Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Howard Irvin Woolf, O.D.
Optometrist in Pasadena, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1659466589
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Registry record
Entity type Individual (Type 1)
Name Howard Irvin Woolf
Credential O.D.
Sex Male
Practice address 2446 Mountain Rd, Pasadena, MD, 21122
Phone (410) 255-8056
Fax (410) 360-8689
Enumeration date Oct 4, 2006
Last updated in NPPES May 29, 2013
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 |
|---|---|---|---|
| 800368800 | Medicaid | MD | - |
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 1659466589 active?
Yes, as of the latest NPPES snapshot, NPI 1659466589 is active (record last updated 2013-05-29).
How do I verify Howard Woolf's NPI record?
Cross-check NPI 1659466589 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 → Salvador Papa MD Pediatrics Pediatrics Physician · Pasadena, CA NPI 1588763205 Brian Woolf Optometrist · Pasadena, MD NPI 1760577605 Michelle Levy Optometrist · Pasadena, MD NPI 1235224080 Salvador Papa Pediatrics Physician · Pasadena, MD NPI 1174695506 Woolf, LLC Optometrist · Pasadena, MD NPI 1235339524
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-29.