2026 NPPES data Optometrist NPI 1245682178 OD
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LAUREN GUAJARDO, OD

Optometrist in DAVIS, California. 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
172
Medicare Part D claims · 79 beneficiaries · Optometrist avg: 257
Generic prescribing
48%
generic claims · 52% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$543.26
7 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

LAUREN GUAJARDO, OD filed 172 Medicare Part D claims in 2023 as a Optometrist in DAVIS, California, prescribing 48% generic.

172
Part D claims, 2023
48%
generic prescribing
$543.26
industry payments (Sunshine Act)

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.

LAUREN GUAJARDO, OD's Medicare Part D volume vs every U.S. prescriber

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

172 35th percentile higher than 35% 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 LAUREN GUAJARDO, OD?

Quality data not reported

NPI registry status

Active

Issued 07/03/2016

NPI 1245682178

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

172 33% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in California

How Optometrist compares to other specialties among California providers

California providers

Optometrist share within California

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

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).

LAUREN GUAJARDO, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 1 SHIELDS AVE, DAVIS, CA, 95616, with a listed phone of (530) 752-8612. NPI 1245682178 was issued on 07/03/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUAJARDO 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 172 prescription claims written by this provider, covering 79 Medicare beneficiaries and totaling roughly $85K in drug spend, split 52% brand-name and 48% 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

1 SHIELDS AVE
DAVIS, CA 95616

Provider Details

NPI 1245682178
Specialty Optometrist
Credentials OD
Gender Female
NPI Issued 07/03/2016

Hospital and facility affiliations

Facilities where LAUREN GUAJARDO, OD 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.

REGENTS OF THE UNIV OF CA
SACRAMENTO, CA
REGENTS OF THE UNIVERSITY OF CALIFORNIA
DAVIS, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for LAUREN GUAJARDO, OD. Source: openpaymentsdata.cms.gov.

Total received

$543

Largest payer

Alcon Vision LLC

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 LAUREN GUAJARDO, OD. To verify LAUREN GUAJARDO, OD'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

LAUREN GUAJARDO, OD — brand share 52.0%
Specialty average (est.)

52% brand-name claims vs 48% generic, on 172 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.

172
Total Claims
$85K
Total Drug Cost
79
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
287
Total Day Supply
7,455
Brand vs Generic
52% brand / 48% generic
Brand Drug Cost
$82K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
71.7 years
Avg HCC Risk Score
1.47
Gender Split
73% female / 27% male

Top Prescribed Drugs (Medicare Part D)

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

What LAUREN GUAJARDO, OD 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
29
Erythromycin
Erythromycin Base
28
Latanoprost
21
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
15
Cyclosporine
14
Xiidra
Lifitegrast
12

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

Optometrist Overview

How LAUREN GUAJARDO, OD fits within the Optometrist landscape nationally.

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

LAUREN GUAJARDO, OD's 172 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 GUAJARDO.

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

Frequently Asked Questions

What is LAUREN GUAJARDO, OD's specialty?
LAUREN GUAJARDO, OD specializes in Optometrist and practices in DAVIS, California. Credentials: OD.
How much does LAUREN GUAJARDO, OD prescribe under Medicare Part D?
In 2023, LAUREN GUAJARDO, OD wrote 172 Medicare Part D claims totaling $85K in drug costs for 79 beneficiaries.
Where is LAUREN GUAJARDO, OD located?
LAUREN GUAJARDO, OD is located at 1 SHIELDS AVE, DAVIS, CA, 95616. Phone: (530) 752-8612.
What is LAUREN GUAJARDO, OD's NPI number?
LAUREN GUAJARDO, OD's National Provider Identifier (NPI) is 1245682178, issued on 07/03/2016.
Does LAUREN GUAJARDO, OD prescribe more brand-name or generic drugs?
LAUREN GUAJARDO, OD's prescribing is 52% brand-name and 48% generic drugs by claim count, with $82K 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 LAUREN GUAJARDO, OD prescribe most often?
Based on 2023 Medicare Part D data, LAUREN GUAJARDO, OD's most frequently prescribed drugs include Restasis, Erythromycin, Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LAUREN GUAJARDO, OD accept Medicare?
LAUREN GUAJARDO, OD appears in CMS Medicare data with 172 Part D claims and 79 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LAUREN GUAJARDO, OD's credentials?
LAUREN GUAJARDO, OD's NPI is 1245682178 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