DR. CLARE MASSON (O.D) – Optometrist, NPI 1831572858

DR. CLARE MASSON (O.D) is a healthcare provider. based in Tecumseh, Michigan. specializing in OPTOMETRY. They hold the professional credentials O.D. They hold a License No. 4901004889 (MI). The NPI Number for DR. CLARE MASSON (O.D) is 1831572858

Main info

Female
Sole Proprietor
11 Years Of Experience
Accepts Medicare Assignment
Name
DR. CLARE MASSON (O.D)
NPI
1831572858
Phone
(517) 423-2148
Address
138 W CHICAGO BLVD
Enumeration Date
8 July 2015
Last Update Date
14 October 2015

Doctor Profile

Medical School Name
OTHER
Secondary Phone
4042521702
Graduation Year
2015 (11 years ago)
PAC ID
3476863812
Group Practice PAC ID
8729074380
Professional Enrollment ID
I20200923003099
Address ID
GA303282561SA901XXRDXX301
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience34
Completeness75
Years active:10State licenses:1Digital endpointsOther names

1,204 OPTOMETRY in MI

Provider Addresses for DR. CLARE MASSON (O.D)

  • 138 W CHICAGO BLVD

    TECUMSEH, MI 492861553

    Phone: (517) 423-2148

    Fax: (517) 423-7120

    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 11 Open Payments records for all available years, with a total value of $526.

Total Amount is formed as General ($526) + Research ($0) + Ownership ($0) = $526.

Last reported payment date: 2024-12-31 • Largest payer in this snapshot: Glaukos Corporation ($205).

Total Amount

$526

General + Research + Ownership

Payments

11

Total payment records

General Amount

$526

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-31

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: 2020-09-23

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
I20200923003099IOptometryGATBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 49286)

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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: 8729074380View full group profile
NameSpecialtyState
O P T O M E T R YGA
-GA
O P T O M E T R YGA
O P T O M E T R YGA

Reviews

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Frequently asked questions

What NPI should I save for DR. CLARE MASSON (O.D)?
Save NPI 1831572858 if you need a stable reference for DR. CLARE MASSON (O.D).
Is DR. CLARE MASSON (O.D)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
What field does DR. CLARE MASSON (O.D) work in?
You can think of DR. CLARE MASSON (O.D) as practicing within Optometrist. Clinical services aligned with this taxonomy classification.
Does DR. CLARE MASSON (O.D) practice in Michigan?
You will see Tecumseh, Michigan on file for DR. CLARE MASSON (O.D) alongside any extra practice locations.
Is this NPI for an individual or an organization?
This listing corresponds to an Individual Provider.

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