2026 NPPES data Optometrist NPI 1518048214 OD
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LANA GRUIZENGA, OD

Optometrist in PAW PAW, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
20
Medicare Part D claims · Optometrist avg: 257
Generic prescribing
15%
generic claims · 85% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LANA GRUIZENGA, OD filed 20 Medicare Part D claims in 2023 as a Optometrist in PAW PAW, Michigan, prescribing 15% generic.

20
Part D claims, 2023
15%
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.

LANA GRUIZENGA, OD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

20 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about LANA GRUIZENGA, OD?

Quality data not reported

NPI registry status

Active

Issued 10/18/2006

NPI 1518048214

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

20 92% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Michigan

How Optometrist compares to other specialties among Michigan providers

Michigan providers

Optometrist share within Michigan

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Optometrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Optometrist ABMS/AOA estimate

Est. board-certified rate (Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Optometrist) — ABMS / AOA estimate

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).

LANA GRUIZENGA, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 133 E MICHIGAN AVE, PAW PAW, MI, 49079, with a listed phone of (269) 657-7288. NPI 1518048214 was issued on 10/18/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRUIZENGA 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 20 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $14K in drug spend, split 85% brand-name and 15% 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.

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

133 E MICHIGAN AVE
PAW PAW, MI 49079

Provider Details

NPI 1518048214
Specialty Optometrist
Credentials OD
Gender Female
NPI Issued 10/18/2006

License & disciplinary context — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to LANA GRUIZENGA, OD. To verify LANA GRUIZENGA, OD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

LANA GRUIZENGA, OD — brand share 85.0%
Specialty average (est.)

85% brand-name claims vs 15% generic, on 20 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.

20
Total Claims
$14K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
26
Total Day Supply
760
Brand vs Generic
85% brand / 15% generic
Brand Drug Cost
$11K

Patient Demographics

Average Patient Age
67.6 years
Avg HCC Risk Score
0.62

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Restasis
Cyclosporine
16

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

Optometrist Overview

How LANA GRUIZENGA, OD fits within the Optometrist landscape nationally.

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

LANA GRUIZENGA, OD's 20 claims are below the specialty average of 257.

Nearby Optometrist Providers in Michigan

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

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

Frequently Asked Questions

What is LANA GRUIZENGA, OD's specialty?
LANA GRUIZENGA, OD specializes in Optometrist and practices in PAW PAW, Michigan. Credentials: OD.
How much does LANA GRUIZENGA, OD prescribe under Medicare Part D?
In 2023, LANA GRUIZENGA, OD wrote 20 Medicare Part D claims totaling $14K in drug costs for N/A beneficiaries.
Where is LANA GRUIZENGA, OD located?
LANA GRUIZENGA, OD is located at 133 E MICHIGAN AVE, PAW PAW, MI, 49079. Phone: (269) 657-7288.
What is LANA GRUIZENGA, OD's NPI number?
LANA GRUIZENGA, OD's National Provider Identifier (NPI) is 1518048214, issued on 10/18/2006.
Does LANA GRUIZENGA, OD prescribe more brand-name or generic drugs?
LANA GRUIZENGA, OD's prescribing is 85% brand-name and 15% generic drugs by claim count, with $11K 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 LANA GRUIZENGA, OD prescribe most often?
Based on 2023 Medicare Part D data, LANA GRUIZENGA, OD's most frequently prescribed drugs include Restasis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LANA GRUIZENGA, OD accept Medicare?
LANA GRUIZENGA, OD appears in CMS Medicare data with 20 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LANA GRUIZENGA, OD's credentials?
LANA GRUIZENGA, OD's NPI is 1518048214 with credentials OD. 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.
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