Brenda Ester Siman, PA
- Part D claims, 2024
- 179
- Industry payments
- $751
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Practice address
- 326 W 23rd Street, Los Angeles, CA 90007
- Practice phone
- Call (323) 541-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Warner Traynham Clinic
FQHC - Main Site · Los Angeles, California
Find Brenda Siman'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.
Brenda Ester Siman is a physician assistant in Los Angeles, California
Brenda Siman practices at Warner Traynham Clinic in Los Angeles, California.
Brenda Siman's NPI, 1598474686, was assigned on November 17, 2022.
- NPI
- 1598474686NPI Registry (opens in a new tab)
- NPI enumeration date
- November 17, 2022
- NPI status
- Active
- Practice phone
- (323) 541-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Brenda Ester Siman practices at Warner Traynham Clinic in Los Angeles, California
Brenda Siman's primary practice is Warner Traynham Clinic, at 326 W 23rd Street, Los Angeles, CA 90007 in Los Angeles County. The practice phone is (323) 541-1600.
- Warner Traynham Clinic326 W 23rd Street, Los Angeles, CA 90007 · Los Angeles CountyPhone(323) 541-1600
Source: Dmand AI Affiliation Data
Brenda Ester Siman is affiliated with 2 sites of care and 1 medical group
Brenda Siman's primary practice is Warner Traynham Clinic in Los Angeles, California. The medical group on file is St. John's Community Health. Dmand AI also links Brenda Siman to 1 more community health center, named with a free account. Brenda Siman's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Brenda Ester Siman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Brenda Siman practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Warner Traynham Clinic | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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.
Brenda Ester Siman is one of 11,482 physician assistants in California
Physician assistant is Brenda Siman's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Brenda Siman
Counts of 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
Brenda Ester Siman's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Brenda Siman's median patient age at 59, with 71% women.
Brenda Siman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women71%
- Men29%
Source: Dmand AI Patient Panel Data
Brenda Ester Siman wrote 179 Medicare Part D claims in 2024
In 2024, Brenda Siman wrote 179 Medicare Part D claims for 59 patients. 86% of them were for generic drugs.
Brenda Siman's Part D claims by kind of drug, 2024
- Generic154 claims86%
- Brand-name and other25 claims14%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Brenda Ester Siman received $751 in industry payments in 2025
CMS Open Payments shows 33 general payments to Brenda Siman from 16 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $86.
Companies that paid Brenda Siman the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Brenda Ester Siman'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Brenda Ester Siman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Brenda Ester Siman's NPI number?
Brenda Ester Siman's NPI number is 1598474686. It was assigned on November 17, 2022, and it is active in the NPI Registry.
What does Brenda Ester Siman specialize in?
Brenda Ester Siman is a physician assistant in Los Angeles, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Brenda Ester Siman practice?
Brenda Siman practices at 326 W 23rd Street, Los Angeles, CA 90007. Brenda Siman's primary practice is Warner Traynham Clinic in Los Angeles, California. Dmand AI also links Brenda Siman to 1 community health center.
What is Brenda Ester Siman's office phone number?
The practice phone on file for Brenda Siman is (323) 541-1600.
What medical group is Brenda Ester Siman part of?
Brenda Siman is linked to St. John's Community Health.
Has Brenda Ester Siman received payments from drug or device companies?
CMS Open Payments shows $751 in general payments to Brenda Siman from 16 companies from 2025 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Brenda Ester Siman been practicing?
Brenda Siman graduated from medical school in 2022, 4 years ago.
Selling to physician assistant practices?
See physician assistants 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