James Benjamin Chen, M.D.
Adult Reconstructive Orthopaedic Surgery Physician · Mission Viejo, CA
James Benjamin Chen, M.D. is an adult reconstructive orthopaedic surgery physician with a practice address in Mission Viejo, California, and NPI 1104210152, issued on Mar 26, 2015. Check the license (California A147355, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Benjamin Chen
- Credential
- M.D.
- Primary taxonomy
- Adult Reconstructive Orthopaedic Surgery Physician 207XS0114X
- License number
- A147355 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26401 Crown Valley Pkwy Ste 101, Mission Viejo, CA 92691
- Phone
- (949) 348-4000
- Enumerated
- Mar 26, 2015
- Record last updated
- Sep 13, 2022
- Fax
- (949) 348-7466
- Medicare enrollment
- Enrolled (PECOS I20210315002225); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult reconstructive orthopaedic surgery physician records → All 147 in California → Look up another NPI →
Also registered at 26401 Crown Valley Pkwy Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sydney CohenPhysician Assistant1437986171
- Connor GalbraithPhysician Assistant1619783156
- Stephen Gardner, M.D.Orthopaedic Surgery Physician1871753392
- Evan Guerrero, M.D.Orthopaedic Hand Surgery Physician1346635125
- Tiva Hanjan, M.D.Physical Medicine & Rehabilitation Physician1689729253
- Omid Jalali, MDOrthopaedic Surgery of the Spine Physician1982227526
Verify James Benjamin Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A147355Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% more Medicare Part D claims than the average adult reconstructive orthopaedic surgery physician in 2024
816 Medicare Part D claims for 307 beneficiaries, against an average of 579 among the 1,112 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 192 claims were for opioids.
Most prescribed
- Meloxicam247 claims
- Oxycodone Hcl100 claims
- Amoxicillin81 claims
- Tramadol Hcl81 claims
- Cefadroxil57 claims
- Methocarbamol57 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: $136,520.53
155 payments; by number, the most common kind was education; the largest payer was Zimmer Biomet Holdings, Inc. The 1,060 providers of this specialty with any payment received $68,015.27 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
- Community Orthopedic Medical GroupMission Viejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Benjamin Chen among 147 adult reconstructive orthopaedic surgery physician records in California
James Benjamin Chen, M.D. is one of 147 adult reconstructive orthopaedic surgery physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 73% of them.
- NPI issued2015 · 73% of these records are older, 20% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2015 · median 2009 among the 112 with a school on file
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0114X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Reconstructive Orthopaedic Surgery Physician providers in California
There are 147 adult reconstructive orthopaedic surgery physician records in California.
All 147 in California → Every provider in Mission Viejo → Adult Reconstructive Orthopaedic Surgery Physician nationwide →
The 8 adult reconstructive orthopaedic surgery physician records with the nearest ZIP codes
- Nikhil Chokshi, MDFountain Valley, CA 927081942413018
- Michael Kim-Orden, MDFountain Valley, CA 927081326457839
- James Caillouette, M.D.Newport Beach, CA 926601467489492
- Steven Gausewitz, M.D.Newport Beach, CA 926601215979695
- Nader Nassif, M.D.Newport Beach, CA 926601629262183
- Matthew Siljander, MDNewport Beach, CA 926601831509355
- Larry Gersten, M.D.Laguna Woods, CA 926371417950064
- Abraham Kim, M.D.Laguna Woods, CA 926371902123789
Common questions
What is James Benjamin Chen, M.D.'s NPI number?
James Benjamin Chen, M.D.'s National Provider Identifier (NPI) is 1104210152, issued on Mar 26, 2015. An NPI identifies a provider in billing; it is not a license.
Where is James Benjamin Chen, M.D. located?
The NPPES record lists a practice address at 26401 Crown Valley Pkwy Ste 101, Mission Viejo, CA, 92691. Phone: (949) 348-4000. Providers update this record themselves, so call before visiting.
How can I verify James Benjamin Chen, M.D.'s license?
NPPES lists California license number A147355, 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 Benjamin Chen, M.D. prescribe under Medicare Part D?
In 2024, James Benjamin Chen, M.D. had 816 Medicare Part D claims for 307 beneficiaries; the average among adult reconstructive orthopaedic surgery physician prescribers was 579. 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.