NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1689348740
Verify on CMS → Dahiana Rivera
Family Nurse Practitioner in Willimantic, Connecticut.
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
2K
Medicare Part D claims · 172 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
79%
generic claims · 20% 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
Dahiana Rivera filed 2,493 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Willimantic, Connecticut, prescribing 79% generic.
- 2K
- Part D claims, 2023
- 79%
- 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.
Dahiana Rivera's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,493 Top 14% higher than 86% 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 Dahiana Rivera?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
2,493 104% vs specialty avg
Specialty distribution in Connecticut
How Family Nurse Practitioner compares to other specialties among Connecticut 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 Family 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).
Dahiana Rivera appears in the CMS NPPES registry as a Family Nurse Practitioner provider at 40 MANSFIELD AVE, Willimantic, CT, 06226, with a listed phone of (860) 450-7471. NPI 1689348740 was issued on 08/03/2021.
Medicare Part D records for calendar year 2023 show 2,493 prescription claims written by this provider, covering 172 Medicare beneficiaries and totaling roughly $383K in drug spend, split 20% brand-name and 79% generic by claim count, with an opioid prescribing rate of 1.6%.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 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 | 1689348740 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Gender | Female |
| NPI Issued | 08/03/2021 |
Hospital and facility affiliations
Facilities where Dahiana Rivera 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.
Generations Family Health Center Inc
Willimantic, CT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Dahiana Rivera - brand share 20.0%
Family Nurse Practitioner average
20% brand-name claims vs 79% generic, on 2,493 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.
2,493
Total Claims
$383K
Total Drug Cost
172
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,035
- Total Day Supply
- 145,181
- Brand vs Generic
- 20% brand / 79% generic
- Brand Drug Cost
- $335K
- Generic Drug Cost
- $46K
- Opioid Claims
- 39 (1.6% rate)
- Antibiotic Claims
- 47
Patient Demographics
- Average Patient Age
- 66.1 years
- Avg HCC Risk Score
- 1.34
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 55, 65-74: 71, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Dahiana Rivera prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
192 claims
- Amlodipine Besylate
Amlodipine Besylate
135 claims
- Levothyroxine Sodium
Levothyroxine Sodium
101 claims
- Lisinopril
Lisinopril
99 claims
- Gabapentin
Gabapentin
88 claims
- Metformin Hcl
Metformin Hcl
79 claims
- Hydrochlorothiazide 67
Hydrochlorothiazide
67 claims
- Metformin Hcl Er 65
Metformin Hcl Er
65 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 192 |
| Amlodipine Besylate | 135 |
| Levothyroxine Sodium | 101 |
| Lisinopril | 99 |
| Gabapentin | 88 |
| Metformin Hcl | 79 |
| Hydrochlorothiazide | 67 |
| Metformin Hcl Er Metformin Hcl | 65 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 62 |
| Pantoprazole Sodium | 55 |
* 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 Dahiana Rivera 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
Dahiana Rivera's 2,493 claims are above the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Rivera.
Dr. Renato Abastillas
APRN
Rocky Hill, CT
Farhiya Abdi
South Windsor, CT
Dr. Maryam Abdishoo
NP
Putnam, CT
Dr. Anwar Abdulrehman
APRN
Danbury, CT
Denise Ace
Stratford, CT
Compare Family 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family 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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Medical Specialties Explained
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Frequently Asked Questions
What is Dahiana Rivera's specialty? ▼
Dahiana Rivera specializes in Family Nurse Practitioner and practices in Willimantic, Connecticut.
How much does Dahiana Rivera prescribe under Medicare Part D? ▼
In 2023, Dahiana Rivera wrote 2,493 Medicare Part D claims totaling $383K in drug costs for 172 beneficiaries.
Where is Dahiana Rivera located? ▼
Dahiana Rivera is located at 40 MANSFIELD AVE, Willimantic, CT, 06226. Phone: (860) 450-7471.
What is Dahiana Rivera's NPI number? ▼
Dahiana Rivera's National Provider Identifier (NPI) is 1689348740, issued on 08/03/2021.
Does Dahiana Rivera prescribe more brand-name or generic drugs? ▼
Dahiana Rivera's prescribing is 20% brand-name and 79% generic drugs by claim count, with $335K in brand drug costs.
Does Dahiana Rivera prescribe opioids? ▼
Yes, Dahiana Rivera had 39 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
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.
What drugs does Dahiana Rivera prescribe most often? ▼
Based on 2023 Medicare Part D data, Dahiana Rivera's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dahiana Rivera accept Medicare? ▼
Dahiana Rivera appears in CMS Medicare data with 2,493 Part D claims and 172 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dahiana Rivera's credentials? ▼
Dahiana Rivera's NPI is 1689348740. 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.