NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Worden Richardson, MD

Orthopaedic Surgery Physician in York, PA · enumerated 2006 · practices at Wellspan Medical Group.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1477623734

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Worden Richardson
Credential MD
Sex Male
Practice address 25 Monument Rd Ste 290, York, PA, 17403
Phone (717) 812-4090
Fax (717) 812-4092
Enumeration date Nov 8, 2006
Last updated in NPPES Mar 19, 2025

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD045027L (PA) Primary
207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License M9611 (TX) Secondary
207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License MD045027L (PA) Secondary
207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License D0083697 (MD) Secondary
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
20090718 Other PA AMERIHEALTH MERCY
276293 Other PA UNISON HEALTH PLAN (WMG)
1582870 Other PA GATEWAY-WMG
102308043 Medicaid PA -
2105495 Other PA HIGHMARK BLUE SHIELD
951704 Other MD CAREFIRST MD BCBS

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.

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Frequently asked questions

What specialty is Mark Richardson?
Mark Richardson is registered in NPPES with the primary taxonomy of Orthopaedic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-19.