it is active in the NPI Registry.

What kind of doctor is Dr. Brent Jacob Geffen?

Dr. Brent Jacob Geffen is an otolaryngologist in Simi Valley, California. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).

Where does Dr. Brent Jacob Geffen practice?

Dr. Geffen practices at 2876 Sycamore Dr, Simi Valley, CA 93065. Dr. Geffen's primary practice is West Coast Ear Nose and Throat in Simi Valley, California. Dmand AI also links Dr. Geffen to 1 hospital, 2 group practices and clinics and 1 medical group.

What is Dr. Brent Jacob Geffen's office phone number?

The practice phone on file for Dr. Geffen is (805) 527-7320.

What is Dr. Brent Jacob Geffen's medical license number?

Dr. Geffen holds California license 185833, one of the licenses on file in 2 states.

Which states has Dr. Brent Jacob Geffen been licensed in?

Dmand AI has state licenses on file for Dr. Geffen in California (2023 to 2027) and Utah (2019 to 2024).

Which hospitals is Dr. Brent Jacob Geffen affiliated with?

Dr. Geffen is affiliated with Los Robles Regional Medical Center. Dmand AI links Dr. Geffen to 1 more hospital.

What medical group is Dr. Brent Jacob Geffen part of?

Dr. Geffen is linked to BASS Medical Group. Dmand AI links Dr. Geffen to 1 more medical group.

Does Dr. Brent Jacob Geffen accept Medicare?

Yes. CMS data shows Dr. Geffen billed Medicare for 1,656 services in 2024, and Dr. Geffen accepts Medicare assignment.

What is Dr. Brent Jacob Geffen's MIPS score?

Dr. Geffen's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Brent Jacob Geffen see?

CMS counts 721 Medicare patients who saw Dr. Geffen in 2024, with an average age of 77.

What services does Dr. Brent Jacob Geffen bill to Medicare?

In 2024, Dr. Geffen's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: ear (69210).

Where did Dr. Brent Jacob Geffen go to medical school?

Dr. Geffen graduated from Wake Forest School of Medicine in 2018.

What drugs does Dr. Brent Jacob Geffen prescribe most?

In 2024 Medicare Part D data, Dr. Geffen's most prescribed drugs by claims were Famotidine, Fluticasone Propionate and Pantoprazole Sodium.

Has Dr. Brent Jacob Geffen received payments from drug or device companies?

CMS Open Payments shows $3,888 in general payments to Dr. Geffen from 8 companies from 2022 to 2025. The largest total came from Inspire Medical Systems, Inc.

How long has Dr. Brent Jacob Geffen been practicing?

Dr. Geffen graduated from medical school in 2018, 8 years ago.

Does Dr. Brent Jacob Geffen do research?

Dmand AI links 1 publication to Dr. Geffen.

Who does Dr. Brent Jacob Geffen publish with?

Dr. Geffen's most frequent co-authors are Albert H. Park, MD (1 shared paper) and Dennis S. Poe, MD (1 shared paper).

What insurance does Dr. Brent Jacob Geffen accept?

Dr. Geffen is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

Selling to otolaryngology practices?

See otolaryngologists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)