Antonio Youssef Hardan, MD
Child & Adolescent Psychiatry Physician · Palo Alto, CA
Antonio Youssef Hardan, MD is a child & adolescent psychiatry physician with a practice address in Palo Alto, California, and NPI 1407829286, issued on Feb 10, 2006. Check the license (California C52121, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Antonio Youssef Hardan
- Credential
- MD
- Primary taxonomy
- Child & Adolescent Psychiatry Physician 2084P0804X
- License numbers
- C52121 CA
MD051151L PA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 497-8000
- Enumerated
- Feb 10, 2006
- Record last updated
- Apr 30, 2024
- Medicare enrollment
- Enrolled (PECOS I20060124001002); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest child & adolescent psychiatry physician records → All 1,009 in California → Look up another NPI →
Also registered at 725 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shayda Abadi, NPNurse Practitioner1316745540
- Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
- Alexandra Abbott, MDPediatrics Physician1760018675
- Steven Abboud, MDAnesthesiology Physician1619364908
- Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
- Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235
Verify Antonio Youssef Hardan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C52121Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024
314 Medicare Part D claims, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Risperidone41 claims
- Clonazepam38 claims
- Aripiprazole31 claims
- Trazodone Hcl29 claims
- Fluvoxamine Maleate26 claims
- Topiramate26 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: $1,590.00
1 payment: consulting fee; the largest payer was F. Hoffmann-La Roche AG. The 1,578 providers of this specialty with any payment received $1,427.96 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.
Bills Medicare through one group practice
- Lpch Medical Group Div OF LucilePalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Antonio Youssef Hardan among 1,009 child & adolescent psychiatry physician records in California
Antonio Youssef Hardan, MD is one of 1,009 child & adolescent psychiatry physician records with a practice address in California. 55% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 65% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileYes · 21% of these records are
- Graduated1988 · median 2005 among the 215 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Child & Adolescent Psychiatry Physician providers in California
There are 1,009 child & adolescent psychiatry physician records in California.
All 1,009 in California → Every provider in Palo Alto → Child & Adolescent Psychiatry Physician nationwide →
The 8 child & adolescent psychiatry physician records with the nearest ZIP codes
- Steven Adelsheim, MDPalo Alto, CA 943041245246941
- Anne Benham, M.D.Palo Alto, CA 943041255493540
- Barbara Bentley, PSYDPalo Alto, CA 943041497708648
- Victor Carrion, M.D.Palo Alto, CA 943041083759799
- Jennifer Derenne, MDPalo Alto, CA 943041285684738
- Glen Elliott, PH.D., M.D.Palo Alto, CA 943041104939503
- Kyle Hinman, M.D.Palo Alto, CA 943041750446381
- Shashank Joshi, MDPalo Alto, CA 943041609911932
Common questions
What is Antonio Youssef Hardan, MD's NPI number?
Antonio Youssef Hardan, MD's National Provider Identifier (NPI) is 1407829286, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Antonio Youssef Hardan, MD located?
The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.
How can I verify Antonio Youssef Hardan, MD's license?
NPPES lists California license number C52121, 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 Antonio Youssef Hardan, MD prescribe under Medicare Part D?
In 2024, Antonio Youssef Hardan, MD had 314 Medicare Part D claims; the average among child & adolescent psychiatry physician prescribers was 504. 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.