1. Home
  2. Directory
  3. Tennessee
  4. Kingsport
  5. Optometrist
  6. NPI Profile

DR. WILLIAM PAUL MCMILLIN O.D.
NPI 1427288372
Optometrist in Kingsport, TN

Active since July 24, 2009PECOS Enrolled
4617 FORT HENRY DR, KINGSPORT, TN 37663(423) 239-5491(423) 239-4860 Get Directions Write a Review

NPPES record last updated: May 4, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. William Paul Mcmillin O.d. NPPES

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

DR. WILLIAM PAUL MCMILLIN O.D. (NPI 1427288372) is an individual optometrist in Kingsport, Tennessee, licensed in Tennessee (2893) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS and is a graduate of University Alabama Birmingham - School Of Optometry (2009).

NPPES Registry Identity

NPI1427288372
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. WILLIAM PAUL MCMILLINCredential: O.D.
Location Address4617 FORT HENRY DRKingsport, TN 37663-2616
Mailing Address4617 Fort Henry DrKingsport, TN 37663-2616 · (423) 239-5491 · Fax (423) 239-4860
Phone(423) 239-5491
Fax(423) 239-4860
Sole ProprietorYes
Medical School CMSUniversity Alabama Birmingham - School Of OptometryGraduated 2009
Enumeration DateJuly 24, 2009
Last NPPES UpdateMay 4, 2010
✔ NPI 1427288372 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 TN · 2893
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.
4617 FORT HENRY DR, Kingsport, TN 37663
Open in Google Maps ↗

Other Identifiers 1

Medicare PIN1031415901TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Paul Mcmillin O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7416083621
PECOS Enrollment IDI20100326000771
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.

Medicare Billing Reassignment

Medicare enrollment records show William Mcmillin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mac2, PLLC
Same address
Durable Medical Equipment & Medical Supplies
4617 FORT HENRY DR
Kingsport, TN 37663
  • Reassigned Medicare billing, Tennessee enrollment
  • 4 clinicians in this Medicare group
NPI 1457522237 (423) 239-5491

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

Areas of Expertise CMS Part B claims 8

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 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.
298 services293 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.
92 services91 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
67 services56 patients
Removal of cataract with insertion of prosthetic lens 66984
This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.
36 services19 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.
31 services29 patients
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.
26 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37663 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
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 3

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

DR. BRENNA JEFFRIES OD
Optometrist
4617 FORT HENRY DR
KINGSPORT, TN 37663
Sullivan County (423) 239-5491
MAC2, PLLC
Durable Medical Equipment & Medical Supplies
4617 FORT HENRY DR
KINGSPORT, TN 37663
Sullivan County (423) 239-5491
WILLIAM C MCMILLIN OD
Optometrist
4617 FORT HENRY DR
KINGSPORT, TN 37663
Sullivan County (423) 239-5491

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 Mcmillin's NPI number?

The NPI number for William Mcmillin is 1427288372. It was assigned to this individual provider in the NPPES registry on July 24, 2009.

Where is William Mcmillin located?

William Mcmillin practices at 4617 Fort Henry Dr, Kingsport, TN 37663. The listed phone number is (423) 239-5491.

What is William Mcmillin's specialty?

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

Is William Mcmillin enrolled in Medicare?

Yes. William Mcmillin is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Mcmillin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Mcmillin reassigns Medicare benefits to Mac2, PLLC (Kingsport, TN). The 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 William Mcmillin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Mcmillin accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and BlueCross BlueShield of Tennessee and 9 other insurers list William Mcmillin 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 Mcmillin was last updated on May 4, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.