Organizations with 5 or more NPIs

28,446 legal names hold 5 or more active organization NPIs, largest first. Showing 26,101 to 26,200.

CMS NPPES registry, monthly file of Aug 9, 2026 · names grouped after punctuation and "LLC" are removed · method

Organization	NPIs	Cities	States
Odyssey House Corp	5	1	1
Odyssey Wellness INC	5	4	4
Ogdensburg City School District	5	1	1
Oh Independent Medical Group LLC	5	4	1
Ohana Counseling Services	5	5	5
Ohio Foot & Ankle, INC	5	4	1
Ohio Hospital For Psychiatry, LLC	5	1	1
Ohio Valley Eye Institute	5	4	2
Ohiohealth Sleep Services LLC	5	5	1
Okaloosa Hospital INC	5	2	1
Okanogan Douglas District Hospital #1	5	1	1
Oklahoma Cardiovascular Associates, PC	5	1	1
Old Town Pharmacy INC	5	3	3
Olive Branch Counseling Services LLC	5	5	5
Olson Eye Care LLC	5	4	2
Olympia Neuromuscular Massage Therapy INC Ps	5	1	1
Olympic Peninsula Kidney Center	5	4	1
Om Healthcare LLC	5	5	5
Om Vision Services INC,	5	5	1
Omega Emergency Physicians, LLC	5	4	2
Omega Health Services	5	5	5
Omega Pharmacy LLC	5	4	4
Omni Family Of Services North Carolina INC	5	3	1
Omnicare	5	4	3
On Point Acupuncture LLC	5	5	5
On Site Imaging INC	5	3	3
On-Site Podiatry, INC	5	4	1
On Time Medical Transportation LLC	5	5	5
On Time Transit LLC	5	5	4
Oncology Associates, PC	5	5	5
Oncology-Hematology Consultants PA	5	4	2
Oncology Specialties PC	5	2	1
Onduo Professionals, PC	5	1	1
One Heart Health And Wellness	5	1	1
One Home Medical Equipment Nc, LLC	5	5	1
One Home Medical Equipment Va, LLC	5	5	1
One Life Chiropractic	5	5	5
One Love Home Care LLC	5	5	4
One Medical Seniors Group, INC	5	2	1
One Mental Health LLC	5	5	2
One Oak Medical Group, LLC	5	5	1
One Stop Medical LLC	5	4	3
One Stop Multi-Specialty Medical Group & Therapy, INC	5	5	1
Oneota Riverview Care Facility	5	1	1
Onsight, INC	5	1	1
Onsight Health Care LLC	5	2	1
Ontario Pharmacy INC	5	3	3
Ontrivex LLC	5	1	1
Opal Royal Home Care INC	5	3	3
Opelousas General Health System	5	1	1
Open Arms Home Health Care	5	5	5
Open Options, INC	5	4	3
Open System Mri LLC	5	4	1
Open Water Medical, PA	5	5	1
Ophthalmology Consultants Of Fort Wayne PC	5	1	1
Opko Lab, LLC	5	4	4
Opportunity Emergency Physicians, LLC	5	3	2
Optical Connection INC	5	4	1
Optical Illusions INC	5	5	4
Optical Solutions	5	4	4
Optimal Health Center	5	5	4
Optimal Healthcare	5	5	5
Optimum Behavioral Health	5	3	3
Optimum Health Systems INC	5	1	1
Optimum Healthcare	5	4	4
Optimum Home Health Services LLC	5	5	5
Optimum Residential Services LTD	5	1	1
Optimum Staffing Services LLC	5	5	1
Option One Home Medical Equipment, INC	5	5	1
Options For Independence	5	2	2
Options Unlimited	5	4	4
Optometric Providers Of New Hampshire, PLLC	5	5	2
Optum Infusion Services 550, LLC	5	4	4
Optum Medical Group Rhodes P C	5	1	1
Oral And Maxillofacial Surgeons PC	5	2	2
Oral And Maxillofacial Surgical Associates PA	5	5	3
Oral & Facial Surgery Center	5	4	4
Oral & Maxillofacial Surgery Specialists, PA	5	5	1
Oral Surgery Center, PC	5	4	3
Oral Surgery Partners PC	5	5	2
Oral Surgical Institute, PC	5	4	2
Orange County Asian And Pacific Islander Community Alliance, INC	5	1	1
Orange Psychiatric Medical Group, INC	5	4	1
Oregon Health Sciences University Department Of Ophthalmology	5	4	2
Origin Healthcare PC	5	4	3
Orlando Family Medical INC	5	2	1
Orlando Health Central, INC	5	2	1
Orlando Regional Healthcare	5	1	1
Orthocincy	5	4	2
Orthodontic Care Specialists, PLLC	5	5	1
Orthodontic Centers Of Az	5	4	1
Orthodontic Experts Of Wisconsin, LLC	5	5	1
Orthopaedic And Sports Medicine Center LLC	5	3	1
Orthopaedic And Sports Medicine Center-Norman, PC	5	5	1
Orthopaedic Associates USA, PA	5	3	1
Orthopaedic Centers Of Wisconsin S C	5	3	1
Orthopaedic Clinic Of Daytona Beach PA	5	3	1
Orthopaedic Institute Of Central Jersey	5	5	1
Orthopaedic Specialty Group	5	4	2
Orthopaedic Surgery Associates, PA	5	3	2

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov).