James Han
NPI 1013073030 · Pain Medicine (Physical Medicine & Rehabilitation) Physician · San Ramon, CA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Han is a Pain Medicine (Physical Medicine & Rehabilitation) Physician provider in San Ramon, CA (NPI 1013073030).
Provider details
- NPI number
- 1013073030
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Physical Medicine & Rehabilitation) PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A10790 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 32 |
| Buprenorphine Hcl | 26 |
| Pregabalin | 25 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 14 |
| Tramadol Hcl | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-28
- Last updated
- 2024-12-23
- Certified
- 2024-12-23
Frequently asked questions
- What is James Han's NPI number?
- James Han's National Provider Identifier (NPI) is 1013073030, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Han's specialty?
- James Han is listed in the NPPES registry with a primary specialty of Pain Medicine (Physical Medicine & Rehabilitation) Physician (Allopathic & Osteopathic Physicians).
- Where is James Han located?
- James Han's practice location on file with NPPES is 1081 Market Pl Ste 600, San Ramon, CA 94583-4750.
- What is James Han's phone number?
- The practice phone number listed in the NPPES registry for James Han is (925) 401-7113.
- Does James Han accept Medicare?
- James Han is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Han's NPI active?
- Yes — James Han's NPI (1013073030) is active in the NPPES registry as of the last update on 2024-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.