DR. THOMAS ALAN UNDERHILL (O.D.) – Optometrist, NPI 1477079598

DR. THOMAS ALAN UNDERHILL (O.D.) is a healthcare provider. based in Fort myers, Florida. specializing in OPTOMETRY. They hold the professional credentials O.D.. They hold a License No. OPC5456 (FL). The NPI Number for DR. THOMAS ALAN UNDERHILL (O.D.) is 1477079598

Main info

Male
10 Years Of Experience
Accepts Medicare Assignment
Name
DR. THOMAS ALAN UNDERHILL (O.D.)
NPI
1477079598
Phone
(239) 482-0355
Address
5995 S POINTE BLVD STE 111
Enumeration Date
21 August 2017
Last Update Date
21 July 2022

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2394820355
Graduation Year
2016 (10 years ago)
PAC ID
5597030353
Group Practice PAC ID
9234228388
Professional Enrollment ID
I20171004000476
Address ID
FL339071734FO1565XDRXX301
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience30
Completeness75
Years active:8State licenses:1Digital endpointsOther names

2,055 OPTOMETRY in FL

Provider Addresses for DR. THOMAS ALAN UNDERHILL (O.D.)

  • 5995 S POINTE BLVD STE 111

    FORT MYERS, FL 339193273

    Phone: (239) 482-0355

    Fax: (239) 482-8930

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 30 Open Payments records for all available years, with a total value of $2,185.

Total Amount is formed as General ($2,185) + Research ($0) + Ownership ($0) = $2,185.

Last reported payment date: 2024-11-25 • Largest payer in this snapshot: Bausch & Lomb Americas Inc. ($678).

Total Amount

$2,185

General + Research + Ownership

Payments

30

Total payment records

General Amount

$2,185

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-25

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2017-10-04

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20171004000476IOptometryFLTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
92014Established patient complete exam of visual system141124$0
92012Established patient problem focused exam of visual system12376$0
92250Photography of the retina10885$0
92134Imaging of retina8062$0
92273Measurement of retinal and optic nerve function6244$0
View full utilization report →

Insurance plans in this area (ZIP 33919)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9234228388View full group profile
NameSpecialtyState
O P T O M E T R YFL

Reviews

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Frequently asked questions

How do payers reference DR. THOMAS ALAN UNDERHILL (O.D.)?
For DR. THOMAS ALAN UNDERHILL (O.D.), use NPI 1477079598 as the unique 10-digit identifier.
Is DR. THOMAS ALAN UNDERHILL (O.D.) still an active registrant?
DR. THOMAS ALAN UNDERHILL (O.D.) carries an active NPI according to the public dataset.
What clinical focus is listed for DR. THOMAS ALAN UNDERHILL (O.D.)?
At a glance, DR. THOMAS ALAN UNDERHILL (O.D.) is tied to Optometrist. Clinical services aligned with this taxonomy classification.
What locale is associated with DR. THOMAS ALAN UNDERHILL (O.D.)?
Directory geography for DR. THOMAS ALAN UNDERHILL (O.D.) centers on Fort Myers, Florida.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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