NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1346398286 NP
Verify on CMS → Gay Beseth, NP
Nurse Practitioner in Upland, 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 87,700 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
227
Medicare Part D claims · 97 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
41%
generic claims · 59% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$43.92
2 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
Gay Beseth, NP filed 227 Medicare Part D claims in 2023 as a Nurse Practitioner in Upland, California, prescribing 41% generic.
- 227
- Part D claims, 2023
- 41%
- generic prescribing
- $43.92
- 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.
Gay Beseth, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
227 49th percentile higher than 49% of 1,370,886 prescribers
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 Gay Beseth, NP?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
227 79% vs specialty avg
Specialty distribution in California
How Nurse Practitioner compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nurse Practitioner. Verify directly:
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).
Gay Beseth, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 510 N 13TH AVE, Upland, CA, 91786, with a listed phone of (909) 920-0525. NPI 1346398286 was issued on 01/08/2007.
Medicare Part D records for calendar year 2023 show 227 prescription claims written by this provider, covering 97 Medicare beneficiaries and totaling roughly $102K in drug spend, split 59% brand-name and 41% generic by claim count, with an opioid prescribing rate of 17.6%.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 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 | 1346398286 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 01/08/2007 |
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 Gay Beseth, NP. Source: openpaymentsdata.cms.gov.
Total received
$44
Largest payer
Ethicon US, 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 Gay Beseth, NP. To verify Gay Beseth, 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 · Brand-heavy
Gay Beseth, NP - brand share 59.0%
Nurse Practitioner average
59% brand-name claims vs 41% generic, on 227 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.
227
Total Claims
$102K
Total Drug Cost
97
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 291
- Total Day Supply
- 7,239
- Brand vs Generic
- 59% brand / 41% generic
- Brand Drug Cost
- $101K
- Generic Drug Cost
- $1K
- Opioid Claims
- 40 (17.6% rate)
- Antibiotic Claims
- 16
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 3.94
- Gender Split
- 36% female / 64% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gay Beseth, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Xarelto
Xarelto
108 claims
- Clopidogrel 27
Clopidogrel
27 claims
- Eliquis 24
Eliquis
24 claims
- Hydrocodone-Acetam… 20
Hydrocodone-Acetaminophen
20 claims
- Oxycodone-Acetamin… 11
Oxycodone-Acetaminophen
11 claims
| Drug | Claims |
|---|---|
| Xarelto Rivaroxaban | 108 |
| Clopidogrel Clopidogrel Bisulfate | 27 |
| Eliquis Apixaban | 24 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 20 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 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 Gay Beseth, NP fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Gay Beseth, NP's 227 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 Beseth.
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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore California
Frequently Asked Questions
What is Gay Beseth, NP's specialty? ▼
Gay Beseth, NP specializes in Nurse Practitioner and practices in Upland, California. Credentials: NP.
How much does Gay Beseth, NP prescribe under Medicare Part D? ▼
In 2023, Gay Beseth, NP wrote 227 Medicare Part D claims totaling $102K in drug costs for 97 beneficiaries.
Where is Gay Beseth, NP located? ▼
Gay Beseth, NP is located at 510 N 13TH AVE, Upland, CA, 91786. Phone: (909) 920-0525.
What is Gay Beseth, NP's NPI number? ▼
Gay Beseth, NP's National Provider Identifier (NPI) is 1346398286, issued on 01/08/2007.
Does Gay Beseth, NP prescribe more brand-name or generic drugs? ▼
Gay Beseth, NP's prescribing is 59% brand-name and 41% generic drugs by claim count, with $101K in brand drug costs.
Does Gay Beseth, NP prescribe opioids? ▼
Yes, Gay Beseth, NP had 40 opioid claims in 2023 with an opioid prescribing rate of 17.6%.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 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 Gay Beseth, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Gay Beseth, NP's most frequently prescribed drugs include Xarelto, Clopidogrel, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gay Beseth, NP accept Medicare? ▼
Gay Beseth, NP appears in CMS Medicare data with 227 Part D claims and 97 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gay Beseth, NP's credentials? ▼
Gay Beseth, NP's NPI is 1346398286 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.
- 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.
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.