2026 NPPES data Obstetrics & Gynecology Nurse Practitioner NPI 1538225594 NP, MSN
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VERONICA LOUIE, NP, MSN

Obstetrics & Gynecology Nurse Practitioner in DALY CITY, 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
57
Medicare Part D claims · 31 beneficiaries · Obstetrics & Gynecology Nurse Practitioner avg: 232
Generic prescribing
60%
generic claims · 40% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

VERONICA LOUIE, NP, MSN filed 57 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Nurse Practitioner in DALY CITY, California, prescribing 60% generic.

57
Part D claims, 2023
60%
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.

VERONICA LOUIE, NP, MSN's Medicare Part D volume vs every U.S. prescriber

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

57 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 VERONICA LOUIE, NP, MSN?

Quality data not reported

NPI registry status

Active

Issued 12/27/2006

NPI 1538225594

Primary specialty

Obstetrics & Gynecology Nurse Practitioner

Niche

2,864 US NPIs in this specialty

Medicare Part D claims

57 75% vs specialty avg

2023 prescription claims

Specialty avg: 232

Specialty distribution in California

How Obstetrics & Gynecology Nurse Practitioner compares to other specialties among California providers

California providers

Obstetrics & Gynecology Nurse Practitioner share within California

1. Obstetrics & Gynecology Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Nurse Practitioner share within California

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology Nurse Practitioner) — 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).

VERONICA LOUIE, NP, MSN appears in the CMS NPPES registry as a Obstetrics & Gynecology Nurse Practitioner provider holding NP, MSN credentials at 395 HICKEY BLVD, DALY CITY, CA, 94015, with a listed phone of (650) 742-2173. NPI 1538225594 was issued on 12/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LOUIE 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 57 prescription claims written by this provider, covering 31 Medicare beneficiaries and totaling roughly $14K in drug spend, split 40% brand-name and 60% 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.

Obstetrics & Gynecology Nurse Practitioner is a narrow specialty nationwide, with 2,864 enrolled providers across 52 states and an average of 232 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

395 HICKEY BLVD
DALY CITY, CA 94015

Provider Details

NPI 1538225594
Specialty Obstetrics & Gynecology Nurse Practitioner
Credentials NP, MSN
Gender Female
NPI Issued 12/27/2006

Hospital and facility affiliations

Facilities where VERONICA LOUIE, NP, MSN 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.

PERMANENTE MEDICAL GROUP INC
REDWOOD CITY, 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 VERONICA LOUIE, NP, MSN. To verify VERONICA LOUIE, NP, MSN'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 · Above average

VERONICA LOUIE, NP, MSN — brand share 40.0%
Specialty average (est.)

40% brand-name claims vs 60% generic, on 57 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.

57
Total Claims
$14K
Total Drug Cost
31
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
145
Total Day Supply
4,090
Brand vs Generic
40% brand / 60% generic
Brand Drug Cost
$12K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
0.72
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Estring
Estradiol
20
Estradiol
16

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

Obstetrics & Gynecology Nurse Practitioner Overview

How VERONICA LOUIE, NP, MSN fits within the Obstetrics & Gynecology Nurse Practitioner landscape nationally.

2,864
Obstetrics & Gynecology Nurse Practitioner Providers in US
52
States with Obstetrics & Gynecology Nurse Practitioner
232
Avg Claims per Provider

VERONICA LOUIE, NP, MSN's 57 claims are below the specialty average of 232.

Nearby Obstetrics & Gynecology Nurse Practitioner Providers in California

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

Compare Obstetrics & Gynecology Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is VERONICA LOUIE, NP, MSN's specialty?
VERONICA LOUIE, NP, MSN specializes in Obstetrics & Gynecology Nurse Practitioner and practices in DALY CITY, California. Credentials: NP, MSN.
How much does VERONICA LOUIE, NP, MSN prescribe under Medicare Part D?
In 2023, VERONICA LOUIE, NP, MSN wrote 57 Medicare Part D claims totaling $14K in drug costs for 31 beneficiaries.
Where is VERONICA LOUIE, NP, MSN located?
VERONICA LOUIE, NP, MSN is located at 395 HICKEY BLVD, DALY CITY, CA, 94015. Phone: (650) 742-2173.
What is VERONICA LOUIE, NP, MSN's NPI number?
VERONICA LOUIE, NP, MSN's National Provider Identifier (NPI) is 1538225594, issued on 12/27/2006.
Does VERONICA LOUIE, NP, MSN prescribe more brand-name or generic drugs?
VERONICA LOUIE, NP, MSN's prescribing is 40% brand-name and 60% generic drugs by claim count, with $12K in brand drug costs.
How many Obstetrics & Gynecology Nurse Practitioner providers are there in the US?
There are 2,864 Obstetrics & Gynecology Nurse Practitioner providers across 52 states in the US. The average Obstetrics & Gynecology Nurse Practitioner provider writes 232 Medicare Part D claims per year.
What drugs does VERONICA LOUIE, NP, MSN prescribe most often?
Based on 2023 Medicare Part D data, VERONICA LOUIE, NP, MSN's most frequently prescribed drugs include Estring, Estradiol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does VERONICA LOUIE, NP, MSN accept Medicare?
VERONICA LOUIE, NP, MSN appears in CMS Medicare data with 57 Part D claims and 31 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify VERONICA LOUIE, NP, MSN's credentials?
VERONICA LOUIE, NP, MSN's NPI is 1538225594 with credentials NP, MSN. 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