James W. Roh, MD
Hospitalist Physician · Orange, CA
James W. Roh, MD is a hospitalist physician with a practice address in Orange, California, and NPI 1033222500, issued on Aug 17, 2006. Check the license (California G88140, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James W. Roh
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- G88140 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2501 E Chapman Ave, Orange, CA 92869
- Phone
- (714) 639-9401
- Enumerated
- Aug 17, 2006
- Record last updated
- Nov 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (714) 639-7095
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 2501 E Chapman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anwar Abdelhadi, M.D.Hospitalist Physician1093784191
- Aladean Abdrabbo, M.D.Internal Medicine Physician1578905675
- Saif Al Yaseen, M.D.Internal Medicine Physician1356684096
- Nicole Awad, M.D.Family Medicine Physician1295821189
- Albert Bach, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1922355742
Verify James W. Roh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G88140Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average hospitalist physician in 2024
177 Medicare Part D claims for 84 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Cephalexin15 claims
- Furosemide15 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 W. Roh among 3,099 hospitalist physician records in California
James W. Roh, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Orange → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Anwar Abdelhadi, M.D.Orange, CA 928691093784191
- Jason Caberto, D.O.Orange, CA 928691144592924
- Eui Cha, M.D.Orange, CA 928691497047757
- Roger Chang, M.D.Orange, CA 928691730158239
- Frederick Chua, M.D.Orange, CA 928681477180701
- Varun Dang, MDOrange, CA 928681043888274
- Sean Dornbush, DOOrange, CA 928681538798236
- Paul EliasOrange, CA 928681730765157
Common questions
What is James W. Roh, MD's NPI number?
James W. Roh, MD's National Provider Identifier (NPI) is 1033222500, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James W. Roh, MD located?
The NPPES record lists a practice address at 2501 E Chapman Ave, Orange, CA, 92869. Phone: (714) 639-9401. Providers update this record themselves, so call before visiting.
How can I verify James W. Roh, MD's license?
NPPES lists California license number G88140, 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 W. Roh, MD prescribe under Medicare Part D?
In 2024, James W. Roh, MD had 177 Medicare Part D claims for 84 beneficiaries; the average among hospitalist physician prescribers was 521. 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.