David C. Brosnan, OD
- Part D claims, 2024
- 17
- Industry payments
- $18
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 2171 Junipero Serra Blvd, Daly City, CA 94014
- Practice phone
- Call (650) 758-2171
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Paul R Holland MD Inc
Daly City, California
Find David Brosnan'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.
David C. Brosnan is an optometrist in Daly City, California
David Brosnan practices at Paul R Holland MD Inc in Daly City, California.
David Brosnan's NPI, 1437104502, was assigned on May 24, 2006. David Brosnan holds California license 11410T.
- NPI
- 1437104502NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406077346
- NPI enumeration date
- May 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 758-2171
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
David C. Brosnan practices at Paul R Holland MD Inc in Daly City, California
David Brosnan's primary practice is Paul R Holland MD Inc, at 2171 Junipero Serra Blvd, Daly City, CA 94014 in San Mateo County. The practice phone is (650) 758-2171.
- Paul R Holland MD Inc2171 Junipero Serra Blvd, Daly City, CA 94014 · San Mateo CountyPhone(650) 758-2171
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
David C. Brosnan is affiliated with 2 sites of care and 1 medical group
David Brosnan's primary practice is Paul R Holland MD Inc in Daly City, California. The medical group on file is SoHum Health - Jerold Phelps Community Hospital. Dmand AI also links David Brosnan to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at David C. Brosnan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where David Brosnan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Paul R Holland MD Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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David C. Brosnan is one of 7,206 optometrists in California
Optometrist is David Brosnan's primary specialty in the NPI Registry, under taxonomy code 152W00000X. David Brosnan is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near David Brosnan
Counts of optometrists 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
David C. Brosnan's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts David Brosnan's median patient age at 71, with 67% women.
David Brosnan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women67%
- Men22%
Source: Dmand AI Patient Panel Data
David C. Brosnan wrote 17 Medicare Part D claims in 2024
In 2024, David Brosnan wrote 17 Medicare Part D claims. 76% of them were for generic drugs.
David Brosnan's Part D claims by kind of drug, 2024
- Generic13 claims76%
- Brand-name and other4 claims24%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How David C. Brosnan takes part in Medicare
David Brosnan 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)
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.
David C. Brosnan received $18 in industry payments in 2025
CMS Open Payments shows 1 general payment to David Brosnan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Harrow Eye, LLC paid the most, $18.
Companies that paid David Brosnan 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 David C. Brosnan'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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 David C. Brosnan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is David C. Brosnan's NPI number?
David C. Brosnan's NPI number is 1437104502. It was assigned on May 24, 2006, and it is active in the NPI Registry.
What does David C. Brosnan specialize in?
David C. Brosnan is an optometrist in Daly City, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does David C. Brosnan practice?
David Brosnan practices at 2171 Junipero Serra Blvd, Daly City, CA 94014. David Brosnan's primary practice is Paul R Holland MD Inc in Daly City, California. Dmand AI also links David Brosnan to 1 group practice or clinic.
What is David C. Brosnan's office phone number?
The practice phone on file for David Brosnan is (650) 758-2171.
What is David C. Brosnan's medical license number?
David Brosnan holds California license 11410T.
What medical group is David C. Brosnan part of?
David Brosnan is linked to SoHum Health - Jerold Phelps Community Hospital.
Does David C. Brosnan accept Medicare?
Yes. CMS lists David Brosnan as accepting Medicare assignment.
Has David C. Brosnan received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to David Brosnan from 1 company from 2025 to 2025. The largest total came from Harrow Eye, LLC.
How long has David C. Brosnan been practicing?
David Brosnan graduated from medical school in 1999, 27 years ago.
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