NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1427791052 NP
Verify on CMS → Sarah Gayle Caro, NP
Family Nurse Practitioner in Ontario, 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 210,832 in Family 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
1K
Medicare Part D claims · 124 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
83%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Sarah Gayle Caro, NP filed 1,203 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Ontario, California, prescribing 83% generic.
- 1K
- Part D claims, 2023
- 83%
- 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.
Sarah Gayle Caro, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,203 Top 22% higher than 78% 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 Sarah Gayle Caro, NP?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
1,203 2% vs specialty avg
Specialty distribution in California
How Family 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 Family 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).
Sarah Gayle Caro, NP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding NP credentials at 3990 CONCOURS, Ontario, CA, 91764, with a listed phone of (909) 608-8000. NPI 1427791052 was issued on 04/20/2022.
Medicare Part D records for calendar year 2023 show 1,203 prescription claims written by this provider, covering 124 Medicare beneficiaries and totaling roughly $101K in drug spend, split 15% brand-name and 83% generic by claim count, with an opioid prescribing rate of 1.3%.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 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 | 1427791052 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 04/20/2022 |
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 Sarah Gayle Caro, NP. To verify Sarah Gayle Caro, 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
Sarah Gayle Caro, NP - brand share 15.0%
Family Nurse Practitioner average
15% brand-name claims vs 83% generic, on 1,203 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.
1,203
Total Claims
$101K
Total Drug Cost
124
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,262
- Total Day Supply
- 66,200
- Brand vs Generic
- 15% brand / 83% generic
- Brand Drug Cost
- $73K
- Generic Drug Cost
- $27K
- Opioid Claims
- 16 (1.3% rate)
- Antibiotic Claims
- 18
Patient Demographics
- Average Patient Age
- 67.7 years
- Avg HCC Risk Score
- 1.49
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 26, 65-74: 75, 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 Sarah Gayle Caro, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
81 claims
- Amlodipine Besylate
Amlodipine Besylate
76 claims
- Losartan Potassium
Losartan Potassium
60 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
51 claims
- Metformin Hcl
Metformin Hcl
49 claims
- Omeprazole
Omeprazole
41 claims
- Gabapentin
Gabapentin
37 claims
- Lisinopril
Lisinopril
37 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 81 |
| Amlodipine Besylate | 76 |
| Losartan Potassium | 60 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 51 |
| Metformin Hcl | 49 |
| Omeprazole | 41 |
| Gabapentin | 37 |
| Lisinopril | 37 |
| Hydrochlorothiazide | 30 |
| Glipizide | 28 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Sarah Gayle Caro, NP fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Sarah Gayle Caro, NP's 1,203 claims are below the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Caro.
Dr. Danielle Aaroe
FAMILY NURSE PRACTIT
Oroville, CA
Joshua Aaron
Mission Hills, CA
Dr. Orly Aaron
NP
San Francisco, CA
Paris Gilbert Russ Aaron
Sacramento, CA
Dr. Alvin Joseph Abad
FNP-C
San Francisco, CA
Compare Family 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 Family 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 Sarah Gayle Caro, NP's specialty? ▼
Sarah Gayle Caro, NP specializes in Family Nurse Practitioner and practices in Ontario, California. Credentials: NP.
How much does Sarah Gayle Caro, NP prescribe under Medicare Part D? ▼
In 2023, Sarah Gayle Caro, NP wrote 1,203 Medicare Part D claims totaling $101K in drug costs for 124 beneficiaries.
Where is Sarah Gayle Caro, NP located? ▼
Sarah Gayle Caro, NP is located at 3990 CONCOURS, Ontario, CA, 91764. Phone: (909) 608-8000.
What is Sarah Gayle Caro, NP's NPI number? ▼
Sarah Gayle Caro, NP's National Provider Identifier (NPI) is 1427791052, issued on 04/20/2022.
Does Sarah Gayle Caro, NP prescribe more brand-name or generic drugs? ▼
Sarah Gayle Caro, NP's prescribing is 15% brand-name and 83% generic drugs by claim count, with $73K in brand drug costs.
Does Sarah Gayle Caro, NP prescribe opioids? ▼
Yes, Sarah Gayle Caro, NP had 16 opioid claims in 2023 with an opioid prescribing rate of 1.3%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Sarah Gayle Caro, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Sarah Gayle Caro, NP's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sarah Gayle Caro, NP accept Medicare? ▼
Sarah Gayle Caro, NP appears in CMS Medicare data with 1,203 Part D claims and 124 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Gayle Caro, NP's credentials? ▼
Sarah Gayle Caro, NP's NPI is 1427791052 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
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.