Benjamin Kim-Wakamatsu, MD
Emergency Medicine Physician · Newport Beach, CA
Benjamin Kim-Wakamatsu, MD is an emergency medicine physician with a practice address in Newport Beach, California, and NPI 1457409476, issued on Jan 8, 2007. Check the license (California A89026, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Benjamin Kim-Wakamatsu
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A89026 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Hoag Drive, Newport Beach, CA 92658
- Phone
- (949) 764-5689
- Enumerated
- Jan 8, 2007
- Record last updated
- Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1 Hoag Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abhinandan Bharne, M.D.Pulmonary Disease Physician1235229311
- Howard Epstein, M.D.Anatomic Pathology & Clinical Pathology Physician1003852674
- Margaret Morley, NPAdult Health Nurse Practitioner1992937049
- Janice Robinson, PTPhysical Therapist1174669154
- Denise Van Horn, M. D.Anatomic Pathology & Clinical Pathology Physician1699706242
Verify Benjamin Kim-Wakamatsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A89026Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average emergency medicine physician in 2024
211 Medicare Part D claims for 137 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 37 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen31 claims
- Prednisone15 claims
- Ciprofloxacin Hcl14 claims
- Cefadroxil12 claims
- Ondansetron Odt11 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: $115.59
1 payment: food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 12,335 providers of this specialty with any payment received $953.79 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.
Benjamin Kim-Wakamatsu among 7,751 emergency medicine physician records in California
Benjamin Kim-Wakamatsu, MD is one of 7,751 emergency medicine 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Newport Beach → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brett Hadley, D.O.Aliso Viejo, CA 926561932499829
- Heather Marino, D.O.Newport Beach, CA 926601619273018
- Dina Seif, M.D.Newport Beach, CA 926601598904641
- Scott Shreeve, MDAliso Viejo, CA 926561891832051
- Guneet SinghAliso Viejo, CA 926561073976916
- Eric Alcouloumre, M.D.Newport Beach, CA 926631568425312
- Dwight Arakaki, M.DLaguna Hills, CA 926531376653360
- Joshua Bobko, MDLaguna Hills, CA 926531235397621
Common questions
What is Benjamin Kim-Wakamatsu, MD's NPI number?
Benjamin Kim-Wakamatsu, MD's National Provider Identifier (NPI) is 1457409476, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Kim-Wakamatsu, MD located?
The NPPES record lists a practice address at 1 Hoag Drive, Newport Beach, CA, 92658. Phone: (949) 764-5689. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Kim-Wakamatsu, MD's license?
NPPES lists California license number A89026, 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 Benjamin Kim-Wakamatsu, MD prescribe under Medicare Part D?
In 2024, Benjamin Kim-Wakamatsu, MD had 211 Medicare Part D claims for 137 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.