Haishan Xu, M.D.
NPI 1235426222 · Internal Medicine Physician · French Camp, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Haishan Xu, M.D. is a Internal Medicine Physician provider in French Camp, CA (NPI 1235426222).
Provider details
- NPI number
- 1235426222
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A130000 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 452 | 154 |
| Losartan Potassium | 278 | 99 |
| Amlodipine Besylate | 245 | 90 |
| Levothyroxine Sodium | 142 | 49 |
| Lisinopril | 133 | 46 |
| Alendronate Sodium | 123 | 47 |
| Atenolol | 105 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-29
- Last updated
- 2021-12-15
Frequently asked questions
- What is Haishan Xu's NPI number?
- Haishan Xu's National Provider Identifier (NPI) is 1235426222, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Haishan Xu's specialty?
- Haishan Xu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Haishan Xu located?
- Haishan Xu's practice location on file with NPPES is 500 W Hospital Rd, French Camp, CA 95231-9693.
- What is Haishan Xu's phone number?
- The practice phone number listed in the NPPES registry for Haishan Xu is (209) 468-6600.
- Does Haishan Xu accept Medicare?
- Haishan Xu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Haishan Xu's NPI active?
- Yes — Haishan Xu's NPI (1235426222) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.