Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Darryl Marsden Greenwood, O.D.
Optometrist in Wyomissing, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851477103
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Registry record
Entity type Individual (Type 1)
Name Mr. Darryl Marsden Greenwood
Credential O.D.
Sex Male
Practice address 1901 Ridgewood Ave, Wyomissing, PA, 19610
Phone (610) 373-2300
Fax (610) 373-7014
Enumeration date Oct 30, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 396393 | Other | PA | NVA/CBC PROVIDER CODE |
| GR552240 | Other | PA | PBS PROVIDER CODE |
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.
Frequently asked questions
Is NPI 1851477103 active?
Yes, as of the latest NPPES snapshot, NPI 1851477103 is active (record last updated 2007-07-08).
How do I verify Darryl Greenwood's NPI record?
Cross-check NPI 1851477103 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → George Linsey O.D. P.C. Optometrist · Wyomissing, PA NPI 1184700445 Sandra Beer-Edelman General Practice Dentistry · Wyomissing, PA NPI 1922174200 Steven Diak General Practice Dentistry · Wyomissing, PA NPI 1134287113 Mervet Hachem Optometrist · Wyomissing, PA NPI 1295999423 Rachel Simpson Ophthalmology Physician · Wyomissing, PA NPI 1598318800 Steven Diak, Dmd, PC General Practice Dentistry · Wyomissing, PA NPI 1578185690
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.