JACKSONVILLE EYE CARE
NPI 1194074476
Optometrist in Phoenix, MD

Active since September 02, 2012CLIA 21D2322430 · Waiver
3332 PAPER MILL RD, PHOENIX, MD 21131(410) 628-1510 Get Directions Write a Review

NPPES record last updated: November 14, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Jacksonville Eye Care NPPES

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

JACKSONVILLE EYE CARE (NPI 1194074476) is a healthcare organization registered as an optometrist in Phoenix, Maryland and active in the NPI registry since September 2012. The organization holds a CLIA Waiver certificate valid through April 21, 2027 and lists Michael F Diffendall, Owner, as its authorized official.

NPPES Registry Identity

NPI1194074476
Entity TypeOrganization
Primary Taxonomy152W00000X
Legal Business NameM. F. DIFFENDALL OD PA
Location Address3332 PAPER MILL RDPhoenix, MD 21131-1419
Mailing Address3332 Paper Mill RdPhoenix, MD 21131-1419 · (410) 628-1510
Organization SubpartNo
Authorized OfficialMichael F DiffendallOwner · (410) 628-1510
Enumeration DateSeptember 2, 2012
Last NPPES UpdateNovember 14, 2013
✔ NPI 1194074476 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 MD · TA1372
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.
3332 PAPER MILL RD, Phoenix, MD 21131

Other Names 1

Doing Business AsJacksonville Eye Care

Other Identifiers 2

Medicare PIN269669MD
Medicare UPINU60706

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jacksonville Eye Care is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Jacksonville Eye Care, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Optometry
NPI 1184667057
3332 PAPER MILL RD
Phoenix, MD 21131
(410) 628-1510
✔ PECOS✔ Accepts MedicareSame address
Optometry
NPI 1558319707
2002 MEDICAL PKWY SUITE 320
Annapolis, MD 21401
(410) 571-8733
✔ PECOS✔ Accepts Medicare37 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 21D2322430

Jacksonville Eye Care · Phoenix, MD
Active · expires Apr 21, 2027
CLIA Number21D2322430
Laboratory TypePhysician Office
Certificate Effective DateApril 22, 2025
Certificate Expiration DateApril 21, 2027
Laboratory DirectorJohanna Letts
Laboratory Phone(410) 628-1510
Laboratory LocationJacksonville Eye Care3332 Paper Mill Rd, Phoenix, MD 21131
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 M. F. Diffendall Od PA's NPI number?

The NPI number for M. F. Diffendall Od PA is 1194074476. It was assigned to this organization in the NPPES registry on September 2, 2012. The provider is doing business as Jacksonville Eye Care.

Where is M. F. Diffendall Od PA located?

M. F. Diffendall Od PA is located at 3332 Paper Mill Rd, Phoenix, MD 21131. The listed phone number is (410) 628-1510.

What is M. F. Diffendall Od PA's specialty?

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

Is M. F. Diffendall Od PA enrolled in Medicare?

Yes. M. F. Diffendall Od PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through M. F. Diffendall Od PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Optometry, reassign their Medicare billing to M. F. Diffendall Od PA. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does M. F. Diffendall Od PA hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 21D2322430) is associated with this NPI, valid through April 21, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does M. F. Diffendall Od PA accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list M. F. Diffendall Od PA as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for M. F. Diffendall Od PA was last updated on November 14, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.