Daphne Sarah Horowitz, MD
Pediatrics Physician · Valencia, CA
Daphne Sarah Horowitz, MD is a pediatrics physician with a practice address in Valencia, California, and NPI 1841357183, issued on Jan 3, 2007. Check the license (California A51632, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daphne Sarah Horowitz
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A51632 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27420 Tourney RD Ste 150, Valencia, CA 91355
- Phone
- (661) 259-8999
- Enumerated
- Jan 3, 2007
- Record last updated
- Feb 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (661) 705-0110
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 27420 Tourney RD Ste 150
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Cooper, MD/MPHPediatrics Physician1366602138
Verify Daphne Sarah Horowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A51632Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $761.69
21 payments; by number, the most common kind was food and beverage; the largest payer was Mirum Pharmaceuticals, Inc. The 21,580 providers of this specialty with any payment received $842.05 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.
Daphne Sarah Horowitz among 9,272 pediatrics physician records in California
Daphne Sarah Horowitz, MD is one of 9,272 pediatrics physician records with a practice address in California. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 43% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2019 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Valencia → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Adrienne Altman, M.D.Valencia, CA 913551447384490
- Michelle Campana, M.D.Valencia, CA 913551003075714
- Hasan Chowdhury, M.D.Valencia, CA 913551114945235
- Pamela Colby, M.D.Valencia, CA 913551629009188
- Amy Cooper, MD/MPHValencia, CA 913551366602138
- Harris Greenwald, M.D.Valencia, CA 913551760546675
- Peter Kim, M.D.Valencia, CA 913551467477638
- Paula Kuhlman, M.D.Santa Clarita, CA 913551053303883
Common questions
What is Daphne Sarah Horowitz, MD's NPI number?
Daphne Sarah Horowitz, MD's National Provider Identifier (NPI) is 1841357183, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Daphne Sarah Horowitz, MD located?
The NPPES record lists a practice address at 27420 Tourney RD Ste 150, Valencia, CA, 91355. Phone: (661) 259-8999. Providers update this record themselves, so call before visiting.
How can I verify Daphne Sarah Horowitz, MD's license?
NPPES lists California license number A51632, 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.
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.