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DR. MARK HENRY HARDER OD
NPI 1093787459
Optometrist in Modesto, CA

Active since February 01, 2006PECOS Enrolled
501 E ORANGEBURG AVE STE B, MODESTO, CA 95350(209) 596-4360(209) 566-0685 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Mark Henry Harder Od NPPES

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

DR. MARK HENRY HARDER OD (NPI 1093787459) is an individual optometrist in Modesto, California, licensed in California (CA07481T) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1093787459
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. MARK HENRY HARDERCredential: OD
Location Address501 E ORANGEBURG AVE STE BModesto, CA 95350
Mailing Address501 E Orangeburg Ave Ste BModesto, CA 95350-5578 · (209) 596-4360 · Fax (209) 566-0685
Phone(209) 596-4360
Fax(209) 566-0685
Sole ProprietorYes
Enumeration DateFebruary 1, 2006
Last NPPES UpdateMarch 7, 2023
✔ NPI 1093787459 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 CA · CA07481T
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.
501 E ORANGEBURG AVE STE B, Modesto, CA 95350
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Other Identifiers 2

MedicaidSD0074810CA
Medicaid1093787459CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Henry Harder 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 95350 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
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

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

MARK H. HARDER OD
Optometrist
501 E ORANGEBURG AVE STE B
MODESTO, CA 95350
Stanislaus County (209) 596-4360

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 Mark Harder's NPI number?

The NPI number for Mark Harder is 1093787459. It was assigned to this individual provider in the NPPES registry on February 1, 2006.

Where is Mark Harder located?

Mark Harder practices at 501 E Orangeburg Ave Ste B, Modesto, CA 95350. The listed phone number is (209) 596-4360.

What is Mark Harder's specialty?

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

Is Mark Harder enrolled in Medicare?

Yes. Mark Harder is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Harder was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.