Darren Okada, M.D.
Anatomic Pathology & Clinical Pathology Physician · Riverside, CA
Darren Okada, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Riverside, California, and NPI 1134245921, issued on Mar 22, 2007. Check the license (California A55141, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Darren Okada
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- A55141 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4445 Magnolia Ave, Riverside, CA 92501
- Phone
- (951) 788-3243
- Enumerated
- Mar 22, 2007
- Record last updated
- Nov 27, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (951) 788-3633
- Medicare enrollment
- Enrolled (PECOS I20090302000537); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Also registered at 4445 Magnolia Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joey Abadilla, MDStudent in an Organized Health Care Education/Training Program1093417818
- Rashed AbdelaalDiagnostic Radiology Physician1518726090
- Ahmed Abdelhalim, MDDiagnostic Radiology Physician1275162927
- Nirusha AbeydeeraStudent in an Organized Health Care Education/Training Program1295354454
- Alyssa Aboff, CRNA, DNPCertified Registered Nurse Anesthetist1760133292
- Brandon Abrajan, DOStudent in an Organized Health Care Education/Training Program1861141186
Verify Darren Okada in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A55141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $15.15
1 payment: food and beverage; the largest payer was Siemens Medical Solutions USA, Inc. The 2,607 providers of this specialty with any payment received $3,565.00 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 Okada among 1,554 anatomic pathology & clinical pathology physician records in California
Darren Okada, M.D. is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% 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 43% of them.
- NPI issued2007 · 43% of these records are older, 43% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1994 · median 2003 among the 891 with a school on file
- Record last updated2019 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in Riverside → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Steven Aragon, MDRiverside, CA 925011982721320
- Kristina Cendrowski, MDRiverside, CA 925011518239441
- Ralph Korpman, M.D.Riverside, CA 925011548313273
- Michelle Meyer, M.D.Riverside, CA 925011023276771
- Joseph Tang, MDRiverside, CA 925031861609893
- Corina Kwan, D.O.Riverside, CA 925051154694354
- Mary Le, MDRiverside, CA 925051427242403
- Anh Phan, MDRiverside, CA 925051942372271
Common questions
What is Darren Okada, M.D.'s NPI number?
Darren Okada, M.D.'s National Provider Identifier (NPI) is 1134245921, issued on Mar 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Darren Okada, M.D. located?
The NPPES record lists a practice address at 4445 Magnolia Ave, Riverside, CA, 92501. Phone: (951) 788-3243. Providers update this record themselves, so call before visiting.
How can I verify Darren Okada, M.D.'s license?
NPPES lists California license number A55141, 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.
What is Darren Okada, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.