Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Robert E Guilday, MD
Surgery Physician in Chester, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1760452494
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Registry record
Entity type Individual (Type 1)
Name Robert E Guilday
Credential MD
Sex Male
Practice address One Medical Center Blvd, Suite 241, Chester, PA, 19013
Phone (610) 619-7400
Fax (610) 872-4015
Enumeration date Jan 25, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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 |
|---|---|---|---|
| 00016518490003 | 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
What specialty is Robert Guilday?
Robert Guilday is registered in NPPES with the primary taxonomy of 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.
Other providers at this practice address
Browse all → Calvin Stafford Neurology Physician · Upland, PA NPI 1023014628 Pei Ann Kong Internal Medicine Physician · Upland, PA NPI 1912999798 Zsofia Szep Infectious Disease Physician · Upland, PA NPI 1588651491 Kurt Muetterties Vascular & Interventional Radiology Physician · Chester, PA NPI 1619967908 Charles Geller Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Upland, PA NPI 1417932880 Mary Patton Surgery Physician · Chester, PA NPI 1144290875 Linwood Haith Surgery Physician · Chester, PA NPI 1720058308 Malur Balaji Vascular Surgery Physician · Chester, PA NPI 1750347894
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.