MARK MASSAK D.O. – NPI #1952740532
Radiology

A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.

Health Care Provider Taxonomy Code for Radiology

MARK MASSAK is a radiologist located in CHAMBERSBURG, PA. NPPES has assigned the NPI number 1952740532 to MARK MASSAK on June 18, 2013. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI Registry, there are 9 additional location(s) assigned to this provider which are listed below. The primary taxonomy selected by this provider is 2085R0204X from the Health Care Provider Taxonomy code set, which is classified as Radiology, specializing in Vascular & Interventional Radiology

The NPI profile was last updated on Feb 02, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for MARK MASSAK below.

NPI Profile for
MARK MASSAK

NPI Number
1952740532
Enumeration Date

(about 13 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
MARK MASSAK
Credentials
D.O.
Primary location
12 ST. PAUL DRIVE
WELLSPAN RADIOLOGY
CHAMBERSBURG, PA 17201-1035
Phone: (717) 217-6026 Fax:
9 Other location(s):
1201 Letort Springs Way
Carlisle, PA 17015-8011
Phone: (717) 674-7600
112 North 7th Street
WellSpan Radiology
Chambersburg, PA 17201-1720
Phone: (717) 262-4499
169 Martin Ave
Ephrata, PA 17522-1734
Phone: (717) 738-6414
460 N Reading Rd
Ephrata, PA 17522-9606
Phone: (717) 721-4840
36 Robinhood Dr
Etters, PA 17319-9528
Phone: (717) 388-7300
147 Gettys St
Gettysburg, PA 17325-2534
Phone: (717) 337-4207
252 S 4th St
Lebanon, PA 17042-6111
Phone: (717) 270-7732
14781 Wolfe Rd
New Freedom, PA 17349-9571
Phone: (717) 326-1880
35 Monument Rd Ste 201
York, PA 17403-5074
Phone: (717) 812-4083
Mailing address
601 MEMORY LN
YORK, PA 17402-2231
Phone: Fax:
Sole Proprietor
No
Updated
Certification Date
Feb 02, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
2085R0204X
- Radiology / Vascular & Interventional Radiology (Primary)		 PA OS020464

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Endpoint

Health Information Exchange (HEI)

HEI is the mobilization of health care information electronically across organizations within a region, community or hospital system. Endpoints provide a simple and secure way for participants to send authenticated, encrypted health information directly to known, trusted recipients over the internet such as primary care physicians, specialists, hospitals, labs, etc.

Endpoint
[email protected]
Endpoint type
Direct Messaging Address
Endpoint Description
Content Type
Affiliation
N
Endpoint Location
400 HIGHLAND AVE,
LEWISTOWN, PA 77025-1669

Additional Information

Education
LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE - Graduated 2013
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
MARK MASSAK is affiliated with the following medical group(s):
  • HOSPITAL
    • GEISINGER MEDICAL CENTER
      100 NORTH ACADEMY AVENUE
      DANVILLE, PA 17822
    • GEISINGER WYOMING VALLEY MEDICAL CENTER
      1000 EAST MOUNTAIN BOULEVARD
      WILKES BARRE, PA 18711
    • GEISINGER-COMMUNITY MEDICAL CENTER
      1822 MULBERRY STREET
      SCRANTON, PA 18510
    • GEISINGER-LEWISTOWN HOSPITAL
      400 HIGHLAND AVENUE
      LEWISTOWN, PA 17044
    • MOUNT NITTANY MEDICAL CENTER
      1800 EAST PARK AVE
      STATE COLLEGE, PA 16803

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.