NPI registry status
Active
2026 NPPES data Primary Care Nurse Practitioner NPI 1326371261 APRN
Verify on CMS → Mark Bielawski, APRN
Primary Care Nurse Practitioner in Newington, 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 10,179 in Primary Care 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
85
Medicare Part D claims · 23 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Bielawski, APRN filed 85 Medicare Part D claims in 2023 as a Primary Care Nurse Practitioner in Newington, Connecticut.
- 85
- Part D claims, 2023
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.
Mark Bielawski, APRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
85 0th percentile higher than 0% 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 Mark Bielawski, APRN?
Quality data not reportedPrimary specialty
Primary Care Nurse Practitioner
Medicare Part D claims
85 94% vs specialty avg
Specialty distribution in Connecticut
How Primary Care 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 Primary Care 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).
Mark Bielawski, APRN appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding APRN credentials at VETERANS ADMINISTRATION, Newington, CT, 06111, with a listed phone of (866) 808-7921. NPI 1326371261 was issued on 09/10/2009.
Medicare Part D records for calendar year 2023 show 85 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $11K in drug spend.
Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,179 enrolled providers across 54 states and an average of 1,363 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 | 1326371261 |
|---|---|
| Specialty | Primary Care Nurse Practitioner |
| Credentials | APRN |
| Gender | Male |
| NPI Issued | 09/10/2009 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
85
Total Claims
$11K
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 205
- Total Day Supply
- 5,981
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 77.7 years
- Avg HCC Risk Score
- 1.19
Primary Care Nurse Practitioner Overview
How Mark Bielawski, APRN fits within the Primary Care Nurse Practitioner landscape nationally.
10,179
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider
Mark Bielawski, APRN's 85 claims are below the specialty average of 1,363.
Nearby Primary Care Nurse Practitioner Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Bielawski.
Dr. Ivy Alexander
APRN
Storrs, CT
Karen Alicea
Bridgeport, CT
Dr. Allison Altenburger
APRN, NP-C
West Haven, CT
Dr. Suzana Alvarez
FNP-BC
Shelton, CT
Dr. Rita Amendola
N.P.
Milford, CT
Compare Primary Care 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 Primary Care 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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How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Connecticut
Frequently Asked Questions
What is Mark Bielawski, APRN's specialty? ▼
Mark Bielawski, APRN specializes in Primary Care Nurse Practitioner and practices in Newington, Connecticut. Credentials: APRN.
How much does Mark Bielawski, APRN prescribe under Medicare Part D? ▼
In 2023, Mark Bielawski, APRN wrote 85 Medicare Part D claims totaling $11K in drug costs for 23 beneficiaries.
Where is Mark Bielawski, APRN located? ▼
Mark Bielawski, APRN is located at VETERANS ADMINISTRATION, Newington, CT, 06111. Phone: (866) 808-7921.
What is Mark Bielawski, APRN's NPI number? ▼
Mark Bielawski, APRN's National Provider Identifier (NPI) is 1326371261, issued on 09/10/2009.
How many Primary Care Nurse Practitioner providers are there in the US? ▼
There are 10,179 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
Does Mark Bielawski, APRN accept Medicare? ▼
Mark Bielawski, APRN appears in CMS Medicare data with 85 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Bielawski, APRN's credentials? ▼
Mark Bielawski, APRN's NPI is 1326371261 with credentials APRN. 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.