NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1962079624 NP
Verify on CMS → Andrea Ludwick, NP
Registered Nurse in Santa Clara, 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 177,204 in Registered Nurse, 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
978
Medicare Part D claims · 68 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.8/100
▲ 3 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Andrea Ludwick, NP reported a CMS MIPS final score of 86.8/100 - above the 83.5 national average - and filed 978 Medicare Part D claims in 2023.
- 86.8/100
- MIPS score · +3 vs avg
- 978
- Part D claims, 2023
- 96%
- generic prescribing
- ≥49th
- pct among measured MIPS (lower-bound band)
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.
Andrea Ludwick, NP's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
87 ≥ 49th percentile 49% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Andrea Ludwick, NP sits
This provider among registered nurse peers
Across the 3,271 registered nurse providers who report both Medicare Part D prescribing and a MIPS quality score, Andrea Ludwick, NP writes more Part D claims than 72% of them and scores higher on MIPS quality than 53% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one registered nurse peer from a representative sample of 60; the gold marker is Andrea Ludwick, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Andrea Ludwick, NP?
High performer (top quartile)Primary specialty
Registered Nurse
Medicare Part D claims
978 2% vs specialty avg
MIPS final score
86.8/100 3.3 pts vs avg
Specialty distribution in California
How Registered Nurse compares to other specialties among California providers
Medicare quality performance, MIPS
Andrea Ludwick, NP's 2023 MIPS final score plotted against the Registered Nurse national average
- MIPS Final Score
- 86.8/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
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).
Andrea Ludwick, NP appears in the CMS NPPES registry as a Registered Nurse provider holding NP credentials at 3840 HOMESTEAD ROAD, Santa Clara, CA, 95051, with a listed phone of (510) 508-2897. NPI 1962079624 was issued on 06/09/2021.
Medicare Part D records for calendar year 2023 show 978 prescription claims written by this provider, covering 68 Medicare beneficiaries and totaling roughly $57K in drug spend, split 4% brand-name and 96% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.8/100 for the 2023 performance year (Quality 42.1, Cost 100), compared with the 83.5 average among clinicians with a measured score.
Registered Nurse is a high-volume specialty nationwide, with 177,204 enrolled providers across 56 states and an average of 1,000 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
Provider Details
| NPI | 1962079624 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 06/09/2021 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.8418
Final Score
Measured-score avg: 83.5
42.1045
Quality
100
Cost
Reporting: Individual
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 Andrea Ludwick, NP. To verify Andrea Ludwick, NP'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 · Generic-heavy
Andrea Ludwick, NP - brand share 4.0%
Registered Nurse average
4% brand-name claims vs 96% generic, on 978 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.
978
Total Claims
$57K
Total Drug Cost
68
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,166
- Total Day Supply
- 34,624
- Brand vs Generic
- 4% brand / 96% generic
- Brand Drug Cost
- $18K
- Generic Drug Cost
- $40K
Patient Demographics
- Average Patient Age
- 65.4 years
- Avg HCC Risk Score
- 1.26
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 19, 65-74: 34, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Andrea Ludwick, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Bupropion Xl
Bupropion Xl
76 claims
- Duloxetine Hcl
Duloxetine Hcl
68 claims
- Escitalopram Oxalate
Escitalopram Oxalate
61 claims
- Lorazepam
Lorazepam
59 claims
- Clonazepam
Clonazepam
56 claims
- Gabapentin
Gabapentin
55 claims
- Trazodone Hcl
Trazodone Hcl
52 claims
- Quetiapine Fumarate
Quetiapine Fumarate
48 claims
| Drug | Claims |
|---|---|
| Bupropion Xl Bupropion Hcl | 76 |
| Duloxetine Hcl | 68 |
| Escitalopram Oxalate | 61 |
| Lorazepam | 59 |
| Clonazepam | 56 |
| Gabapentin | 55 |
| Trazodone Hcl | 52 |
| Quetiapine Fumarate | 48 |
| Aripiprazole | 45 |
| Zolpidem Tartrate | 43 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Andrea Ludwick, NP fits within the Registered Nurse landscape nationally.
177,204
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider
Andrea Ludwick, NP's 978 claims are below the specialty average of 1,000.
Nearby Registered Nurse Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Ludwick.
One of 15,601 Registered Nurse providers enrolled in California, 5 are shown here.
Dr. Patricia A Onyango
RN
Modesto, CA
Dr. Adelaida A Zavala
RN
Ontario, CA
Dr. Anu Aaltonen-Bond
RN
Rancho Cordova, CA
Victoria Aardappel
Chico, CA
Dr. Denise Aaron
RN
San Diego, CA
Compare Registered Nurse 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 Registered Nurse 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.
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Frequently Asked Questions
What is Andrea Ludwick, NP's specialty? ▼
Andrea Ludwick, NP specializes in Registered Nurse and practices in Santa Clara, California. Credentials: NP.
How much does Andrea Ludwick, NP prescribe under Medicare Part D? ▼
In 2023, Andrea Ludwick, NP wrote 978 Medicare Part D claims totaling $57K in drug costs for 68 beneficiaries.
What is Andrea Ludwick, NP's Medicare quality score? ▼
Andrea Ludwick, NP has a CMS MIPS Final Score of 86.8/100 (Quality: 42.1, Cost: 100). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Andrea Ludwick, NP located? ▼
Andrea Ludwick, NP is located at 3840 HOMESTEAD ROAD, Santa Clara, CA, 95051. Phone: (510) 508-2897.
What is Andrea Ludwick, NP's NPI number? ▼
Andrea Ludwick, NP's National Provider Identifier (NPI) is 1962079624, issued on 06/09/2021.
Does Andrea Ludwick, NP prescribe more brand-name or generic drugs? ▼
Andrea Ludwick, NP's prescribing is 4% brand-name and 96% generic drugs by claim count, with $18K in brand drug costs.
How many Registered Nurse providers are there in the US? ▼
There are 177,204 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does Andrea Ludwick, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Andrea Ludwick, NP's most frequently prescribed drugs include Bupropion Xl, Duloxetine Hcl, Escitalopram Oxalate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Andrea Ludwick, NP accept Medicare? ▼
Andrea Ludwick, NP appears in CMS Medicare data with 978 Part D claims and 68 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Andrea Ludwick, NP's credentials? ▼
Andrea Ludwick, NP's NPI is 1962079624 with credentials NP. 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
View source datasets and methodology notes
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.