Darren Alan Farnesi, M.D.
Family Medicine Physician · Spring Valley, CA
Darren Alan Farnesi, M.D. is a family medicine physician with a practice address in Spring Valley, California, and NPI 1811906175, issued on Aug 5, 2006. Check the license (California A 72585, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Darren Alan Farnesi
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A 72585 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10225 Austin Dr, Spring Valley, CA 91978
- Phone
- (619) 660-9068
- Enumerated
- Aug 5, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (619) 660-7640
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 10225 Austin Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hanid Audish, DOFamily Medicine Physician1598975690
- Mary Deason, PTPhysical Therapist1336217603
- Robert Lipetz, D.O.Family Medicine Physician1467524785
- Anna Martinez, N.D.Naturopath1750683165
- Julianna Nikolic, B.S., LSNNutritionist1568695120
- Merilee Summerfield, PAFamily Medicine Physician1467531988
Verify Darren Alan Farnesi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A 72585Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
273 Medicare Part D claims for 41 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Testosterone Cypionate48 claims
- Progesterone32 claims
- Estradiol25 claims
- Liothyronine Sodium25 claims
- Rosuvastatin Calcium23 claims
- Levothyroxine Sodium22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $247.24
4 payments; by number, the most common kind was food and beverage; the largest payer was Heartflow, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Darren Alan Farnesi among 17,133 family medicine physician records in California
Darren Alan Farnesi, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 family medicine physician records list a practice address in Spring Valley
They are 12 of the 400 NPPES records with a practice address in Spring Valley, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Spring Valley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lily Au-YeungSpring Valley, CA 919781396635785
- Hanid Audish, DOSpring Valley, CA 919781598975690
- Glenn D'Arpa, D.O.Spring Valley, CA 919781790719482
- Bryan Fox, M.D.Spring Valley, CA 919781245258433
- Robert Lipetz, D.O.Spring Valley, CA 919781467524785
- Merilee Summerfield, PASpring Valley, CA 919781467531988
- Rebecca Bacharach, D.O.Spring Valley, CA 919771225442643
- Arthur Cardones, MDSpring Valley, CA 919771962436451
Common questions
What is Darren Alan Farnesi, M.D.'s NPI number?
Darren Alan Farnesi, M.D.'s National Provider Identifier (NPI) is 1811906175, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Darren Alan Farnesi, M.D. located?
The NPPES record lists a practice address at 10225 Austin Dr, Spring Valley, CA, 91978. Phone: (619) 660-9068. Providers update this record themselves, so call before visiting.
How can I verify Darren Alan Farnesi, M.D.'s license?
NPPES lists California license number A 72585, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Darren Alan Farnesi, M.D. prescribe under Medicare Part D?
In 2024, Darren Alan Farnesi, M.D. had 273 Medicare Part D claims for 41 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.