NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1790151405 NP
Verify on CMS → Alice Ahn, NP
Nurse Practitioner in Duarte, 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 87,227 in Nurse Practitioner, 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
593
Medicare Part D claims · 261 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
99.1/100
▲ 16 pts above national avg 83.1 · Exceptional
Industry payments
$96.13
4 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Alice Ahn, NP reported a CMS MIPS final score of 99.1/100 - above the 83.1 national average - and filed 593 Medicare Part D claims in 2023.
- 99.1/100
- MIPS score · +16 vs avg
- 593
- Part D claims, 2023
- 80%
- generic prescribing
- $96.13
- 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.
Alice Ahn, NP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
99 Top 9% higher than 91% of 477,587 scored providers
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 Alice Ahn, NP sits
This provider among nurse practitioner peers
Across the 13,476 nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Alice Ahn, NP writes more Part D claims than 60% of them and scores higher on MIPS quality than 92% - placing this provider in the high-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
Each dot is one nurse practitioner peer from a representative sample of 60; the gold marker is Alice Ahn, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Alice Ahn, NP?
High performer (top quartile)Primary specialty
Nurse Practitioner
Medicare Part D claims
593 45% vs specialty avg
MIPS final score
99.1/100 16 pts vs avg
Specialty distribution in California
How Nurse Practitioner compares to other specialties among California providers
Medicare quality performance, MIPS
Alice Ahn, NP's 2023 MIPS final score plotted against the Nurse Practitioner national average
- MIPS Final Score
- 99.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nurse Practitioner) - 99.1/100 vs national avg 83.1
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).
Alice Ahn, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 1500 E. DUARTE ROAD, Duarte, CA, 91010, with a listed phone of (626) 256-4673. NPI 1790151405 was issued on 08/17/2015.
Medicare Part D records for calendar year 2023 show 593 prescription claims written by this provider, covering 261 Medicare beneficiaries and totaling roughly $206K in drug spend, split 20% brand-name and 80% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.1/100 for the 2023 performance year (Quality 85.2), compared with the national average of 83.1.
Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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 | 1790151405 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 08/17/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
99.1275
Final Score
Avg: 83.1
85.2396
Quality
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Alice Ahn, NP 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.
City OF Hope Medical Foundation
Duarte, 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 Alice Ahn, NP. Source: openpaymentsdata.cms.gov.
Total received
$96
Largest payer
Genentech USA, Inc.
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 Alice Ahn, NP. To verify Alice Ahn, 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 · Typical
Alice Ahn, NP - brand share 20.0%
Nurse Practitioner average
20% brand-name claims vs 80% generic, on 593 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.
593
Total Claims
$206K
Total Drug Cost
261
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,040
- Total Day Supply
- 26,041
- Brand vs Generic
- 20% brand / 80% generic
- Brand Drug Cost
- $148K
- Generic Drug Cost
- $59K
- Antibiotic Claims
- 30
Patient Demographics
- Average Patient Age
- 71.1 years
- Avg HCC Risk Score
- 2.17
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 37, 65-74: 129, 75-84: 81, 85+: 14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Alice Ahn, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Omeprazole
Omeprazole
74 claims
- Pantoprazole Sodium
Pantoprazole Sodium
74 claims
- Entecavir
Entecavir
36 claims
- Dexlansoprazole Dr 24
Dexlansoprazole Dr
24 claims
- Dicyclomine Hcl 15
Dicyclomine Hcl
15 claims
- Linzess 15
Linzess
15 claims
- Mesalamine 15
Mesalamine
15 claims
- Diphenoxylate-Atro… 14
Diphenoxylate-Atropine
14 claims
| Drug | Claims |
|---|---|
| Omeprazole | 74 |
| Pantoprazole Sodium | 74 |
| Entecavir | 36 |
| Dexlansoprazole Dr Dexlansoprazole | 24 |
| Dicyclomine Hcl | 15 |
| Linzess Linaclotide | 15 |
| Mesalamine | 15 |
| Diphenoxylate-Atropine Diphenoxylate Hcl/Atropine | 14 |
| Metronidazole | 12 |
| Vemlidy Tenofovir Alafenamide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Alice Ahn, NP fits within the Nurse Practitioner landscape nationally.
87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Alice Ahn, NP's 593 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Ahn.
Dr. Barbara Aaronson
RN/NURSE PRACTITONER
Los Angeles, CA
Dr. Albert Aba
AGNP
San Francisco, CA
Venice Ababat
Colton, CA
Dr. Martha Ababneh
CNA
El Monte, CA
Dr. Chelsea Abad
CRNP, AGPCNP - BC
Duarte, CA
Compare Nurse Practitioner 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 Nurse Practitioner 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Alice Ahn, NP's specialty? ▼
Alice Ahn, NP specializes in Nurse Practitioner and practices in Duarte, California. Credentials: NP.
How much does Alice Ahn, NP prescribe under Medicare Part D? ▼
In 2023, Alice Ahn, NP wrote 593 Medicare Part D claims totaling $206K in drug costs for 261 beneficiaries.
What is Alice Ahn, NP's Medicare quality score? ▼
Alice Ahn, NP has a CMS MIPS Final Score of 99.1/100 (Quality: 85.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Alice Ahn, NP located? ▼
Alice Ahn, NP is located at 1500 E. DUARTE ROAD, Duarte, CA, 91010. Phone: (626) 256-4673.
What is Alice Ahn, NP's NPI number? ▼
Alice Ahn, NP's National Provider Identifier (NPI) is 1790151405, issued on 08/17/2015.
Does Alice Ahn, NP prescribe more brand-name or generic drugs? ▼
Alice Ahn, NP's prescribing is 20% brand-name and 80% generic drugs by claim count, with $148K in brand drug costs.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Alice Ahn, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Alice Ahn, NP's most frequently prescribed drugs include Omeprazole, Pantoprazole Sodium, Entecavir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alice Ahn, NP accept Medicare? ▼
Alice Ahn, NP appears in CMS Medicare data with 593 Part D claims and 261 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alice Ahn, NP's credentials? ▼
Alice Ahn, NP's NPI is 1790151405 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
Compiled from official public sources by the PlainDoctor editorial team.