NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1710559315 MSN, FNP-BC, RN-BC
Verify on CMS → Darletha Matthews, MSN, FNP-BC, RN-BC
Family Nurse Practitioner in Fountain Valley, 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 216,959 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
298
Medicare Part D claims · 187 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
69%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
76.7/100
▼ 7 pts below national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Darletha Matthews, MSN, FNP-BC, RN-BC reported a CMS MIPS final score of 76.7/100 - below the 83.5 national average - and filed 298 Medicare Part D claims in 2023.
- 76.7/100
- MIPS score · -7 vs avg
- 298
- Part D claims, 2023
- 69%
- generic prescribing
- ≥17th
- 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.
Federal trust snapshot
What official records show about Darletha Matthews, MSN, FNP-BC, RN-BC
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1710559315), first enumerated 07/13/2021.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 298 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 76.7/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Darletha Matthews, MSN, FNP-BC, RN-BC's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1710559315 · Family Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-BELOW · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1710559315
- ENUM-RECENT 2021
- TAX-MEGA 217K Family Nurse
- MIPS-BELOW 76.7/100
- RX-LIGHT 298
- BOOK-MID 15,527 in California
- PHOTO-FINISH Michelle Carlos · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Matthews · this …
Matthews · this provider
76.7 MIPS pts
- Kelly Taylor · h…
Kelly Taylor
76.7 MIPS pts
- Michelle Carlos …
Michelle Carlos
76.7 MIPS pts
- Jessica Adams · …
Jessica Adams
76.7 MIPS pts
- Brenda Sanchez ·…
Brenda Sanchez
76.7 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Darletha Matthews, MSN, FNP-BC, RN-BC'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.
77 ≥ 17th percentile 17% 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 Darletha Matthews, MSN, FNP-BC, RN-BC sits
This provider among family nurse practitioner peers
Across the 26,556 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Darletha Matthews, MSN, FNP-BC, RN-BC writes more Part D claims than 43% of them and scores higher on MIPS quality than 18% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family nurse practitioner peer from a representative sample of 60; the gold marker is Darletha Matthews, MSN, FNP-BC, RN-BC. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Darletha Matthews, MSN, FNP-BC, RN-BC?
Below national averagePrimary specialty
Family Nurse Practitioner
Medicare Part D claims
298 76% vs specialty avg
MIPS final score
76.7/100 6.8 pts vs avg
Specialty distribution in California
How Family Nurse Practitioner compares to other specialties among California providers
Medicare quality performance, MIPS
Darletha Matthews, MSN, FNP-BC, RN-BC's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 76.7/100
- 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).
Practice Address
Provider Details
| NPI | 1710559315 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | MSN, FNP-BC, RN-BC |
| Gender | Female |
| NPI Issued | 07/13/2021 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
76.7426
Final Score
Measured-score avg: 83.5
80.9479
Quality
55.1205
Cost
78
Promoting Interoperability
Reporting: Group practice
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 Darletha Matthews, MSN, FNP-BC, RN-BC. To verify Darletha Matthews, MSN, FNP-BC, RN-BC'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
Darletha Matthews, MSN, FNP-BC, RN-BC - brand share 14.0%
Family Nurse Practitioner average
14% brand-name claims vs 69% generic, on 298 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.
