DR. WILLIAM FRANCIS CALLAHAN O.D.
NPI 1568536357
Optometrist in Marshfield, MA

Active since November 20, 2006PECOS EnrolledAccepts Medicare Assignment
462 PLAIN ST, SUITE 104, MARSHFIELD, MA 02050(781) 837-9956(781) 837-9950 Get Directions Write a Review

NPPES record last updated: August 23, 2012. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William Francis Callahan O.d. NPPES

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

DR. WILLIAM FRANCIS CALLAHAN O.D. (NPI 1568536357) is an individual optometrist in Marshfield, Massachusetts, licensed in Massachusetts (3071) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of New England College Of Optometry (1983).

NPPES Registry Identity

NPI1568536357
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. WILLIAM FRANCIS CALLAHANCredential: O.D.
Location Address462 PLAIN ST, SUITE 104Marshfield, MA 02050-2731
Mailing Address462 Plain St, Suite 104Marshfield, MA 02050-2731 · (781) 837-9956 · Fax (781) 837-9950
Fax(781) 837-9950
Sole ProprietorYes
Medical School CMSNew England College Of OptometryGraduated 1983
Enumeration DateNovember 20, 2006
Last NPPES UpdateAugust 23, 2012
NPI 1568536357 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 MA · 3071
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.
462 PLAIN ST, Marshfield, MA 02050

Other Identifiers 2

Medicaid0352276MA
Medicare ID-Type Unspecified408158MA

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. William Francis Callahan O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880853688
PECOS Enrollment IDI20120314000702
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.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient problem focused exam of visual system 92012
This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.
196 services116 patients
Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
118 services98 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
92 services89 patients
Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
86 services82 patients
Photography of content of eyes 92285
Photography of the content of eyes, also known as ocular photography, captures detailed images of different parts of the eye. It helps identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. The process is non-invasive and painless.
48 services48 patients
New patient complete exam of visual system 92004
A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02050 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
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 5

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

Behavior Analyst
462 PLAIN ST
MARSHFIELD, MA 02050
Dentist (General Practice)
462 PLAIN ST, SUITE 103
MARSHFIELD, MA 02050
Dentist
462 PLAIN ST, SUITE 103
MARSHFIELD, MA 02050
Dentist (Orthodontics and Dentofacial Orthopedics)
462 PLAIN ST
MARSHFIELD, MA 02050
Dentist (General Practice)
462 PLAIN ST
MARSHFIELD, MA 02050

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 William Callahan's NPI number?

The NPI number for William Callahan is 1568536357. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Where is William Callahan located?

William Callahan practices at 462 Plain St Suite 104, Marshfield, MA 02050. The listed phone number is (781) 837-9956.

What is William Callahan's specialty?

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

Is William Callahan enrolled in Medicare?

Yes. William Callahan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Callahan 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 3 other insurers list William Callahan 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 William Callahan was last updated on August 23, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.