Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jonathan Conrad Romanyshyn, MD

Surgery Physician in Fresno, CA · enumerated 2008.

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

National Provider Identifier

1942450069

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Registry record

Entity type Individual (Type 1)

Name Dr. Jonathan Conrad Romanyshyn

Credential MD

Sex Male

Practice address 255 N Herwaldt Dr, Fresno, CA, 93701

Phone (866) 342-6012

Enumeration date Sep 25, 2008

Last updated in NPPES Jan 15, 2020

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A120296 (CA) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A120296 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Jonathan Romanyshyn practice?

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

What is the NPI number for Jonathan Romanyshyn?

The National Provider Identifier (NPI) for Jonathan Romanyshyn is 1942450069, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Simon Dougherty Surgical Physician Assistant · Fresno, CA NPI 1780660761 Marcelline Houde Surgical Physician Assistant · Fresno, CA NPI 1912962382 Armando Valenzuela Surgical Physician Assistant · Fresno, CA NPI 1386718864 Rodrigo De Zubiria Surgical Physician Assistant · Fresno, CA NPI 1194948406 Christopher Hillman Surgical Physician Assistant · Fresno, CA NPI 1104014562 Norio Takayama Plastic Surgery Physician · Fresno, CA NPI 1922277672 Brian Clague Neurological Surgery Physician · Fresno, CA NPI 1811293988 Maria Lin Physician Assistant · Fresno, CA NPI 1295018026

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-15.