298
Total Claims
$9K
Total Drug Cost
187
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 344.13
- Total Day Supply
- 5,384
- Brand vs Generic
- 14% brand / 69% generic
- Brand Drug Cost
- $5K
- Generic Drug Cost
- $3K
- Antibiotic Claims
- 81
Patient Demographics
- Average Patient Age
- 69.2 years
- Avg HCC Risk Score
- 0.94
- Gender Split
- 67% female / 33% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Darletha Matthews, MSN, FNP-BC, RN-BC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Paxlovid (Eua)
Paxlovid (Eua)
32 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
30 claims
- Azithromycin
Azithromycin
22 claims
- Fluticasone Propio…
Fluticasone Propionate
19 claims
- Lagevrio (Eua)
Lagevrio (Eua)
17 claims
- Nitrofurantoin Mon…
Nitrofurantoin Mono-Macro
16 claims
- Methylprednisolone
Methylprednisolone
15 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
14 claims
| Drug | Claims |
|---|---|
| Paxlovid (Eua) Nirmatrelvir/Ritonavir | 32 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 30 |
| Azithromycin | 22 |
| Fluticasone Propionate | 19 |
| Lagevrio (Eua) Molnupiravir | 17 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 16 |
| Methylprednisolone | 15 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 14 |
* 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 Darletha Matthews, MSN, FNP-BC, RN-BC fits within the Family Nurse Practitioner landscape nationally.
216,959
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,224
Avg Claims per Provider
Darletha Matthews, MSN, FNP-BC, RN-BC's 298 claims are below the specialty average of 1,224.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Matthews, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (76.7 here).
Same NPPES enumeration year (2021)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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 Matthews.
One of 15,527 Family Nurse Practitioner providers enrolled in California, 5 are shown here.
Danielle Aaroe
FAMILY NURSE PRACTIT
Oroville, CA
Joshua Aaron
Mission Hills, CA
Orly Aaron
NP
San Francisco, CA
Paris Gilbert Russ Aaron
Sacramento, CA
Alvin Joseph Abad
FNP-C
San Francisco, CA
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Darletha Matthews, MSN, FNP-BC, RN-BC's specialty? ▼
Darletha Matthews, MSN, FNP-BC, RN-BC specializes in Family Nurse Practitioner and practices in Fountain Valley, California. Credentials: MSN, FNP-BC, RN-BC.
How much does Darletha Matthews, MSN, FNP-BC, RN-BC prescribe under Medicare Part D? ▼
In 2023, Darletha Matthews, MSN, FNP-BC, RN-BC wrote 298 Medicare Part D claims totaling $9K in drug costs for 187 beneficiaries.
What is Darletha Matthews, MSN, FNP-BC, RN-BC's Medicare quality score? ▼
Darletha Matthews, MSN, FNP-BC, RN-BC has a CMS MIPS Final Score of 76.7/100 (Quality: 80.9, Cost: 55.1). 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 Darletha Matthews, MSN, FNP-BC, RN-BC located? ▼
Darletha Matthews, MSN, FNP-BC, RN-BC is located at 17360 BROOKHURST STREET, Fountain Valley, CA, 92708. Phone: (866) 276-3627.
What is Darletha Matthews, MSN, FNP-BC, RN-BC's NPI number? ▼
Darletha Matthews, MSN, FNP-BC, RN-BC's National Provider Identifier (NPI) is 1710559315, issued on 07/13/2021.
Does Darletha Matthews, MSN, FNP-BC, RN-BC prescribe more brand-name or generic drugs? ▼
Darletha Matthews, MSN, FNP-BC, RN-BC's prescribing is 14% brand-name and 69% generic drugs by claim count, with $5K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 216,959 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,224 Medicare Part D claims per year.
What drugs does Darletha Matthews, MSN, FNP-BC, RN-BC prescribe most often? ▼
Based on 2023 Medicare Part D data, Darletha Matthews, MSN, FNP-BC, RN-BC's most frequently prescribed drugs include Paxlovid (Eua), Albuterol Sulfate Hfa, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Darletha Matthews, MSN, FNP-BC, RN-BC accept Medicare? ▼
Darletha Matthews, MSN, FNP-BC, RN-BC appears in CMS Medicare data with 298 Part D claims and 187 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Darletha Matthews, MSN, FNP-BC, RN-BC's credentials? ▼
Darletha Matthews, MSN, FNP-BC, RN-BC's NPI is 1710559315 with credentials MSN, FNP-BC, RN-BC. 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 August 2026.