2026 NPPES data Optometrist NPI 1295913770 O.D.
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Ayaka Sato, O.D.

Optometrist in Gardena, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 60,463 in Optometrist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
448
Medicare Part D claims · 151 beneficiaries · Optometrist avg: 257
Generic prescribing
34%
generic claims · 66% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
95.1/100
▲ 12 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ayaka Sato, O.D. reported a CMS MIPS final score of 95.1/100 — above the 83.1 national average — and filed 448 Medicare Part D claims in 2023.

95.1/100
MIPS score · +12 vs avg
448
Part D claims, 2023
34%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Ayaka Sato, O.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

95 Top 21% higher than 79% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Ayaka Sato, O.D. sits

This provider among optometrist peers

Across the 6,527 optometrist providers who report both Medicare Part D prescribing and a MIPS quality score, Ayaka Sato, O.D. writes more Part D claims than 58% of them and scores higher on MIPS quality than 77% — placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.949.974.899.8Part D claim volume — percentile in specialtyMIPS quality — percentilePart D claim volume — percentile in specialty: 95 · MIPS quality — percentile: 47Part D claim volume — percentile in specialty: 85 · MIPS quality — percentile: 55Part D claim volume — percentile in specialty: 57 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 50 · MIPS quality — percentile: 12Part D claim volume — percentile in specialty: 67 · MIPS quality — percentile: 83Part D claim volume — percentile in specialty: 20 · MIPS quality — percentile: 65Part D claim volume — percentile in specialty: 77 · MIPS quality — percentile: 52Part D claim volume — percentile in specialty: 73 · MIPS quality — percentile: 70Part D claim volume — percentile in specialty: 17 · MIPS quality — percentile: 50Part D claim volume — percentile in specialty: 92 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 85 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 97 · MIPS quality — percentile: 17Part D claim volume — percentile in specialty: 23 · MIPS quality — percentile: 57Part D claim volume — percentile in specialty: 65 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 37 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 93 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 83 · MIPS quality — percentile: 95Part D claim volume — percentile in specialty: 13 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 32 · MIPS quality — percentile: 67Part D claim volume — percentile in specialty: 88 · MIPS quality — percentile: 15Part D claim volume — percentile in specialty: 40 · MIPS quality — percentile: 33Part D claim volume — percentile in specialty: 63 · MIPS quality — percentile: 85Part D claim volume — percentile in specialty: 12 · MIPS quality — percentile: 95Part D claim volume — percentile in specialty: 62 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 42 · MIPS quality — percentile: 37Part D claim volume — percentile in specialty: 43 · MIPS quality — percentile: 48Part D claim volume — percentile in specialty: 78 · MIPS quality — percentile: 82Part D claim volume — percentile in specialty: 60 · MIPS quality — percentile: 62Part D claim volume — percentile in specialty: 7 · MIPS quality — percentile: 7Part D claim volume — percentile in specialty: 8 · MIPS quality — percentile: 35Part D claim volume — percentile in specialty: 10 · MIPS quality — percentile: 73Part D claim volume — percentile in specialty: 33 · MIPS quality — percentile: 95Part D claim volume — percentile in specialty: 5 · MIPS quality — percentile: 10Part D claim volume — percentile in specialty: 58 · MIPS quality — percentile: 63Part D claim volume — percentile in specialty: 47 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 100 · MIPS quality — percentile: 93Part D claim volume — percentile in specialty: 53 · MIPS quality — percentile: 30Part D claim volume — percentile in specialty: 90 · MIPS quality — percentile: 72Part D claim volume — percentile in specialty: 2 · MIPS quality — percentile: 8Part D claim volume — percentile in specialty: 68 · MIPS quality — percentile: 32Part D claim volume — percentile in specialty: 15 · MIPS quality — percentile: 38Part D claim volume — percentile in specialty: 28 · MIPS quality — percentile: 60Part D claim volume — percentile in specialty: 48 · MIPS quality — percentile: 42Part D claim volume — percentile in specialty: 43 · MIPS quality — percentile: 53Part D claim volume — percentile in specialty: 33 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 27 · MIPS quality — percentile: 58Part D claim volume — percentile in specialty: 98 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 25 · MIPS quality — percentile: 77Part D claim volume — percentile in specialty: 30 · MIPS quality — percentile: 40Part D claim volume — percentile in specialty: 82 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 0 · MIPS quality — percentile: 13Part D claim volume — percentile in specialty: 22 · MIPS quality — percentile: 43Part D claim volume — percentile in specialty: 18 · MIPS quality — percentile: 68Part D claim volume — percentile in specialty: 55 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 38 · MIPS quality — percentile: 87Part D claim volume — percentile in specialty: 75 · MIPS quality — percentile: 5Part D claim volume — percentile in specialty: 80 · MIPS quality — percentile: 95Part D claim volume — percentile in specialty: 70 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 72 · MIPS quality — percentile: 78Part D claim volume — percentile in specialty: 3 · MIPS quality — percentile: 45Ayaka Sato, O.D. — Part D claim volume — percentile in specialty: 58 · MIPS quality — percentile: 77
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one optometrist peer from a representative sample of 60; the gold marker is Ayaka Sato, O.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Ayaka Sato, O.D.?

