2026 NPPES data Medical Physician Assistant NPI 1881738144 PA-C
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KAREN PATTERSON, PA-C

Medical Physician Assistant in VIRGINIA BEACH, Virginia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 381 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$884.62
49 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KAREN PATTERSON, PA-C filed 1,410 Medicare Part D claims in 2023 as a Medical Physician Assistant in VIRGINIA BEACH, Virginia, prescribing 92% generic.

1K
Part D claims, 2023
92%
generic prescribing
$884.62
industry payments (Sunshine Act)

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.

KAREN PATTERSON, PA-C's Medicare Part D volume vs every U.S. prescriber

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

1,410 Top 20% higher than 80% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 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 KAREN PATTERSON, PA-C?

Quality data not reported

NPI registry status

Active

Issued 02/19/2007

NPI 1881738144

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

1,410 31% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Virginia

How Medical Physician Assistant compares to other specialties among Virginia providers

Virginia providers

Medical Physician Assistant share within Virginia

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Virginia

Specialty board-certification context

Estimated specialty board-certified rate — Medical Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

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).

KAREN PATTERSON, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 351 EDWIN DR, VIRGINIA BEACH, VA, 23462, with a listed phone of (757) 499-5550. NPI 1881738144 was issued on 02/19/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PATTERSON 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 1,410 prescription claims written by this provider, covering 381 Medicare beneficiaries and totaling roughly $82K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 2.0%. 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

351 EDWIN DR
VIRGINIA BEACH, VA 23462

Provider Details

NPI 1881738144
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 02/19/2007

Hospital and facility affiliations

Facilities where KAREN PATTERSON, PA-C 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.

TIDEWATER PHYSICIANS MULTISPECIALTY GROUP PC
NEWPORT NEWS, VA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for KAREN PATTERSON, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$885

Largest payer

ABBVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

KAREN PATTERSON, PA-C — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 1,410 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.

1,410
Total Claims
$82K
Total Drug Cost
381
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,678
Total Day Supply
73,012
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$57K
Generic Drug Cost
$24K
Opioid Claims
28 (2.0% rate)
Antibiotic Claims
123

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.13
Gender Split
64% female / 36% male
Age Distribution
<65: 25, 65-74: 187, 75-84: 139, 85+: 30

Top Prescribed Drugs (Medicare Part D)

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

What KAREN PATTERSON, PA-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
94
Amlodipine Besylate
64
Albuterol Sulfate Hfa
Albuterol Sulfate
58
Lisinopril
41
Prednisone
40
Doxycycline Hyclate
38
Losartan Potassium
38
Rosuvastatin Calcium
37
Gabapentin
36
Meloxicam
29

* 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 KAREN PATTERSON, PA-C 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

KAREN PATTERSON, PA-C's 1,410 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Virginia

Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as PATTERSON.

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is KAREN PATTERSON, PA-C's specialty?
KAREN PATTERSON, PA-C specializes in Medical Physician Assistant and practices in VIRGINIA BEACH, Virginia. Credentials: PA-C.
How much does KAREN PATTERSON, PA-C prescribe under Medicare Part D?
In 2023, KAREN PATTERSON, PA-C wrote 1,410 Medicare Part D claims totaling $82K in drug costs for 381 beneficiaries.
Where is KAREN PATTERSON, PA-C located?
KAREN PATTERSON, PA-C is located at 351 EDWIN DR, VIRGINIA BEACH, VA, 23462. Phone: (757) 499-5550.
What is KAREN PATTERSON, PA-C's NPI number?
KAREN PATTERSON, PA-C's National Provider Identifier (NPI) is 1881738144, issued on 02/19/2007.
Does KAREN PATTERSON, PA-C prescribe more brand-name or generic drugs?
KAREN PATTERSON, PA-C's prescribing is 8% brand-name and 92% generic drugs by claim count, with $57K in brand drug costs.
Does KAREN PATTERSON, PA-C prescribe opioids?
Yes, KAREN PATTERSON, PA-C had 28 opioid claims in 2023 with an opioid prescribing rate of 2.0%.
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 KAREN PATTERSON, PA-C prescribe most often?
Based on 2023 Medicare Part D data, KAREN PATTERSON, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KAREN PATTERSON, PA-C accept Medicare?
KAREN PATTERSON, PA-C appears in CMS Medicare data with 1,410 Part D claims and 381 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KAREN PATTERSON, PA-C's credentials?
KAREN PATTERSON, PA-C's NPI is 1881738144 with credentials PA-C. 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