Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Karena K Strain, O.D.

Optometrist in York, PA · enumerated 2006 · practices at Clear Focus Eye Care PC.

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

National Provider Identifier

1962463018

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mrs. Karena K Strain

Credential O.D.

Sex Female

Practice address York, PA, 17404

Phone (717) 854-8130

Fax (717) 854-7352

Enumeration date Mar 29, 2006

Last updated in NPPES Jun 17, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OEG001714 (PA) Primary

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
2000271	Other	PA	KEYSTONE
3532648	Other	-	AETNA HMO
7115521	Other	-	AETNA NON HMO
240312	Other	-	HEALTH AMERICA
500034841	Other	PA	CAPTIAL BLUE CROSS

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Karena Strain?

The National Provider Identifier (NPI) for Karena Strain is 1962463018, a Type 1 (individual) record in the CMS NPPES registry.

Where does Karena Strain practice?

The practice location on file with NPPES is in York, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Clear Focus Eye Care PC Optometrist · York, PA NPI 1386982874

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-17.