Darren Farnesi, M.D.
NPI 1811906175 · Family Medicine Physician · Spring Valley, CA
Darren Farnesi, M.D. is a Family Medicine Physician provider in Spring Valley, CA (NPI 1811906175).
Provider details
- NPI number
- 1811906175
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A 72585 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Testosterone Cypionate | 48 | 11 |
| Progesterone, Micronizedbrand: Progesterone | 32 | — |
| Estradiol | 25 | — |
| Liothyronine Sodium | 25 | — |
| Rosuvastatin Calcium | 23 | — |
| Levothyroxine Sodium | 22 | — |
| Acyclovir | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$247 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Darren Farnesi's NPI number?
- Darren Farnesi's National Provider Identifier (NPI) is 1811906175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Farnesi's specialty?
- Darren Farnesi is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Darren Farnesi located?
- Darren Farnesi's practice location on file with NPPES is 10225 Austin Dr, Spring Valley, CA 91978-1522.
- What is Darren Farnesi's phone number?
- The practice phone number listed in the NPPES registry for Darren Farnesi is (619) 660-9068.
- Is Darren Farnesi's NPI active?
- Yes — Darren Farnesi's NPI (1811906175) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.