NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1215407358 APRN
Verify on CMS → Rosilyn Kattiyaman, APRN
Family Nurse Practitioner in Moreno 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 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
104
Medicare Part D claims · 71 beneficiaries · Family Nurse Practitioner avg: 1K
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
What the federal data shows
Rosilyn Kattiyaman, APRN reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 104 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 104
- Part D claims, 2023
- ≥92nd
- 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 Rosilyn Kattiyaman, APRN
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 1215407358), first enumerated 12/02/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 104 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 100/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Rosilyn Kattiyaman, APRN'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 1215407358 · Family Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-ELITE · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1215407358
- ENUM-RECENT 2018
- TAX-MEGA 211K Family Nurse
- MIPS-ELITE 100/100
- RX-LIGHT 104
- BOOK-MID 15,115 in California
- PHOTO-FINISH Olivia Aranda · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Kattiyaman · thi…
Kattiyaman · this provider
100 MIPS pts
- Candice Bertsch …
Candice Bertsch
100 MIPS pts
- Olivia Aranda · …
Olivia Aranda
100 MIPS pts
- Kendra Armer · n…
Kendra Armer
100 MIPS pts
- Jacquelyn Barnha…
Jacquelyn Barnhart
100 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Rosilyn Kattiyaman, APRN'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.
100 ≥ 92nd percentile 92% 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 Rosilyn Kattiyaman, APRN 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, Rosilyn Kattiyaman, APRN writes more Part D claims than 22% of them and scores higher on MIPS quality than 92% - placing this provider in the lower-volume, high-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 Rosilyn Kattiyaman, APRN. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Rosilyn Kattiyaman, APRN?
High performer (top quartile)Primary specialty
Family Nurse Practitioner
Medicare Part D claims
104 91% vs specialty avg
MIPS final score
100/100 16.5 pts vs avg
Specialty distribution in California
How Family Nurse Practitioner compares to other specialties among California providers
Medicare quality performance, MIPS
Rosilyn Kattiyaman, APRN's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 100/100
- 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 | 1215407358 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 12/02/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Measured-score avg: 83.5
100
Quality
94.6913
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Rosilyn Kattiyaman, APRN 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.
Cepamerica Illinois LLP
Arlington Heights, IL
County OF Riverside
Banning, 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).
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 Rosilyn Kattiyaman, APRN. To verify Rosilyn Kattiyaman, APRN'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
104
Total Claims
$5K
Total Drug Cost
71
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 112
- Total Day Supply
- 1,463
- Generic Drug Cost
- $1K
- Antibiotic Claims
- 34
Patient Demographics
- Average Patient Age
- 69.5 years
- Avg HCC Risk Score
- 1.65
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 16, 65-74: 31, 75-84: N/A, 85+: N/A
Family Nurse Practitioner Overview
How Rosilyn Kattiyaman, APRN 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
Rosilyn Kattiyaman, APRN's 104 claims are below the specialty average of 1,222.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Kattiyaman, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (100 here).
Same NPPES enumeration year (2018)
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 Kattiyaman.
One of 15,115 Family Nurse Practitioner providers enrolled in California, 5 are shown here.
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 →
Frequently Asked Questions
What is Rosilyn Kattiyaman, APRN's specialty? ▼
Rosilyn Kattiyaman, APRN specializes in Family Nurse Practitioner and practices in Moreno Valley, California. Credentials: APRN.
How much does Rosilyn Kattiyaman, APRN prescribe under Medicare Part D? ▼
In 2023, Rosilyn Kattiyaman, APRN wrote 104 Medicare Part D claims totaling $5K in drug costs for 71 beneficiaries.
What is Rosilyn Kattiyaman, APRN's Medicare quality score? ▼
Rosilyn Kattiyaman, APRN has a CMS MIPS Final Score of 100/100 (Quality: 100, Cost: 94.7). 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 Rosilyn Kattiyaman, APRN located? ▼
Rosilyn Kattiyaman, APRN is located at 26520 CACTUS AVE, Moreno Valley, CA, 92555. Phone: (951) 988-9922.
What is Rosilyn Kattiyaman, APRN's NPI number? ▼
Rosilyn Kattiyaman, APRN's National Provider Identifier (NPI) is 1215407358, issued on 12/02/2018.
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.
Does Rosilyn Kattiyaman, APRN accept Medicare? ▼
Rosilyn Kattiyaman, APRN appears in CMS Medicare data with 104 Part D claims and 71 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rosilyn Kattiyaman, APRN's credentials? ▼
Rosilyn Kattiyaman, APRN's NPI is 1215407358 with credentials APRN. 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.