NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1922642941 FNP
Verify on CMS → Byren Bellen, FNP
Adult Health Nurse Practitioner in Amsterdam, 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
9K
Medicare Part D claims · 364 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Byren Bellen, FNP filed 8,935 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in Amsterdam, New York, prescribing 81% generic.
- 9K
- Part D claims, 2023
- 81%
- 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.
Byren Bellen, FNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
8,935 Top 2% higher than 98% 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 Byren Bellen, FNP?
Quality data not reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
8,935 7× 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).
Byren Bellen, FNP appears in the CMS NPPES registry as an Adult Health Nurse Practitioner provider holding FNP credentials at 151 DELLA VALLE DR, Amsterdam, NY, 12010, with a listed phone of (518) 332-8253. NPI 1922642941 was issued on 11/01/2019.
Medicare Part D records for calendar year 2023 show 8,935 prescription claims written by this provider, covering 364 Medicare beneficiaries and totaling roughly $619K in drug spend, split 19% brand-name and 81% generic by claim count, with an opioid prescribing rate of 7.0%.
Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,519 enrolled providers across 55 states and an average of 1,201 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 | 1922642941 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | FNP |
| Gender | Male |
| NPI Issued | 11/01/2019 |
Hospital and facility affiliations
Facilities where Byren Bellen, FNP 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.
Mikram Jafri MD PC
Queensbury, NY
St. Mary's Healthcare
Amsterdam, 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 Byren Bellen, FNP. To verify Byren Bellen, FNP'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
Byren Bellen, FNP - brand share 19.0%
Adult Health Nurse Practitioner average
19% brand-name claims vs 81% generic, on 8,935 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.
8,935
Total Claims
$619K
Total Drug Cost
364
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,982
- Total Day Supply
- 197,213
- Brand vs Generic
- 19% brand / 81% generic
- Brand Drug Cost
- $424K
- Generic Drug Cost
- $192K
- Opioid Claims
- 621 (7.0% rate)
- Antibiotic Claims
- 580
Patient Demographics
- Average Patient Age
- 78.3 years
- Avg HCC Risk Score
- 2.44
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 33, 65-74: 99, 75-84: 109, 85+: 123
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Byren Bellen, FNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
290 claims
- Furosemide
Furosemide
277 claims
- Eliquis
Eliquis
276 claims
- Metoprolol Succinate
Metoprolol Succinate
273 claims
- Gabapentin
Gabapentin
272 claims
- Sertraline Hcl
Sertraline Hcl
235 claims
- Tramadol Hcl
Tramadol Hcl
223 claims
- Omeprazole
Omeprazole
202 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 290 |
| Furosemide | 277 |
| Eliquis Apixaban | 276 |
| Metoprolol Succinate | 273 |
| Gabapentin | 272 |
| Sertraline Hcl | 235 |
| Tramadol Hcl | 223 |
| Omeprazole | 202 |
| Myrbetriq Mirabegron | 179 |
| Gentamicin Sulfate | 170 |
* 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 Byren Bellen, FNP 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
Byren Bellen, FNP's 8,935 claims are above the specialty average of 1,201.
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 Bellen.
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 →
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 New York medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Adult Health 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.
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Frequently Asked Questions
What is Byren Bellen, FNP's specialty? ▼
Byren Bellen, FNP specializes in Adult Health Nurse Practitioner and practices in Amsterdam, New York. Credentials: FNP.
How much does Byren Bellen, FNP prescribe under Medicare Part D? ▼
In 2023, Byren Bellen, FNP wrote 8,935 Medicare Part D claims totaling $619K in drug costs for 364 beneficiaries.
Where is Byren Bellen, FNP located? ▼
Byren Bellen, FNP is located at 151 DELLA VALLE DR, Amsterdam, NY, 12010. Phone: (518) 332-8253.
What is Byren Bellen, FNP's NPI number? ▼
Byren Bellen, FNP's National Provider Identifier (NPI) is 1922642941, issued on 11/01/2019.
Does Byren Bellen, FNP prescribe more brand-name or generic drugs? ▼
Byren Bellen, FNP's prescribing is 19% brand-name and 81% generic drugs by claim count, with $424K in brand drug costs.
Does Byren Bellen, FNP prescribe opioids? ▼
Yes, Byren Bellen, FNP had 621 opioid claims in 2023 with an opioid prescribing rate of 7.0%.
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 Byren Bellen, FNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Byren Bellen, FNP's most frequently prescribed drugs include Levothyroxine Sodium, Furosemide, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Byren Bellen, FNP accept Medicare? ▼
Byren Bellen, FNP appears in CMS Medicare data with 8,935 Part D claims and 364 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Byren Bellen, FNP's credentials? ▼
Byren Bellen, FNP's NPI is 1922642941 with credentials FNP. 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
Compiled from official public sources by the PlainDoctor editorial team.
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.