Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mark Massak, DO

Individual provider Vascular & Interventional Radiology Physician · NPI 1952740532

Dr. Mark Massak, DO is an Interventional Radiology in Chambersburg, Pennsylvania. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2013, 13 years ago. Practices with Wellspan Medical Group, a 2,342-clinician group, works from 10 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
13
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
PA
In the registry since
2013
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

12 St Paul Drive Wellspan Radiology
Chambersburg, PA 17201-1035
Phone: (717) 217-6026
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (9)

  • 1201 Letort Springs Way, Carlisle, PA 17015-8011 — (717) 674-7600
  • 112 North 7th Street, Chambersburg, PA 17201-1720 — (717) 262-4499
  • 169 Martin Ave, Ephrata, PA 17522-1734 — (717) 738-6414
  • 460 N Reading Rd, Ephrata, PA 17522-9606 — (717) 721-4840
  • 36 Robinhood Dr, Etters, PA 17319-9528 — (717) 388-7300
  • 147 Gettys St, Gettysburg, PA 17325-2534 — (717) 337-4207
  • 252 S 4th St, Lebanon, PA 17042-6111 — (717) 270-7732
  • 14781 Wolfe Rd, New Freedom, PA 17349-9571 — (717) 326-1880
  • 35 Monument Rd Ste 201, York, PA 17403-5074 — (717) 812-4083

Specialties & licences

Vascular & Interventional Radiology Physician (primary) Taxonomy 2085R0204X · Licence OS020464 (PA)

Record details

NPI number1952740532
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 18, 2013
Last updated in NPPESFebruary 2, 2026
Certification dateFebruary 2, 2026
Mailing address601 Memory Ln, York, PA 17402-2231

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERVENTIONAL RADIOLOGY
Also practisesDIAGNOSTIC RADIOLOGY
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2013 (13 years in practice)
Group practice Wellspan Medical Group — 2342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations15 on file with Medicare

Other providers in Chambersburg