NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1437490620 NP
Verify on CMS → Mariana Negrila, NP
Gerontology Nurse Practitioner in Stamford, 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 9,706 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
246
Medicare Part D claims · 40 beneficiaries · Gerontology 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
Mariana Negrila, NP filed 246 Medicare Part D claims in 2023 as a Gerontology Nurse Practitioner in Stamford, Connecticut, prescribing 81% generic.
- 246
- 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.
Mariana Negrila, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
246 49th percentile higher than 49% 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 Mariana Negrila, NP?
Quality data not reportedPrimary specialty
Gerontology Nurse Practitioner
Medicare Part D claims
246 81% vs specialty avg
Specialty distribution in Connecticut
How Gerontology 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 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).
Mariana Negrila, NP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding NP credentials at 1747 SUMMER ST, Stamford, CT, 06905, with a listed phone of (917) 270-9812. NPI 1437490620 was issued on 03/13/2013.
Medicare Part D records for calendar year 2023 show 246 prescription claims written by this provider, covering 40 Medicare beneficiaries and totaling roughly $30K in drug spend, split 19% brand-name and 81% generic by claim count.
Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,706 enrolled providers across 54 states and an average of 1,283 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 | 1437490620 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 03/13/2013 |
Brand vs generic prescribing mix · Typical
Mariana Negrila, NP - brand share 19.0%
Gerontology Nurse Practitioner average
19% brand-name claims vs 81% generic, on 246 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.
246
Total Claims
$30K
Total Drug Cost
40
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 461
- Total Day Supply
- 12,888
- Brand vs Generic
- 19% brand / 81% generic
- Brand Drug Cost
- $26K
- Generic Drug Cost
- $5K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 74.0 years
- Avg HCC Risk Score
- 1.29
- Gender Split
- 68% female / 33% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mariana Negrila, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Diclofenac Sodium
Diclofenac Sodium
26 claims
- Atorvastatin Calcium
Atorvastatin Calcium
16 claims
- Linzess
Linzess
14 claims
- Eliquis
Eliquis
12 claims
- Fluticasone Propio…
Fluticasone Propionate
11 claims
| Drug | Claims |
|---|---|
| Diclofenac Sodium | 26 |
| Atorvastatin Calcium | 16 |
| Linzess Linaclotide | 14 |
| Eliquis Apixaban | 12 |
| Fluticasone Propionate | 11 |
* 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 Mariana Negrila, NP fits within the Gerontology Nurse Practitioner landscape nationally.
9,706
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider
Mariana Negrila, NP's 246 claims are below the specialty average of 1,283.
Nearby Gerontology Nurse Practitioner Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Negrila.
Dr. Linda Accordino
RN, MSN
West Haven, CT
Dr. Celina Adams
APRN
Uncasville, CT
Dr. Susan Ade
APRN, RN
Shelton, CT
Dr. Lawrence Anderson
AGNP-C
Waterbury, CT
Dr. Terance Anderson
APRN
New Haven, CT
Compare Gerontology 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 Gerontology 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.
Healthcare Guides
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Frequently Asked Questions
What is Mariana Negrila, NP's specialty? ▼
Mariana Negrila, NP specializes in Gerontology Nurse Practitioner and practices in Stamford, Connecticut. Credentials: NP.
How much does Mariana Negrila, NP prescribe under Medicare Part D? ▼
In 2023, Mariana Negrila, NP wrote 246 Medicare Part D claims totaling $30K in drug costs for 40 beneficiaries.
Where is Mariana Negrila, NP located? ▼
Mariana Negrila, NP is located at 1747 SUMMER ST, Stamford, CT, 06905. Phone: (917) 270-9812.
What is Mariana Negrila, NP's NPI number? ▼
Mariana Negrila, NP's National Provider Identifier (NPI) is 1437490620, issued on 03/13/2013.
Does Mariana Negrila, NP prescribe more brand-name or generic drugs? ▼
Mariana Negrila, NP's prescribing is 19% brand-name and 81% generic drugs by claim count, with $26K in brand drug costs.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 9,706 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does Mariana Negrila, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Mariana Negrila, NP's most frequently prescribed drugs include Diclofenac Sodium, Atorvastatin Calcium, Linzess. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mariana Negrila, NP accept Medicare? ▼
Mariana Negrila, NP appears in CMS Medicare data with 246 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mariana Negrila, NP's credentials? ▼
Mariana Negrila, NP's NPI is 1437490620 with credentials NP. 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.