Physician Profile
Mark L. Sobczak, MD
Unclaimed ProfileAbout Dr. Sobczak
Mark L. Sobczak, MD is a healthcare provider in Philadelphia, PA specializing in radiation oncology. Medicare claims data shows Mark provided 89 services to 36 patients. The services billed most often include ct guidance for insertion of radiation therapy fields and radiation treatment management, 5 treatment sessions.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (215) 728-2581
- Email not available
Practice Locations
333 COTTMAN AVE
Philadelphia, PA 19111
211 S Gulph Rd Ste 200
King Of Prussia, PA 19406
Conditions Commonly Evaluated or Treated
Within Radiation Oncology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Benign condition
Blood and lymph cancer
Bone cancer
Brain tumors
Cancer emergencies
Chest cancer
Endocrine cancer
Eye cancer
Eye conditions
Foot conditions
Gastrointestinal cancer
- Anal cancer
- Bile duct cancer
- Colon cancer
- Esophageal cancer
- Gallbladder cancer
- Liver cancer
- Pancreatic cancer
- Stomach cancer
Gynecologic cancer
Head & neck cancer
Head and neck cancer
Metastatic cancer
Neurologic condition
Orthopedic conditions
Sarcoma
Skin cancer
Thoracic cancer
Urologic cancer
Vascular conditions
Procedures & services
Most searched procedures
Advanced radiation
Benign treatment
Brain radiation
Cancer treatment
Central nervous system
Consultation
External radiation
- Electron beam therapy
- Image-guided radiation (IGRT)
- IMRT (Targeted intensity radiation)
- RapidArc / VMAT radiation
- Total body irradiation (TBI)
Eye cancer treatment
Follow-up care
Heart treatments
Internal radiation
Pain and symptom relief
Particle therapy
Precision radiation
- Adaptive radiation therapy
- Heart-sparing breath hold radiation (DIBH)
- Spine radiosurgery
- Stereotactic body radiation (SBRT)
- Stereotactic radiosurgery (SRS)
- Tattoo-free radiation
Prostate cancer treatment
Prostate protection
Radiation therapy
Skin cancer treatment
Skin lymphoma treatment
Specialized radiation
Targeted isotopes
Targeted radiation drugs
Treatment planning
Procedures Most Often Billed to Medicare
89 services · 36 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
73 | |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other radiation oncologists in Philadelphia 8
Same specialty, same city.
More connections — 8 related providers in 1 group
Also performs Ct guidance for insertion of radiation therapy fields 8
Providers in PA who bill this service to Medicare most often.
Common questions
What is Dr. Sobczak's specialty?
Dr. Sobczak is a radiation oncologist in Philadelphia, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Radiation Oncology”.
NPI registry
Where can I find Dr. Sobczak?
Dr. Sobczak is listed at 333 Cottman Ave, Philadelphia, PA 19111. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Sobczak?
The number on file is (215) 728-2581. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Sobczak?
Dr. Sobczak's National Provider Identifier is 1164422523. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Dr. Sobczak have?
Dr. Sobczak has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Sobczak known for?
According to Medicare billing data, Dr. Sobczak performs imaging including ct guidance for insertion of radiation therapy fields and radiation treatment management, 5 treatment sessions. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Sobczak's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sobczak. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.