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Jason Szelog, MD

Q: What is the NPI number for Jason Szelog?

The National Provider Identifier (NPI) for Jason Szelog is 1366936882, a Type 1 (individual) record in the CMS NPPES registry.

Ophthalmology Physician in Portsmouth, NH · enumerated 2018 · practices at Eyesight Ophthalmic Services Pllc.

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

National Provider Identifier

1366936882

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Registry record

Entity type Individual (Type 1)

Name Jason Szelog

Credential MD

Sex Male

Practice address 155 Borthwick Ave Ste 200e, Portsmouth, NH, 03801

Phone (603) 436-1773

Fax (603) 427-0655

Enumeration date Jun 18, 2018

Last updated in NPPES Oct 17, 2024

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 275986 (MA) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 23619 (NH) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 291178 (MA) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 23619 (NH) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License MD26571 (ME) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD26571 (ME) Primary

174400000X Specialist Other Service Providers · License 23619 (NH) Secondary

174400000X Specialist Other Service Providers · License MD26571 (ME) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 275986 (MA) Secondary

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.

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Frequently asked questions

What is the NPI number for Jason Szelog?

The National Provider Identifier (NPI) for Jason Szelog is 1366936882, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jason Szelog practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-17.