Timothy Chen, M.D.
NPI 1336188549 · Radiation Oncology Physician · Pennington, NJ
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Chen, M.D. is a Radiation Oncology Physician provider in Pennington, NJ (NPI 1336188549).
Provider details
- NPI number
- 1336188549
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA07644800 (NJ)
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,327 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) |
|---|---|---|
| Calculation of Radiation Therapy Dose77300 | 620 | $36 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 537 | $49 |
| Design and Construction of Complex Radiation Treatment Device77334 | 263 | $67 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 174 | $212 |
| Complex Radiation Therapy Planning77263 | 77 | $186 |
| 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 | 77 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dexamethasone | 42 | 27 |
| Alprazolam | 21 | 17 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$615 across 5 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 (3)
- One Capital WayPennington, NJ 08534-5227Phone: (609) 303-4244Fax: (609) 303-4156
- One Capital Way Radiation Oncology DeptPennington, NJ 08534-5227Phone: (609) 303-4244Fax: (609) 303-4156
- One Capital WayAttention Pathology DepartmentPennington, NJ 08534-5227Phone: (609) 303-4244Fax: (609) 303-4156
Registry dates
- Enumerated
- 2006-06-05
- Last updated
- 2021-05-17
- Certified
- 2021-05-17
Frequently asked questions
- What is Timothy Chen's NPI number?
- Timothy Chen's National Provider Identifier (NPI) is 1336188549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Chen's specialty?
- Timothy Chen is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Chen located?
- Timothy Chen's practice location on file with NPPES is One Capital Way Radiation Oncology Dept, Pennington, NJ 08534-5227.
- What is Timothy Chen's phone number?
- The practice phone number listed in the NPPES registry for Timothy Chen is (609) 303-4244.
- Does Timothy Chen accept Medicare?
- Timothy Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Chen's NPI active?
- Yes — Timothy Chen's NPI (1336188549) is active in the NPPES registry as of the last update on 2021-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.