Hernan P. Castro-Rueda, M.D.
Rheumatology Physician · Mission Viejo, CA
Hernan P. Castro-Rueda, M.D. is a rheumatology physician with a practice address in Mission Viejo, California, and NPI 1720162092, issued on Oct 24, 2006. Check the license (California A96092, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hernan P. Castro-Rueda
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- A96092 CA
036116360 IL
Self-reported in NPPES; status is on the state search - Practice location
- 26800 Crown Valley Pkwy, Mission Viejo, CA 92691
- Phone
- (949) 364-7246
- Enumerated
- Oct 24, 2006
- Record last updated
- Oct 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (949) 364-1647
- Medicare enrollment
- Enrolled (PECOS I20101108000737); 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 26800 Crown Valley Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennifer Altamira, ACNPAcute Care Nurse Practitioner1205815248
- Habib Azad, M.D.Nephrology Physician1114962610
- Bahman Badie, M.D.Internal Medicine Physician1396721916
- Mehrnaz Badie, M.D.Internal Medicine Physician1831212885
Verify Hernan P. Castro-Rueda in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96092Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average rheumatology physician in 2024
2,316 Medicare Part D claims for 376 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 33 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate578 claims
- Prednisone322 claims
- Methotrexate218 claims
- Allopurinol211 claims
- Methylprednisolone96 claims
- Celecoxib80 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: $4,425.82
181 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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
- Providence Medical FoundationFullerton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hernan P. Castro-Rueda among 926 rheumatology physician records in California
Hernan P. Castro-Rueda, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2000 · median 2003 among the 641 with a school on file
- Record last updated2021 · 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 Mission Viejo → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Catherine Driver, M.D.Mission Viejo, CA 926911356469266
- Fatemeh Jafari Farshami, M.D.Mission Viejo, CA 926911386049260
- Jaya Philipose, M.D.Mission Viejo, CA 926911477671386
- Willilam Shiel, M.D.Mission Viejo, CA 926911699752683
- Simranjit Singh, MDMission Viejo, CA 926911396164356
- Paul Wehrle, M.D.Mission Viejo, CA 926911033197835
- Krishan Khurana, MDSanta Ana, CA 927011972606549
- Jeff Sarkozi, M.D.Santa Ana, CA 927051699812388
Common questions
What is Hernan P. Castro-Rueda, M.D.'s NPI number?
Hernan P. Castro-Rueda, M.D.'s National Provider Identifier (NPI) is 1720162092, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hernan P. Castro-Rueda, M.D. located?
The NPPES record lists a practice address at 26800 Crown Valley Pkwy, Mission Viejo, CA, 92691. Phone: (949) 364-7246. Providers update this record themselves, so call before visiting.
How can I verify Hernan P. Castro-Rueda, M.D.'s license?
NPPES lists California license number A96092, 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 Hernan P. Castro-Rueda, M.D. prescribe under Medicare Part D?
In 2024, Hernan P. Castro-Rueda, M.D. had 2,316 Medicare Part D claims for 376 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.