Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Louis J Riley Jr., MD

Nephrology Physician in Elmira, NY · enumerated 2007.

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

National Provider Identifier

1720139983

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Registry record

Entity type Individual (Type 1)

Name Louis J Riley Jr.

Credential MD

Sex Male

Practice address 200 Madison Ave Fl 3, Elmira, NY, 14901

Phone (607) 734-1581

Fax (607) 734-0972

Enumeration date Jan 15, 2007

Last updated in NPPES Feb 22, 2021

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 235016 (NY) 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
02647336	Medicaid	NY	-

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

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 Louis Riley?

Louis Riley is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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John Weston Family Medicine Physician · Elmira, NY NPI 1780630830 Keith Parker Internal Medicine Physician · Elmira, NY NPI 1114020237 Thomas Coss Physician Assistant · Elmira, NY NPI 1356440473 Raymond Wong Internal Medicine Physician · Elmira, NY NPI 1275945990 Shilpa Akula Internal Medicine Physician · Elmira, NY NPI 1578003430 Winifred Hinman Registered Nurse · Elmira, NY NPI 1326568098 Jerod Buell Family Medicine Physician · Elmira, NY NPI 1295230514 Melissa Brand Family Nurse Practitioner · Elmira, NY NPI 1669035325

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-22.