2026 NPPES data Medical Physician Assistant NPI 1669721536 PA-C (PHYSICIAN ASSI
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Karyn Barringer, PA-C (PHYSICIAN ASSI

Medical Physician Assistant in Raleigh, North Carolina. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,527 in Medical Physician Assistant, 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
80
Medicare Part D claims · 36 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
68%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Karyn Barringer, PA-C (PHYSICIAN ASSI filed 80 Medicare Part D claims in 2023 as a Medical Physician Assistant in Raleigh, North Carolina, prescribing 68% generic.

80
Part D claims, 2023
68%
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.

Karyn Barringer, PA-C (PHYSICIAN ASSI's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

80 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 Karyn Barringer, PA-C (PHYSICIAN ASSI?

Quality data not reported

NPI registry status

Active

Issued 09/06/2012

NPI 1669721536

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

80 93% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in North Carolina

How Medical Physician Assistant compares to other specialties among North Carolina providers

North Carolina providers

Largest specialties in North Carolina (% of in-state providers)

Clinical Social Worker - 7.1%Clinical Social Worker7.1%Behavior Technician - 6.4%Behavior Technician6.4%Pharmacist - 5%Pharmacist5%Student in an Organized Health Care Education/Training Program - 4.5%Student in an Organized Health Care Education/Training Program4.5%Physical Therapist - 4.3%Physical Therapist4.3%Physician Assistant - 4.2%Physician Assistant4.2%Medical Physician Assistant - 0.9%Medical Physician Assistant0.9%
Largest specialties in North Carolina (% of in-state 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 Medical Physician Assistant. Verify directly:

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).

Karyn Barringer, PA-C (PHYSICIAN ASSI appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C (PHYSICIAN ASSI credentials at 3024 NEW BERN AVE, Raleigh, NC, 27610, with a listed phone of (919) 350-5318. NPI 1669721536 was issued on 09/06/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Barringer most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 80 prescription claims written by this provider, covering 36 Medicare beneficiaries and totaling roughly $137K in drug spend, split 33% brand-name and 68% generic by claim count. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

3024 NEW BERN AVE
Raleigh, NC 27610

Provider Details

NPI 1669721536
Specialty Medical Physician Assistant
Credentials PA-C (PHYSICIAN ASSI
Gender Female
NPI Issued 09/06/2012

Hospital and facility affiliations

Facilities where Karyn Barringer, PA-C (PHYSICIAN ASSI 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.

Duke Health Integrated Practice Inc
Cary, NC

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 · Above average

Karyn Barringer, PA-C (PHYSICIAN ASSI - brand share 33.0%
Medical Physician Assistant average

33% brand-name claims vs 68% generic, on 80 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.

80
Total Claims
$137K
Total Drug Cost
36
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
117
Total Day Supply
3,339
Brand vs Generic
33% brand / 68% generic
Brand Drug Cost
$134K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
68.4 years
Avg HCC Risk Score
2.04
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Vemlidy
Tenofovir Alafenamide
18

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Medical Physician Assistant Overview

How Karyn Barringer, PA-C (PHYSICIAN ASSI fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

Karyn Barringer, PA-C (PHYSICIAN ASSI's 80 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Barringer.

Compare Medical Physician Assistant 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 North Carolina medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Medical Physician Assistant 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.

Frequently Asked Questions

What is Karyn Barringer, PA-C (PHYSICIAN ASSI's specialty?
Karyn Barringer, PA-C (PHYSICIAN ASSI specializes in Medical Physician Assistant and practices in Raleigh, North Carolina. Credentials: PA-C (PHYSICIAN ASSI.
How much does Karyn Barringer, PA-C (PHYSICIAN ASSI prescribe under Medicare Part D?
In 2023, Karyn Barringer, PA-C (PHYSICIAN ASSI wrote 80 Medicare Part D claims totaling $137K in drug costs for 36 beneficiaries.
Where is Karyn Barringer, PA-C (PHYSICIAN ASSI located?
Karyn Barringer, PA-C (PHYSICIAN ASSI is located at 3024 NEW BERN AVE, Raleigh, NC, 27610. Phone: (919) 350-5318.
What is Karyn Barringer, PA-C (PHYSICIAN ASSI's NPI number?
Karyn Barringer, PA-C (PHYSICIAN ASSI's National Provider Identifier (NPI) is 1669721536, issued on 09/06/2012.
Does Karyn Barringer, PA-C (PHYSICIAN ASSI prescribe more brand-name or generic drugs?
Karyn Barringer, PA-C (PHYSICIAN ASSI's prescribing is 33% brand-name and 68% generic drugs by claim count, with $134K in brand drug costs.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does Karyn Barringer, PA-C (PHYSICIAN ASSI prescribe most often?
Based on 2023 Medicare Part D data, Karyn Barringer, PA-C (PHYSICIAN ASSI's most frequently prescribed drugs include Vemlidy. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karyn Barringer, PA-C (PHYSICIAN ASSI accept Medicare?
Karyn Barringer, PA-C (PHYSICIAN ASSI appears in CMS Medicare data with 80 Part D claims and 36 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karyn Barringer, PA-C (PHYSICIAN ASSI's credentials?
Karyn Barringer, PA-C (PHYSICIAN ASSI's NPI is 1669721536 with credentials PA-C (PHYSICIAN ASSI. 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

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.