Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

John Blaich Ryan, M.D.

Q: What is the NPI number for John Ryan?

The National Provider Identifier (NPI) for John Ryan is 1437103561, a Type 1 (individual) record in the CMS NPPES registry.

Surgery Physician in Auburn, NY · enumerated 2006.

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

National Provider Identifier

1437103561

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Registry record

Entity type Individual (Type 1)

Name John Blaich Ryan

Credential M.D.

Sex Male

Practice address Auburn, NY, 13021

Phone (315) 258-8282

Fax (315) 258-7386

Enumeration date May 22, 2006

Last updated in NPPES Mar 6, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 179142 (NY) Primary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 179142 (NY) 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
01412968	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does John Ryan practice?

The practice location on file with NPPES is in Auburn, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Ryan?

The National Provider Identifier (NPI) for John Ryan is 1437103561, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Bahgat Abdelaziz Surgical Physician Assistant · Auburn, NY NPI 1356394761 David Mizro Surgical Physician Assistant · Auburn, NY NPI 1205882016 James Alexander Obstetrics & Gynecology Physician · Auburn, NY NPI 1437162161 Contemporary Obstetrics & Gynecology Obstetrics & Gynecology Physician · Auburn, NY NPI 1942388988 John B. Ryan, M.D. PC. Surgery Physician · Auburn, NY NPI 1780874412 Danielle Lefebvre Women's Health Nurse Practitioner · Auburn, NY NPI 1114523727

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-06.