NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1730782236 AGNP
Verify on CMS → Cassandra Sylvain, AGNP
Adult Health Nurse Practitioner in Brooklyn, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 29,519 in Adult Health 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
3K
Medicare Part D claims · 495 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
87%
generic claims · 10% 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
Cassandra Sylvain, AGNP filed 2,641 Medicare Part D claims in 2023 as an Adult Health Nurse Practitioner in Brooklyn, New York, prescribing 87% generic.
- 3K
- Part D claims, 2023
- 87%
- generic prescribing
- ≥87th
- 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 Cassandra Sylvain, AGNP
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 1730782236), first enumerated 11/17/2020.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,641 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
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
New York statewide board action statistics are published annually — these figures describe aggregate state activity, not Cassandra Sylvain, AGNP's individual license status. Verify directly with the state medical board.
Source: NYSBPMC 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 1730782236 · Adult Health Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MID · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1730782236
- ENUM-RECENT 2020
- TAX-MID 30K Adult Health
- RX-MID 2,641
- BOOK-MID 5,422 in New York
- PHOTO-ENUM Aubrey Duman · 2020
Cassandra Sylvain, AGNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,641 ≥ 87th percentile 87% of 1,370,886 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 · 2023
What does the federal data show about Cassandra Sylvain, AGNP?
Quality data not reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
2,641 120% vs specialty avg
Specialty distribution in New York
How Adult Health Nurse Practitioner compares to other specialties among New York 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 Adult Health 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 | 1730782236 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | AGNP |
| Gender | Female |
| NPI Issued | 11/17/2020 |
Hospital and facility affiliations
Facilities where Cassandra Sylvain, AGNP 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.
New York University
New York, NY
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 - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to Cassandra Sylvain, AGNP. To verify Cassandra Sylvain, AGNP's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Cassandra Sylvain, AGNP - brand share 10.0%
Adult Health Nurse Practitioner average
10% brand-name claims vs 87% generic, on 2,641 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.
2,641
Total Claims
$237K
Total Drug Cost
495
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,216
- Total Day Supply
- 181,851
- Brand vs Generic
- 10% brand / 87% generic
- Brand Drug Cost
- $176K
- Generic Drug Cost
- $58K
- Antibiotic Claims
- 52
Patient Demographics
- Average Patient Age
- 73.2 years
- Avg HCC Risk Score
- 1.35
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 54, 65-74: 226, 75-84: 164, 85+: 51
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Cassandra Sylvain, AGNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
270 claims
- Atorvastatin Calcium
Atorvastatin Calcium
175 claims
- Lisinopril 107
Lisinopril
107 claims
- Metformin Hcl 98
Metformin Hcl
98 claims
- Metoprolol Succinate 77
Metoprolol Succinate
77 claims
- Losartan Potassium 73
Losartan Potassium
73 claims
- Simvastatin 73
Simvastatin
73 claims
- Rosuvastatin Calcium 62
Rosuvastatin Calcium
62 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 270 |
| Atorvastatin Calcium | 175 |
| Lisinopril | 107 |
| Metformin Hcl | 98 |
| Metoprolol Succinate | 77 |
| Losartan Potassium | 73 |
| Simvastatin | 73 |
| Rosuvastatin Calcium | 62 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 61 |
| Amlodipine Besylate-Benazepril Amlodipine Besylate/Benazepril | 55 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How Cassandra Sylvain, AGNP fits within the Adult Health Nurse Practitioner landscape nationally.
29,519
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider
Cassandra Sylvain, AGNP's 2,641 claims are above the specialty average of 1,201.
Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Sylvain, both outside New York so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2020)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Sylvain.
One of 5,422 Adult Health Nurse Practitioner providers enrolled in New York, 5 are shown here.
Dr. Danielle Aaron
CRNP
New York, NY
Vincent Abalajon
Elmhurst, NY
Dr. Megan Abate
ANP
New York, NY
Dr. Omowunmi Abayomi
N.P.
Staten Island, NY
Dr. Ashley Abbatantono
NP
New York, NY
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Cassandra Sylvain, AGNP's specialty? ▼
Cassandra Sylvain, AGNP specializes in Adult Health Nurse Practitioner and practices in Brooklyn, New York. Credentials: AGNP.
How much does Cassandra Sylvain, AGNP prescribe under Medicare Part D? ▼
In 2023, Cassandra Sylvain, AGNP wrote 2,641 Medicare Part D claims totaling $237K in drug costs for 495 beneficiaries.
Where is Cassandra Sylvain, AGNP located? ▼
Cassandra Sylvain, AGNP is located at 195 MONTAGUE ST, Brooklyn, NY, 11201. Phone: (718) 422-8000.
What is Cassandra Sylvain, AGNP's NPI number? ▼
Cassandra Sylvain, AGNP's National Provider Identifier (NPI) is 1730782236, issued on 11/17/2020.
Does Cassandra Sylvain, AGNP prescribe more brand-name or generic drugs? ▼
Cassandra Sylvain, AGNP's prescribing is 10% brand-name and 87% generic drugs by claim count, with $176K in brand drug costs.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,519 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does Cassandra Sylvain, AGNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Cassandra Sylvain, AGNP's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cassandra Sylvain, AGNP accept Medicare? ▼
Cassandra Sylvain, AGNP appears in CMS Medicare data with 2,641 Part D claims and 495 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cassandra Sylvain, AGNP's credentials? ▼
Cassandra Sylvain, AGNP's NPI is 1730782236 with credentials AGNP. 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.