Haidy Adel Tawfik Youssef, M.D.
Rheumatology Physician · Corona, CA
Haidy Adel Tawfik Youssef, M.D. is a rheumatology physician with a practice address in Corona, California, and NPI 1881056489, issued on Mar 23, 2016. Check the license (California A160111, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Haidy Adel Tawfik Youssef
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A160111 CA
Self-reported in NPPES; status is on the state search - Practice location
- 21634 Retreat Pkwy, Corona, CA 92883
- Phone
- (951) 493-6945
- Enumerated
- Mar 23, 2016
- Record last updated
- Jul 30, 2025
- Fax
- (951) 826-8157
- Medicare enrollment
- Enrolled (PECOS I20221103001310); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 21634 Retreat Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anand Bhupathy, D.O.Dermatology Physician1881790418
- Simran Brar, DOEndocrinology, Diabetes & Metabolism Physician1164783908
- Steven Deterville, MDPediatrics Physician1700860285
Verify Haidy Adel Tawfik Youssef in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A160111Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,319 Medicare Part D claims for 279 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Meloxicam160 claims
- Prednisone159 claims
- Hydroxychloroquine Sulfate153 claims
- Methotrexate67 claims
- Duloxetine Hcl63 claims
- Alendronate Sodium62 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: $778.64
43 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Riverside Medical Clinic IncRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Haidy Adel Tawfik Youssef among 926 rheumatology physician records in California
Haidy Adel Tawfik Youssef, M.D. is one of 926 rheumatology 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 2016, is newer than 85% of them.
- NPI issued2016 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2011 · median 2003 among the 641 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Corona → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Amin Attia, MDCorona, CA 928821578626909
- Natalia Chavez Stewart, M.D.Corona, CA 928791235278250
- Saleem Waraich, M.D.Placentia, CA 928701164601332
- Mehrnaz Hojjati, M. D.Orange, CA 928691720029135
- Bao Quynh Huynh, M.D.Orange, CA 928691538313648
- Andrew Phan, M.D.Orange, CA 928691710164736
- Tun Tun Aung, DOOrange, CA 928681922676824
- Caroline BuiOrange, CA 928681821626482
Common questions
What is Haidy Adel Tawfik Youssef, M.D.'s NPI number?
Haidy Adel Tawfik Youssef, M.D.'s National Provider Identifier (NPI) is 1881056489, issued on Mar 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Haidy Adel Tawfik Youssef, M.D. located?
The NPPES record lists a practice address at 21634 Retreat Pkwy, Corona, CA, 92883. Phone: (951) 493-6945. Providers update this record themselves, so call before visiting.
How can I verify Haidy Adel Tawfik Youssef, M.D.'s license?
NPPES lists California license number A160111, 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 Haidy Adel Tawfik Youssef, M.D. prescribe under Medicare Part D?
In 2024, Haidy Adel Tawfik Youssef, M.D. had 1,319 Medicare Part D claims for 279 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.