2026 NPPES data Optometrist NPI 1922046994 O.D.
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Glen Ozawa, O.D.

Optometrist in Tracy, 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
73
Medicare Part D claims · 16 beneficiaries · Optometrist avg: 257
Generic prescribing
0%
generic claims · 86% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
91/100
▲ 8 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Glen Ozawa, O.D. reported a CMS MIPS final score of 91/100 — above the 83.1 national average — and filed 73 Medicare Part D claims in 2023.

91/100
MIPS score · +8 vs avg
73
Part D claims, 2023
0%
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.

Glen Ozawa, 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

91 Top 37% higher than 63% 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 Glen Ozawa, 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, Glen Ozawa, O.D. writes more Part D claims than 13% of them and scores higher on MIPS quality than 66% — placing this provider in the lower-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: 57Part D claim volume — percentile in specialty: 57 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 52 · MIPS quality — percentile: 12Part D claim volume — percentile in specialty: 67 · MIPS quality — percentile: 83Part D claim volume — percentile in specialty: 22 · MIPS quality — percentile: 67Part D claim volume — percentile in specialty: 77 · MIPS quality — percentile: 52Part D claim volume — percentile in specialty: 73 · MIPS quality — percentile: 72Part D claim volume — percentile in specialty: 18 · 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: 25 · MIPS quality — percentile: 58Part D claim volume — percentile in specialty: 65 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 38 · 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: 15 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 33 · MIPS quality — percentile: 68Part D claim volume — percentile in specialty: 88 · MIPS quality — percentile: 15Part D claim volume — percentile in specialty: 42 · MIPS quality — percentile: 33Part D claim volume — percentile in specialty: 63 · MIPS quality — percentile: 85Part D claim volume — percentile in specialty: 13 · MIPS quality — percentile: 95Part D claim volume — percentile in specialty: 62 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 43 · MIPS quality — percentile: 37Part D claim volume — percentile in specialty: 45 · 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: 63Part D claim volume — percentile in specialty: 8 · MIPS quality — percentile: 7Part D claim volume — percentile in specialty: 10 · MIPS quality — percentile: 35Part D claim volume — percentile in specialty: 12 · MIPS quality — percentile: 75Part D claim volume — percentile in specialty: 35 · MIPS quality — percentile: 95Part D claim volume — percentile in specialty: 7 · MIPS quality — percentile: 10Part D claim volume — percentile in specialty: 58 · MIPS quality — percentile: 65Part D claim volume — percentile in specialty: 48 · 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: 73Part 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: 17 · MIPS quality — percentile: 38Part D claim volume — percentile in specialty: 30 · MIPS quality — percentile: 62Part D claim volume — percentile in specialty: 50 · MIPS quality — percentile: 42Part D claim volume — percentile in specialty: 45 · MIPS quality — percentile: 53Part D claim volume — percentile in specialty: 35 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 28 · MIPS quality — percentile: 60Part D claim volume — percentile in specialty: 98 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 27 · MIPS quality — percentile: 77Part D claim volume — percentile in specialty: 32 · 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: 23 · MIPS quality — percentile: 43Part D claim volume — percentile in specialty: 20 · MIPS quality — percentile: 70Part D claim volume — percentile in specialty: 55 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 40 · 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: 45Glen Ozawa, O.D. — Part D claim volume — percentile in specialty: 13 · MIPS quality — percentile: 66
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 Glen Ozawa, 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 Glen Ozawa, O.D.?

High performer (top quartile)

NPI registry status

Active

Issued 06/03/2006

NPI 1922046994

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

73 72% vs specialty avg

2023 prescription claims

Specialty avg: 257

MIPS final score

91/100 7.9 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

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

High performer (top quartile)
MIPS Final Score
91/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Optometrist) — 91/100 vs national avg 83.1

0%100%National avg83%91%
MIPS final score (Optometrist) — 91/100 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).

Glen Ozawa, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 4598 S TRACY BLVD, Tracy, CA, 95377, with a listed phone of (209) 835-1181. NPI 1922046994 was issued on 06/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Ozawa 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 73 prescription claims written by this provider, covering 16 Medicare beneficiaries and totaling roughly $1K in drug spend, split 86% brand-name and 0% 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 91/100 for the 2023 performance year (Quality 82.1, Cost 64.1), 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

4598 S TRACY BLVD
Tracy, CA 95377

Provider Details

NPI 1922046994
Specialty Optometrist
Credentials O.D.
Gender Male
NPI Issued 06/03/2006

CMS Quality Score (MIPS)

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

91.0409
Final Score
Avg: 83.1
82.1321
Quality
64.1093
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Glen Ozawa, O.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Alameda Health System
Oakland, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 Glen Ozawa, O.D.. To verify Glen Ozawa, 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

Glen Ozawa, O.D. — brand share 86.0%
Optometrist average

86% brand-name claims vs 0% generic, on 73 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.

73
Total Claims
$1K
Total Drug Cost
16
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
110
Total Day Supply
3,118
Brand vs Generic
86% brand / 0% generic
Brand Drug Cost
$1K

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.00

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
73

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

Optometrist Overview

How Glen Ozawa, O.D. fits within the Optometrist landscape nationally.

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

Glen Ozawa, O.D.'s 73 claims are below 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 Ozawa.

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 Glen Ozawa, O.D.'s specialty?
Glen Ozawa, O.D. specializes in Optometrist and practices in Tracy, California. Credentials: O.D..
How much does Glen Ozawa, O.D. prescribe under Medicare Part D?
In 2023, Glen Ozawa, O.D. wrote 73 Medicare Part D claims totaling $1K in drug costs for 16 beneficiaries.
What is Glen Ozawa, O.D.'s Medicare quality score?
Glen Ozawa, O.D. has a CMS MIPS Final Score of 91/100 (Quality: 82.1, Cost: 64.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Glen Ozawa, O.D. located?
Glen Ozawa, O.D. is located at 4598 S TRACY BLVD, Tracy, CA, 95377. Phone: (209) 835-1181.
What is Glen Ozawa, O.D.'s NPI number?
Glen Ozawa, O.D.'s National Provider Identifier (NPI) is 1922046994, issued on 06/03/2006.
Does Glen Ozawa, O.D. prescribe more brand-name or generic drugs?
Glen Ozawa, O.D.'s prescribing is 86% brand-name and 0% generic drugs by claim count, with $1K 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 Glen Ozawa, O.D. prescribe most often?
Based on 2023 Medicare Part D data, Glen Ozawa, O.D.'s most frequently prescribed drugs include Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Glen Ozawa, O.D. accept Medicare?
Glen Ozawa, O.D. appears in CMS Medicare data with 73 Part D claims and 16 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Glen Ozawa, O.D.'s credentials?
Glen Ozawa, O.D.'s NPI is 1922046994 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.