Xiao Yang, M.D.
NPI 1548220304 · Internal Medicine Physician · Pittsburg, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Xiao Yang, M.D. is a Internal Medicine Physician provider in Pittsburg, CA (NPI 1548220304).
Provider details
- NPI number
- 1548220304
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A94954 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,882 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 1,038 | $153 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 218 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 190 | $154 |
| Chronic Care Management Services for Two Or More Chronic Conditions, First 30 Minutes Provided Personally By Health Care Professional, Per Calendar Month99491 | 118 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 78 | $156 |
| Advance Care Planning, First 30 Minutes99497 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 294 | 110 |
| Metformin Hcl | 193 | 74 |
| Amlodipine Besylate | 191 | 71 |
| Losartan Potassium | 124 | 44 |
| Alendronate Sodium | 117 | 44 |
| Empagliflozinbrand: Jardiance | 106 | 37 |
| Sitagliptin Phosphate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-24
- Last updated
- 2026-02-18
- Certified
- 2026-02-18
Frequently asked questions
- What is Xiao Yang's NPI number?
- Xiao Yang's National Provider Identifier (NPI) is 1548220304, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Xiao Yang's specialty?
- Xiao Yang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Xiao Yang located?
- Xiao Yang's practice location on file with NPPES is 2260 Gladstone Dr Ste 8, Pittsburg, CA 94565-5125.
- What is Xiao Yang's phone number?
- The practice phone number listed in the NPPES registry for Xiao Yang is (925) 301-8487.
- Does Xiao Yang accept Medicare?
- Xiao Yang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Xiao Yang's NPI active?
- Yes — Xiao Yang's NPI (1548220304) is active in the NPPES registry as of the last update on 2026-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.