Dr. David Chen, MD
What this data tells you about Dr. Chen
Dr. David Chen is a rheumatology specialist in Philadelphia, PA, with 17 years of NPI registration. Based on federal Medicare data, Dr. Chen performed 29,862 Medicare services across 971 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chen received a total of $10,016 from 40 pharmaceutical and/or device companies across 553 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in rheumatology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Chen is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Romosozumab injection (Evenity) for osteoporosis | 16,590 | $8 | $24 |
| Denosumab injection (Prolia/Xgeva) | 9,480 | $18 | $27 |
| Extended-release steroid injection (Zilretta) An injection of triamcinolone acetonide using a preservative-free, extended-release microsphere formulation. The dosage is measured in milligrams. |
2,016 | $13 | $32 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
563 | $95 | $150 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
319 | $11 | $100 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
125 | $8 | $9 |
| Injection, methylprednisolone acetate, 40 mg | 119 | $6 | $20 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
117 | $65 | $200 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
96 | $54 | $300 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
95 | $109 | $300 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
95 | $137 | $200 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
95 | $7 | $320 |
| New patient office visit, complex (60-74 min) | 84 | $169 | $300 |
| Hyaluronan intra-articular injection An injection of hyaluronan or a derivative into a joint to provide lubrication and cushioning. |
30 | $561 | $4,000 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
14 | $32 | $40 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
13 | $109 | $250 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
11 | $76 | $300 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Chen is a mixed practice specialist, with above-average Medicare volume (top 26% in PA), with low-engagement industry engagement, with 17 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Chen experienced with romosozumab injection (evenity) for osteoporosis?
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How do Dr. Chen's costs compare to other rheumatologists in Philadelphia?
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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