DR. ONA MAE REIKO SHIROYAMA (O.D.) – Optometrist, NPI 1932142841

DR. ONA MAE REIKO SHIROYAMA (O.D.) is a healthcare provider. based in Ventura, California. specializing in OPTOMETRY. They hold the professional credentials O.D.. They hold a License No. 6802T (CA). The NPI Number for DR. ONA MAE REIKO SHIROYAMA (O.D.) is 1932142841

Main info

Female
47 Years Of Experience
Accepts Medicare Assignment
Name
DR. ONA MAE REIKO SHIROYAMA (O.D.)
NPI
1932142841
Phone
(805) 650-9922
Address
1280 S VICTORIA AVE
Enumeration Date
14 June 2006
Last Update Date
11 January 2011

Doctor Profile

Medical School Name
ILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Secondary Phone
8056509922
Graduation Year
1979 (47 years ago)
PAC ID
3274686134
Group Practice PAC ID
8820045636
Professional Enrollment ID
I20090725000121
Address ID
CA930036550VE1280XVICT301
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

3,909 OPTOMETRY in CA

Loading map...

Provider Addresses for DR. ONA MAE REIKO SHIROYAMA (O.D.)

  • South Victoria Avenue, Ventura, Ventura County, California, 93009, United States

    SUITE 100

    VENTURA, CA 930036555

    Phone: (805) 650-9922

    Fax: (805) 650-6656

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $24.

Total Amount is formed as General ($24) + Research ($0) + Ownership ($0) = $24.

Last reported payment date: 2023-03-22 • Largest payer in this snapshot: Bausch & Lomb Americas Inc. ($24).

Total Amount

$24

General + Research + Ownership

Payments

1

Total payment records

General Amount

$24

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-03-22

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: 2009-07-25

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
I20090725000121IOptometryCATBD

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 system7171$0
View full utilization report →

Insurance plans in this area (ZIP 93003)

Loading plans...

Provider's Procedures

DR. ONA MAE REIKO SHIROYAMA (O.D.) performs procedures in OPTOMETRY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
OPTOMETRYCA92083Measurement of field of vision during daylight conditions1412

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: 8820045636View full group profile
NameSpecialtyState
O P T O M E T R YCA
O P T O M E T R YCA
O P T O M E T R YCA
O P T O M E T R YCA
O P T O M E T R YCA

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What NPI should I save for DR. ONA MAE REIKO SHIROYAMA (O.D.)?
Save NPI 1932142841 if you need a stable reference for DR. ONA MAE REIKO SHIROYAMA (O.D.).
Is DR. ONA MAE REIKO SHIROYAMA (O.D.) active in the national directory?
DR. ONA MAE REIKO SHIROYAMA (O.D.)'s public NPI profile is in an active state.
What kind of provider is DR. ONA MAE REIKO SHIROYAMA (O.D.)?
The page reflects Optometrist for DR. ONA MAE REIKO SHIROYAMA (O.D.). Clinical services aligned with this taxonomy classification.
What location shows for DR. ONA MAE REIKO SHIROYAMA (O.D.)?
We surface Ventura, California for DR. ONA MAE REIKO SHIROYAMA (O.D.) based on available NPPES addresses.
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

Similar Providers

East Ventura Animal Hospital, 10225, Telephone Road, Scandia Center, West Saticoy, Ventura, Ventura County, California, 93004, United States
NPI: 1962498030
4080, Loma Vista Road, Ventura, Ventura County, California, 93003, United States
NPI: 1740250166
265, Valley Vista Drive, Sterling Hills, Camarillo, Ventura County, California, 93010, United States
NPI: 1700853462
South Victoria Avenue, Ventura, Ventura County, California, 93009, United States
NPI: 1649249319
South Victoria Avenue, Ventura, Ventura County, California, 93009, United States
NPI: 1619935103
3085, Loma Vista Road, Ventura, Ventura County, California, 93003, United States
NPI: 1992746382
3085 Loma Vista Rd
NPI: 1689619512
3088, Telegraph Road, Ventura, Ventura County, California, 93003, United States
NPI: 1932145596