Marcin Chwistek, MD
NPI 1548366321 · Medical Oncology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Hematopoietic Cell Transplantation and Cellular Therapy · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcin Chwistek, MD is a Medical Oncology Physician provider in Philadelphia, PA (NPI 1548366321).
Provider details
- NPI number
- 1548366321
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD 927002 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
19 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
248 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 121 | $97 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $67 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 42 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 28 | $94 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 13 | $147 |
Typical Medicare-allowed amounts for these services range $67–$147 (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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 595 | 95 |
| Pregabalin | 146 | 29 |
| Methadone Hcl | 131 | 12 |
| Buprenorphine | 121 | 35 |
| Gabapentin | 119 | 27 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 101 | 24 |
| Oxycodone Hclbrand: Oxycontin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-16
- Last updated
- 2018-04-09
Frequently asked questions
- What is Marcin Chwistek's NPI number?
- Marcin Chwistek's National Provider Identifier (NPI) is 1548366321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcin Chwistek's specialty?
- Marcin Chwistek is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Marcin Chwistek located?
- Marcin Chwistek's practice location on file with NPPES is 333 Cottman Ave, Philadelphia, PA 19111-2434.
- What is Marcin Chwistek's phone number?
- The practice phone number listed in the NPPES registry for Marcin Chwistek is (215) 728-6900.
- Does Marcin Chwistek accept Medicare?
- Marcin Chwistek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcin Chwistek's NPI active?
- Yes — Marcin Chwistek's NPI (1548366321) is active in the NPPES registry as of the last update on 2018-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.