Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Robert Anthony Oldham, PAC
Physician Assistant in Antlers, OK · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578554101
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Registry record
Entity type Individual (Type 1)
Name Robert Anthony Oldham
Credential PAC
Sex Male
Practice address 603 Ne 2nd St, Antlers, OK, 74523
Phone (580) 298-3351
Fax (580) 298-6137
Enumeration date Nov 2, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 878 (OK) Primary
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
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.
What specialty is Robert Oldham?
Robert Oldham is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Beth Leader General Practice Physician · Antlers, OK NPI 1891786737 Rowland Flatt Clinic Medical Specialty Clinic/Center · Antlers, OK NPI 1013908441 Gerald Flatt Family Medicine Physician · Antlers, OK NPI 1700877040 Rowland-Ellis-Flatt Clinic Clinical Medical Laboratory · Antlers, OK NPI 1104097443 Rowland Flatt Clinic Rural Health Clinic/Center · Antlers, OK NPI 1295037000 Stormi Mcknight Adult Health Nurse Practitioner · Antlers, OK NPI 1386006120 Olivia Smith Family Nurse Practitioner · Antlers, OK NPI 1073489217
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.