Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

KAREN CHEN OD
NPI 1609794346
Optometrist in Sparta, NJ

Q: What is Karen Chen's NPI number?

The NPI number for Karen Chen is 1609794346. It was assigned to this individual provider in the NPPES registry on July 9, 2026.

Q: What is Karen Chen's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Karen Chen was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 09, 2026PECOS Enrolled

117 SPARTA AVE, SPARTA, NJ 07871(973) 729-9199 Get Directions Write a Review

NPPES record added: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

On this page

About Karen Chen Od NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KAREN CHEN OD (NPI 1609794346) is an individual optometrist in Sparta, New Jersey, licensed in New Jersey (27OA00744500) and active in the NPI registry since July 2026. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1609794346

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameKAREN CHENCredential: OD

Location Address117 SPARTA AVESparta, NJ 07871-1773

Mailing Address117 Sparta AveSparta, NJ 07871-1773 · (973) 729-9199

Phone(973) 729-9199

Sole ProprietorNo

Enumeration DateJuly 9, 2026

NPPES CertifiedJuly 9, 2026

✔ NPI 1609794346 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in NJ · 27OA00744500

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

117 SPARTA AVE, Sparta, NJ 07871

Open in Google Maps ↗

Secondary Practice Locations 2

Location 1438 County Road 513 Ste 12Califon, NJ 07830-4187 · Phone (908) 832-9211

Location 2200 US Highway 206Branchville, NJ 07826-4234 · Phone (973) 948-7272

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karen Chen Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07871 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$144.86 typical visit price

range $63.84 – $190.92

Typical copayment $36.21 (range $15.96 – $47.73)

Most-billed visit code 99204

Established Patient

$79.09 typical visit price

range $20.97 – $155.92

Typical copayment $19.77 (range $5.24 – $38.98)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELENA MARTINEZ O.D

Optometrist

117 SPARTA AVE
SPARTA, NJ 07871

Sussex County (973) 726-0669

DR. ERNEST MICHAEL STAEHLE O.D.

Optometrist

117 SPARTA AVE
SPARTA, NJ 07871

Sussex County (215) 873-7826

NORTHWEST OPTOMETRY GROUP, P.A.

Optometrist

117 SPARTA AVE
SPARTA, NJ 07871

Sussex County (973) 729-9199

DR. JEFFREY F. CLAUSS O.D.

Optometrist

117 SPARTA AVE
SPARTA, NJ 07871

Sussex County (973) 729-9199

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Chen's NPI number?

The NPI number for Karen Chen is 1609794346. It was assigned to this individual provider in the NPPES registry on July 9, 2026.

Where is Karen Chen located?

Karen Chen practices at 117 Sparta Ave, Sparta, NJ 07871. The listed phone number is (973) 729-9199.

What is Karen Chen's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Karen Chen enrolled in Medicare?

Yes. Karen Chen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Karen Chen was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.