Dr. Mark Seeley , MD
Orthopaedic Surgery β’ Hershey, PA
500 University Dr
Hershey, PA 170332360
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
500 University Dr
Hershey, PA 170332360
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Baton Rouge, LA; Danville, PA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Geisinger Clinic; Tidalhealth Physician Network, Inc.. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2009
What Public CMS Data Show
Orthopaedic Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2025
All general payments: $51,377.22 across 13 records.
By nature of payment (3 largest of 4)
- Royalty or License: $40,161.31 across 1 record.
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $10,150.00 across 5 records.
- Travel and Lodging: $937.75 across 3 records.
Reporting-company totals
- OrthoPediatrics Corp.: $51,318.07 across 11 records.
- Stryker Corporation: $59.15 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
17 years (graduated 2009)
CMS Doctors and Clinicians data list 2009 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2009
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Seeley has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Seeley as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Hershey and Pennsylvania
29 active clinicians are listed under Orthopaedic Surgery with a practice address in Hershey, PA (1,254 in Pennsylvania).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Hershey
10.3% of these 29 clinicians have the CMS telehealth indicator.
62.1% of these 29 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) increased 125% from $22,800.24 in 2021 to $51,377.22 in 2025.
- 2021: $22,800.24
- 2022: $28,467.76
- 2023: $31,401.67
- 2024: $37,563.35
- 2025: $51,377.22
Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 β December 31, 2025): 13 records totaling $51,377.22.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| OrthoPediatrics Corp. |
Royalty or License
Cash or cash equivalent
|
β | General | $40,161.31 |
| OrthoPediatrics Corp. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
β | General | $3,400.00 |
| OrthoPediatrics Corp. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
β | General | $3,250.00 |
| OrthoPediatrics Corp. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
β | General | $1,750.00 |
| OrthoPediatrics Corp. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
β | General | $1,250.00 |
| OrthoPediatrics Corp. |
Travel and Lodging
Cash or cash equivalent
|
β | General | $596.97 |
| OrthoPediatrics Corp. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
β | General | $500.00 |
| OrthoPediatrics Corp. |
Travel and Lodging
Cash or cash equivalent
|
β | General | $266.86 |
| OrthoPediatrics Corp. |
Travel and Lodging
Cash or cash equivalent
|
β | General | $73.92 |
| OrthoPediatrics Corp. |
Food and Beverage
Cash or cash equivalent
|
β | General | $42.98 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
PANGEA | General | $36.31 |
| OrthoPediatrics Corp. |
Food and Beverage
Cash or cash equivalent
|
β | General | $26.03 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
PANGEA | General | $22.84 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-06-09NUCC Taxonomy Code: 207X00000X
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
NUCC Taxonomy Code: 207X00000X
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
NUCC Taxonomy Code: 207X00000X
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ORTHOPEDIC SURGERY
I20240904002290
DE
9234446089
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Geisinger Clinic
100 N Academy Ave, Danville, PA 178229800
Phone: 5702716211
Tidalhealth Physician Network, Inc.
None, Seaford, DE 19973
Phone: 30262966118802
Secondary Practice Locations
8200 Constantin Blvd Fl 1
Baton Rouge, LA 708093481
Phone: 2257655500
16 Woodbine Lane
Danville, PA 178228029
Phone: 5702716700
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery
Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)
Physician Assistant - Medical
Physician Assistant (Certified)
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery
Physician Assistant
Physician Assistant (Certified)
Orthopaedic Surgery - Foot and Ankle Surgery
Certified Registered Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 500 UNIVERSITY DR, HERSHEY, PA 170332360 (Tel: 7175315638)
Registered at 500 UNIVERSITY DR MC CA410, HERSHEY, PA 170332360 (Tel: 7175315208)
Orthopaedic Surgery (license number reported to NPPES: PA MD452143)
Registered at 500 UNIVERSITY DR, HERSHEY, PA 170332360 (Tel: 7175315638)
Orthopaedic Surgery (license number reported to NPPES: MI 4301094371)
Orthopaedic Surgery (license number reported to NPPES: PA MD452143)
Registered at 500 UNIVERSITY DRIVE MC CA 410, HERSHEY, PA 170332360 (Tel: 7175315638)
Orthopaedic Surgery (license number reported to NPPES: MI 4301094371)
Orthopaedic Surgery (license number reported to NPPES: PA MD452143)
Registered at 16 WOODBINE LANE, DANVILLE, PA 178228029 (Tel: 5702716700)
Orthopaedic Surgery (license number reported to NPPES: PA MT205542)
Orthopaedic Surgery (license number reported to NPPES: MI 4301094371)
NPI status registered as active in NPPES database
Registered at 115 WOODBINE LN, DANVILLE, PA 178219118 (Tel: 5702716700)
Registered at 100 N ACADEMY AVE, DANVILLE, PA 178224903 (Tel: (570) 271-6144)
Recorded as MARK SEELEY, MD
Orthopaedic Surgery (license number reported to NPPES: PA MD452143)
NPI status registered as active in NPPES database
Registered at 3401 CIVIC CENTER BLVD, PEDIATRIC ORTHOPAEDIC SURGERY, PHILADELPHIA, PA 19104 (Tel: 2155901535)
Registered at 3401 CIVIC CENTER BLVD, PEDIATRIC ORTHOPAEDIC SURGERY, PHILADELPHIA, PA 19104
Recorded as MARK SEELEY, MD
Orthopaedic Surgery (license number reported to NPPES: MI 4301094371)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Orthopaedic Surgery Specialists in Hershey
- Dr. Jesse Bible, MD, MHS
- Dr. Paul Juliano, MD
- Dr. Arun Kumar, MD
- Dr. Mark Mason, MD
- Dr. Nathan Lanham, MD
- Dr. Kenneth Taylor, MD
Mailing Address
500 University Dr Mc Ca410
Hershey, PA 170332360
Phone: 7175315208