James Sadao Hamada, MD
Orthopaedic Surgery of the Spine Physician · Hawaiian Gardens, CA
James Sadao Hamada, MD is an orthopaedic surgery of the spine physician with a practice address in Hawaiian Gardens, California, and NPI 1508053141, issued on Sep 27, 2007. Check the license (California C30470, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Sadao Hamada
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery of the Spine Physician 207XS0117X
- License number
- C30470 CA
Self-reported in NPPES; status is on the state search - Practice location
- 21500 Pioneer Blvd, Hawaiian Gardens, CA 90716
- Phone
- (310) 543-1391
- Enumerated
- Sep 27, 2007
- Record last updated
- Dec 31, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (310) 540-2344
- Medicaid ID
- 00C304700 CA
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery of the spine physician records → All 314 in California → Look up another NPI →
Also registered at 21500 Pioneer Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ruben Ezquerro, DPMFoot & Ankle Surgery Podiatrist1417950304
- Yvette HolmanPsychiatric/Mental Health Nurse Practitioner1205254125
Verify James Sadao Hamada in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C30470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average orthopaedic surgery of the spine physician in 2024
50 Medicare Part D claims, against an average of 381 among the 1,714 providers of this specialty who prescribed in Part D.
Most prescribed
- Pregabalin17 claims
- Cephalexin12 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.
James Sadao Hamada among 314 orthopaedic surgery of the spine physician records in California
James Sadao Hamada, MD is one of 314 orthopaedic surgery of the spine physician records with a practice address in California. 87% 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 47% of them.
- NPI issued2007 · 47% of these records are older, 39% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2014 · 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 207XS0117X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery of the Spine Physician providers in California
There are 314 orthopaedic surgery of the spine physician records in California.
All 314 in California → Every provider in Hawaiian Gardens → Orthopaedic Surgery of the Spine Physician nationwide →
The 8 orthopaedic surgery of the spine physician records with the nearest ZIP codes
- Johannes Bernbeck, MDLos Alamitos, CA 907201801967849
- Kushagra Verma, M.D.Los Alamitos, CA 907201568788917
- Brandon Ortega, MDLong Beach, CA 908061881135069
- Sarbpaul Bhalla, MDLong Beach, CA 908071013002625
- Paramjit Bhalla, M.D.Long Beach, CA 908071427355296
- Theodore Georgis, M.D.Torrance, CA 905051487889556
- Randolph O'Hara, M.D.Torrance, CA 905051114034477
- Christopher Wolf, MDTorrance, CA 905051396856894
Common questions
What is James Sadao Hamada, MD's NPI number?
James Sadao Hamada, MD's National Provider Identifier (NPI) is 1508053141, issued on Sep 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Sadao Hamada, MD located?
The NPPES record lists a practice address at 21500 Pioneer Blvd, Hawaiian Gardens, CA, 90716. Phone: (310) 543-1391. Providers update this record themselves, so call before visiting.
How can I verify James Sadao Hamada, MD's license?
NPPES lists California license number C30470, 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 James Sadao Hamada, MD prescribe under Medicare Part D?
In 2024, James Sadao Hamada, MD had 50 Medicare Part D claims; the average among orthopaedic surgery of the spine physician prescribers was 381. 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.