NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1194177188 NURSE PRACTITIONER
Verify on CMS → Marilyn Rosca, NURSE PRACTITIONER
Gerontology Nurse Practitioner in Lakewood, 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 10,056 in Gerontology 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
771
Medicare Part D claims · 176 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$119.72
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Marilyn Rosca, NURSE PRACTITIONER filed 771 Medicare Part D claims in 2024 as a Gerontology Nurse Practitioner in Lakewood, California, prescribing 70% generic.
- 771
- Part D claims, 2024
- 70%
- generic prescribing
- $119.72
- industry payments (Sunshine Act)
- ≥70th
- pct by Part D claim volume (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 Marilyn Rosca, NURSE PRACTITIONER
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1194177188), first enumerated 07/01/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 771 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$119.72 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Marilyn Rosca, NURSE PRACTITIONER'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 1194177188 · Gerontology Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1194177188
- ENUM-MID 2016
- TAX-MID 10K Gerontology Nurse
- RX-LIGHT 771
- BOOK-LIGHT 557 in California
- PHOTO-ENUM Terence Makoid, AGNP · 2016
Marilyn Rosca, NURSE PRACTITIONER's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
771 ≥ 70th percentile 70% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Marilyn Rosca, NURSE PRACTITIONER?
Quality data not reportedPrimary specialty
Gerontology Nurse Practitioner
Medicare Part D claims
771 43% vs specialty avg
Specialty distribution in California
How Gerontology 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 Gerontology 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).
Practice Address
Provider Details
| NPI | 1194177188 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Credentials | NURSE PRACTITIONER |
| Gender | Female |
| NPI Issued | 07/01/2016 |
Hospital and facility affiliations
Facilities where Marilyn Rosca, NURSE PRACTITIONER 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.
Altea Medical California PC
Eureka, CA
Meher F Tabatabai M D Inc
Lynwood, 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 Marilyn Rosca, NURSE PRACTITIONER. Source: openpaymentsdata.cms.gov.
Total received
$120
Largest payer
Ardelyx, 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 Marilyn Rosca, NURSE PRACTITIONER. To verify Marilyn Rosca, NURSE PRACTITIONER'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 · Above average
Marilyn Rosca, NURSE PRACTITIONER - brand share 30.0%
Gerontology Nurse Practitioner average
30% brand-name claims vs 70% generic, on 771 2024 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 2024.
771
Total Claims
$183K
Total Drug Cost
176
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,064.667
- Total Day Supply
- 26,669
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $147K
- Generic Drug Cost
- $36K
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 65.7 years
- Avg HCC Risk Score
- 8.04
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 72, 65-74: 56, 75-84: 34, 85+: 14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Marilyn Rosca, NURSE PRACTITIONER prescribes most
Top Medicare Part D drugs by claim count, 2024
- Prosol
Prosol
84 claims
- Calcium Acetate
Calcium Acetate
78 claims
- Sevelamer Carbonate
Sevelamer Carbonate
73 claims
- Clinolipid
Clinolipid
72 claims
- Nifedipine Er
Nifedipine Er
43 claims
- Velphoro
Velphoro
36 claims
- Ropinirole Hcl 26
Ropinirole Hcl
26 claims
- Sodium Polystyrene… 26
Sodium Polystyrene Sulfonate
26 claims
| Drug | Claims |
|---|---|
| Prosol Parenteral Amino Acid 20% No.1 | 84 |
| Calcium Acetate | 78 |
| Sevelamer Carbonate | 73 |
| Clinolipid Fat Emulsion/Olive/Soy/Phospho | 72 |
| Nifedipine Er Nifedipine | 43 |
| Velphoro Sucroferric Oxyhydroxide | 36 |
| Ropinirole Hcl | 26 |
| Sodium Polystyrene Sulfonate | 26 |
| Lokelma Sodium Zirconium Cyclosilicate | 22 |
| Clonidine Hcl | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gerontology Nurse Practitioner Overview
How Marilyn Rosca, NURSE PRACTITIONER fits within the Gerontology Nurse Practitioner landscape nationally.
10,056
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,350
Avg Claims per Provider
Marilyn Rosca, NURSE PRACTITIONER's 771 claims are below the specialty average of 1,350.
Nationwide Gerontology Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Rosca, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gerontology Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Rosca.
One of 557 Gerontology Nurse Practitioner providers enrolled in California, 5 are shown here.
Abigail Abar-Calica
N.P.
Menlo Park, CA
Michelle Abrams
NP
Thousand Oaks, CA
Roman Emmanuel Acebedo
Carson, CA
Karina Acevedo
AGACNP-BC
Los Angeles, CA
Lisa Adamek
NP
Roseville, CA
Compare Gerontology Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Marilyn Rosca, NURSE PRACTITIONER's specialty? ▼
Marilyn Rosca, NURSE PRACTITIONER specializes in Gerontology Nurse Practitioner and practices in Lakewood, California. Credentials: NURSE PRACTITIONER.
How much does Marilyn Rosca, NURSE PRACTITIONER prescribe under Medicare Part D? ▼
In 2024, Marilyn Rosca, NURSE PRACTITIONER wrote 771 Medicare Part D claims totaling $183K in drug costs for 176 beneficiaries.
Where is Marilyn Rosca, NURSE PRACTITIONER located? ▼
Marilyn Rosca, NURSE PRACTITIONER is located at 12234 RENVILLE ST, Lakewood, CA, 90715. Phone: (562) 228-6346.
What is Marilyn Rosca, NURSE PRACTITIONER's NPI number? ▼
Marilyn Rosca, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1194177188, issued on 07/01/2016.
Does Marilyn Rosca, NURSE PRACTITIONER prescribe more brand-name or generic drugs? ▼
Marilyn Rosca, NURSE PRACTITIONER's prescribing is 30% brand-name and 70% generic drugs by claim count, with $147K in brand drug costs.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 10,056 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,350 Medicare Part D claims per year.
What drugs does Marilyn Rosca, NURSE PRACTITIONER prescribe most often? ▼
Based on 2024 Medicare Part D data, Marilyn Rosca, NURSE PRACTITIONER's most frequently prescribed drugs include Prosol, Calcium Acetate, Sevelamer Carbonate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marilyn Rosca, NURSE PRACTITIONER accept Medicare? ▼
Marilyn Rosca, NURSE PRACTITIONER appears in CMS Medicare data with 771 Part D claims and 176 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marilyn Rosca, NURSE PRACTITIONER's credentials? ▼
Marilyn Rosca, NURSE PRACTITIONER's NPI is 1194177188 with credentials NURSE PRACTITIONER. 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 (2024). 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 August 2026 (NPPES) / 2024 (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.