Xisui Chen, M.D.
NPI 1821484239 · Internal Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Xisui Chen, M.D. is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1821484239).
Provider details
- NPI number
- 1821484239
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD465737 (PA)
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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
323 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 | 124 | $142 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 84 | $9 |
| 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 | 68 | $18 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 34 | $145 |
| Administration of Influenza Virus VaccineG0008 | 13 | $36 |
Typical Medicare-allowed amounts for these services range $9–$145 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 213 | 64 |
| Amlodipine Besylate | 122 | 34 |
| Levothyroxine Sodium | 95 | 20 |
| Metoprolol Succinate | 88 | 24 |
| Losartan Potassium | 86 | 27 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 80 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
Registry dates
- Enumerated
- 2015-04-13
- Last updated
- 2018-09-18
Frequently asked questions
- What is Xisui Chen's NPI number?
- Xisui Chen's National Provider Identifier (NPI) is 1821484239, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Xisui Chen's specialty?
- Xisui Chen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Xisui Chen located?
- Xisui Chen's practice location on file with NPPES is 3801 Filbert St, Philadelphia, PA 19104-2640.
- What is Xisui Chen's phone number?
- The practice phone number listed in the NPPES registry for Xisui Chen is (215) 662-9990.
- Does Xisui Chen accept Medicare?
- Xisui Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Xisui Chen's NPI active?
- Yes — Xisui Chen's NPI (1821484239) is active in the NPPES registry as of the last update on 2018-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.