James Han
Pain Medicine (Physical Medicine & Rehabilitation) Physician · San Ramon, CA
James Han is a pain medicine (physical medicine & rehabilitation) physician with a practice address in San Ramon, California, and NPI 1013073030, issued on Dec 28, 2006. Check the license (California 20A10790, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Han
- Primary taxonomy
- Pain Medicine (Physical Medicine & Rehabilitation) Physician 2081P2900X
- License number
- 20A10790 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1081 Market PL Ste 600, San Ramon, CA 94583
- Phone
- (925) 401-7113
- Enumerated
- Dec 28, 2006
- Record last updated
- Dec 23, 2024
- Fax
- (855) 422-2762
- Medicare enrollment
- Enrolled (PECOS I20111012000285); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pain medicine (physical medicine & rehabilitation) physician records → All 290 in California → Look up another NPI →
Verify James Han in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A10790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average pain medicine (physical medicine & rehabilitation) physician in 2024
146 Medicare Part D claims for 11 beneficiaries, against an average of 1,479 among the 1,457 providers of this specialty who prescribed in Part D. 61 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen32 claims
- Buprenorphine Hcl26 claims
- Pregabalin25 claims
- Acetaminophen-Codeine14 claims
- Tramadol Hcl12 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 Han among 290 pain medicine (physical medicine & rehabilitation) physician records in California
James Han is one of 290 pain medicine (physical medicine & rehabilitation) physician records with a practice address in California. 85% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2005 · median 2005 among the 196 with a school on file
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2081P2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Physical Medicine & Rehabilitation) Physician providers in California
There are 290 pain medicine (physical medicine & rehabilitation) physician records in California.
All 290 in California → Every provider in San Ramon → Pain Medicine (Physical Medicine & Rehabilitation) Physician nationwide →
The 8 pain medicine (physical medicine & rehabilitation) physician records with the nearest ZIP codes
- Ryan Ferguson, DOUnion City, CA 945871487116000
- Kareem Hubbard, MDSan Leandro, CA 945781922327097
- Jorge Kim, MDSan Leandro, CA 945781982863759
- Alan Kimelman, M.D.Vallejo, CA 945901558474866
- Gregory Miller, M.D.Saint Helena, CA 945741225089790
- Mikiko Murakami, DOWalnut Creek, CA 945971659632339
- Michael Chang, D.O.Walnut Creek, CA 945981205934262
- David Chow, M.D.Walnut Creek, CA 945981700823762
Common questions
What is James Han's NPI number?
James Han's National Provider Identifier (NPI) is 1013073030, issued on Dec 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Han located?
The NPPES record lists a practice address at 1081 Market PL Ste 600, San Ramon, CA, 94583. Phone: (925) 401-7113. Providers update this record themselves, so call before visiting.
How can I verify James Han's license?
NPPES lists California license number 20A10790, 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 Han prescribe under Medicare Part D?
In 2024, James Han had 146 Medicare Part D claims for 11 beneficiaries; the average among pain medicine (physical medicine & rehabilitation) physician prescribers was 1,479. 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.