Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Richard A Gruen MD PA

Ophthalmology Physician in Owings Mills, MD · enumerated 2007 · authorized official Richard Gruen, President.

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

National Provider Identifier

1093903551

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Registry record

Entity type Organization (Type 2)

Legal business name Richard A Gruen MD PA

Practice address 10 Crossroads Dr, Suite 104, Owings Mills, MD, 21117

Phone (410) 654-5700

Fax (410) 654-5399

Enumeration date Oct 10, 2007

Last updated in NPPES Oct 11, 2007

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License D0025907 (MD) Primary

Authorized official

Name Richard Gruen

Title President

Phone (410) 654-5700

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-10-11. Verify at npiregistry.cms.hhs.gov.

Where is Richard A Gruen MD PA located?

The practice location on file with NPPES is in Owings Mills, MD.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-11.