Jianyu Xu, M.D.
NPI 1538499934 · Endocrinology, Diabetes & Metabolism Physician · Concord, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jianyu Xu, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Concord, CA (NPI 1538499934).
Provider details
- NPI number
- 1538499934
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A141505 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,230 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 614 | $154 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 447 | $214 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 413 | $19 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 396 | $18 |
| Hemoglobin A1c Level83036 | 92 | $9 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 578 | 177 |
| Alendronate Sodium | 280 | 90 |
| Empagliflozinbrand: Jardiance | 280 | 89 |
| Semaglutidebrand: Ozempic | 237 | 59 |
| Tirzepatidebrand: Mounjaro | 156 | 36 |
| Metformin Hclbrand: Metformin Hcl Er | 127 | 46 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,336 across 110 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2720 Low CtFairfield, CA 94534-9771Phone: (707) 428-8775Fax: (707) 436-2509
Registry dates
- Enumerated
- 2010-01-06
- Last updated
- 2018-10-29
Frequently asked questions
- What is Jianyu Xu's NPI number?
- Jianyu Xu's National Provider Identifier (NPI) is 1538499934, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jianyu Xu's specialty?
- Jianyu Xu is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Jianyu Xu located?
- Jianyu Xu's practice location on file with NPPES is 2700 Grant St Ste 200, Concord, CA 94520-2270.
- What is Jianyu Xu's phone number?
- The practice phone number listed in the NPPES registry for Jianyu Xu is (925) 677-0515.
- Does Jianyu Xu accept Medicare?
- Jianyu Xu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jianyu Xu's NPI active?
- Yes — Jianyu Xu's NPI (1538499934) is active in the NPPES registry as of the last update on 2018-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.