Mark Judson Collin, M.D.
Emergency Medicine · Harrisburg, PA
At a glance
111 S Front St, Harrisburg, PA 17101-2010
Published activity: Removal of nail tissue. View counts and coverage
NPPES record updated Mar 5, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
111 S Front StHarrisburg, PA 17101-2010
Additional reported practice locations
252 S 4Th StLebanon, PA 170426111
Phone: 7172707688 169 Martin Ave
Ephrata, PA 175221734
Phone: 7177386420 147 Gettys St
Gettysburg, PA 173252534
Phone: 7173374168 1001 S George St
York Hospital
York, PA 174033676
Phone: 7178512311
Fax: 7178513469
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2014
- CMS specialties
- Emergency Medicine
Practice groups
Reported hospital affiliations
- Upmc Pinnacle Hospitals Harrisburg, PA
- Wellspan Ephrata Community Hospital Ephrata, PA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Removal of nail tissue | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Emergency Medicine
- Taxonomy code
- 207P00000X
- Enumeration date
- May 1, 2014
- Record updated
- Mar 5, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207P00000X · Primary
License reported: MT205865 PA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
111 S Front StHarrisburg, PA 17101-2010
- Phone
- (717) 988-0000
- Fax
- (717) 782-5716
Mailing address
111 S FRONT STHARRISBURG, PA 171012010
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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