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Dr. Ronald S Oser, M.D.

Ophthalmology Physician in Laurel, MD · enumerated 2005.

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

National Provider Identifier

1336148162

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Registry record

Entity type Individual (Type 1)
Name Dr. Ronald S Oser
Credential M.D.
Sex Male
Practice address 14201 Laurel Park Dr, Suite 208, Laurel, MD, 20707
Phone (301) 498-6616
Fax (301) 498-8030
Enumeration date Jul 14, 2005
Last updated in NPPES Jun 15, 2009

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License D15976 (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
118081900 Medicaid MD -
6699 Other MD BLUE SHIELD
20480001 Other DC BLUE SHIELD
675821002 Other - CIGNA
25432 Other - MAMSI GROUP

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 Ronald Oser?
The National Provider Identifier (NPI) for Ronald Oser is 1336148162, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ronald Oser practice?
The practice location on file with NPPES is in Laurel, MD. 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 2009-06-15.