Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jonathan Alan Seidenberg, M.D.

Ophthalmology Physician in Havre De Grace, MD · enumerated 2005 · practices at Seidenberg Protzko Eye Associates.

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

National Provider Identifier

1790787927

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Registry record

Entity type Individual (Type 1)

Name Dr. Jonathan Alan Seidenberg

Credential M.D.

Sex Male

Practice address 2023 Pulaski Highway, Havre De Grace, MD, 21078

Phone (410) 939-6477

Fax (410) 939-6555

Enumeration date Jun 1, 2005

Last updated in NPPES Nov 11, 2020

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License D38724 (MD) 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
W2450003	Other	-	FEDERAL BLUESHIELD
544711900	Medicaid	MD	-
42492601	Other	MD	CAREFIRST BLUESHILED

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

Where does Jonathan Seidenberg practice?

The practice location on file with NPPES is in Havre De Grace, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jonathan Seidenberg?

The National Provider Identifier (NPI) for Jonathan Seidenberg is 1790787927, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Scott Smearman Optometrist · Havre De Grace, MD NPI 1083616205 Eugene Protzko Ophthalmology Physician · Havre De Grace, MD NPI 1588666713 David Reed Optometrist · Havre De Grace, MD NPI 1205838422 Seidenberg Protzko Eye Associates Ophthalmology Physician · Havre De Grace, MD NPI 1124065800

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-11.