Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark Nevin Heinly, MD
Psychiatry Physician in Lemoyne, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1265502561
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark Nevin Heinly
Credential MD
Sex Male
Practice address 20 Erford Rd, Suite 202, Lemoyne, PA, 17043
Phone (717) 737-3500
Fax (717) 795-8841
Enumeration date Nov 8, 2006
Last updated in NPPES Jun 25, 2020
Taxonomy & licenses
2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License MD053565L (PA) Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD053565L (PA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0017075500002 | Medicaid | PA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Mark Heinly practice?
The practice location on file with NPPES is in Lemoyne, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Heinly?
The National Provider Identifier (NPI) for Mark Heinly is 1265502561, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Richard Fonte Psychiatry Physician · Lemoyne, PA NPI 1518911627 Shawna Brent Child & Adolescent Psychiatry Physician · Lemoyne, PA NPI 1649360587 Susan Gilius Psychologist · Lemoyne, PA NPI 1144398728 Psychiatric Associates of Central Pennsylvania Neurology Physician · Lemoyne, PA NPI 1528193760 Sarah Lynch General Practice Dentistry · Lemoyne, PA NPI 1003948019 Cumberland Psychiatric Associates Psychiatry Physician · Lemoyne, PA NPI 1437279395 Corinne Payne Clinical Social Worker · Lemoyne, PA NPI 1194097253 Regina Daniel Clinical Social Worker · Lemoyne, PA NPI 1194088740
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-25.