High performer (top quartile)

NPI registry status

Active

Issued 02/06/2008

NPI 1295913770

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

448 74% vs specialty avg

2023 prescription claims

Specialty avg: 257

MIPS final score

95.1/100 12 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in California

How Optometrist compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician — 17.3%Behavior Technician17.3%Marriage & Family Therapist — 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Pharmacist — 3.5%Pharmacist3.5%Clinical Social Worker — 3.1%Clinical Social Worker3.1%Optometrist — 0.9%Optometrist0.9%
Largest specialties in California (% of in-state providers)

Medicare quality performance — MIPS

Ayaka Sato, O.D.'s 2023 MIPS final score plotted against the Optometrist national average

High performer (top quartile)
MIPS Final Score
95.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Optometrist) — 95.1/100 vs national avg 83.1

0%100%National avg83%95.1%
MIPS final score (Optometrist) — 95.1/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Ayaka Sato, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 1141 W REDONDO BEACH BLVD, Gardena, CA, 90247, with a listed phone of (310) 767-7814. NPI 1295913770 was issued on 02/06/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Sato most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 448 prescription claims written by this provider, covering 151 Medicare beneficiaries and totaling roughly $229K in drug spend, split 66% brand-name and 34% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.1/100 for the 2023 performance year (Quality 90.1), compared with the national average of 83.1.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1141 W REDONDO BEACH BLVD
Gardena, CA 90247

Provider Details

NPI 1295913770
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 02/06/2008

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

95.0685
Final Score
Avg: 83.1
90.137
Quality

Reporting: Group practice

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to Ayaka Sato, O.D.. To verify Ayaka Sato, O.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

Ayaka Sato, O.D. — brand share 66.0%
Optometrist average

66% brand-name claims vs 34% generic, on 448 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

448
Total Claims
$229K
Total Drug Cost
151
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
656
Total Day Supply
18,661
Brand vs Generic
66% brand / 34% generic
Brand Drug Cost
$217K
Generic Drug Cost
$12K
Antibiotic Claims
21

Patient Demographics

Average Patient Age
76.6 years
Avg HCC Risk Score
1.22
Gender Split
78% female / 22% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Ayaka Sato, O.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Restasis
Cyclosporine
120
Loteprednol Etabonate
39
Cyclosporine
27
Timolol Maleate
26
Latanoprost
25
Lotemax Sm
Loteprednol Etabonate
24
Xiidra
Lifitegrast
19
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
13
Tyrvaya
Varenicline Tartrate
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Optometrist Overview

How Ayaka Sato, O.D. fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

Ayaka Sato, O.D.'s 448 claims are above the specialty average of 257.

Nearby Optometrist Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Sato.

Compare Optometrist nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Optometrist peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Ayaka Sato, O.D.'s specialty?
Ayaka Sato, O.D. specializes in Optometrist and practices in Gardena, California. Credentials: O.D..
How much does Ayaka Sato, O.D. prescribe under Medicare Part D?
In 2023, Ayaka Sato, O.D. wrote 448 Medicare Part D claims totaling $229K in drug costs for 151 beneficiaries.
What is Ayaka Sato, O.D.'s Medicare quality score?
Ayaka Sato, O.D. has a CMS MIPS Final Score of 95.1/100 (Quality: 90.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ayaka Sato, O.D. located?
Ayaka Sato, O.D. is located at 1141 W REDONDO BEACH BLVD, Gardena, CA, 90247. Phone: (310) 767-7814.
What is Ayaka Sato, O.D.'s NPI number?
Ayaka Sato, O.D.'s National Provider Identifier (NPI) is 1295913770, issued on 02/06/2008.
Does Ayaka Sato, O.D. prescribe more brand-name or generic drugs?
Ayaka Sato, O.D.'s prescribing is 66% brand-name and 34% generic drugs by claim count, with $217K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does Ayaka Sato, O.D. prescribe most often?
Based on 2023 Medicare Part D data, Ayaka Sato, O.D.'s most frequently prescribed drugs include Restasis, Loteprednol Etabonate, Cyclosporine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ayaka Sato, O.D. accept Medicare?
Ayaka Sato, O.D. appears in CMS Medicare data with 448 Part D claims and 151 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ayaka Sato, O.D.'s credentials?
Ayaka Sato, O.D.'s NPI is 1295913770 with credentials O.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.