2026 NPPES data Physician Assistant NPI 1700428117 PA-C
Verify on CMS →

SEAN MILLIGAN, PA-C

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
73
Medicare Part D claims · 31 beneficiaries · Physician Assistant avg: 790
MIPS score
93.5088/100
▲ 10 pts above national avg 83.1 · [object Object]

What the federal data shows

SEAN MILLIGAN, PA-C reported a CMS MIPS final score of 93.5088/100 — above the 83.1 national average — and filed 73 Medicare Part D claims in 2023.

93.5088/100
MIPS score · +10 vs avg
73
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.

SEAN MILLIGAN, PA-C's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

94 Top 29% higher than 71% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about SEAN MILLIGAN, PA-C?

High performer (top quartile)

NPI registry status

Active

Issued 10/17/2019

NPI 1700428117

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

73 91% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

93.5088/100 10.4088% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Virginia

How Physician Assistant compares to other specialties among Virginia providers

Virginia providers

Physician Assistant share within Virginia

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

Medicare quality performance — MIPS

SEAN MILLIGAN, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average

High performer (top quartile)
MIPS Final Score
93.5088/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 93.5088/100 vs national avg 83.1

0%100%National avg83%93.5%
MIPS final score (Physician Assistant) — 93.5088/100 vs national avg 83.1

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).

SEAN MILLIGAN, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 5544 GREENWICH RD STE 200, VIRGINIA BEACH, VA, 23462, with a listed phone of (757) 466-0089. NPI 1700428117 was issued on 10/17/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MILLIGAN 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 73 prescription claims written by this provider, covering 31 Medicare beneficiaries and totaling roughly $398 in drug spend, with an opioid prescribing rate of 31.5%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.5088/100 for the 2023 performance year (Quality 97.1588, Cost 83.5714), compared with the national average of 83.1.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

5544 GREENWICH RD STE 200
VIRGINIA BEACH, VA 23462

Provider Details

NPI 1700428117
Specialty Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 10/17/2019

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

93.5088
Final Score
Avg: 83.1
97.1588
Quality
83.5714
Cost

Reporting: Group practice

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

73
Total Claims
$398
Total Drug Cost
31
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
73
Total Day Supply
410
Generic Drug Cost
$390
Opioid Claims
23 (31.5% rate)
Antibiotic Claims
19

Patient Demographics

Average Patient Age
75.2 years
Avg HCC Risk Score
1.79

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
13

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

Physician Assistant Overview

How SEAN MILLIGAN, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

SEAN MILLIGAN, PA-C's 73 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Virginia

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

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

Frequently Asked Questions

What is SEAN MILLIGAN, PA-C's specialty?
SEAN MILLIGAN, PA-C specializes in Physician Assistant and practices in VIRGINIA BEACH, Virginia. Credentials: PA-C.
How much does SEAN MILLIGAN, PA-C prescribe under Medicare Part D?
In 2023, SEAN MILLIGAN, PA-C wrote 73 Medicare Part D claims totaling $398 in drug costs for 31 beneficiaries.
What is SEAN MILLIGAN, PA-C's Medicare quality score?
SEAN MILLIGAN, PA-C has a CMS MIPS Final Score of 93.5088/100 (Quality: 97.1588, Cost: 83.5714). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SEAN MILLIGAN, PA-C located?
SEAN MILLIGAN, PA-C is located at 5544 GREENWICH RD STE 200, VIRGINIA BEACH, VA, 23462. Phone: (757) 466-0089.
What is SEAN MILLIGAN, PA-C's NPI number?
SEAN MILLIGAN, PA-C's National Provider Identifier (NPI) is 1700428117, issued on 10/17/2019.
Does SEAN MILLIGAN, PA-C prescribe opioids?
Yes, SEAN MILLIGAN, PA-C had 23 opioid claims in 2023 with an opioid prescribing rate of 31.5%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does SEAN MILLIGAN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, SEAN MILLIGAN, PA-C's most frequently prescribed drugs include Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SEAN MILLIGAN, PA-C accept Medicare?
SEAN MILLIGAN, PA-C appears in CMS Medicare data with 73 Part D claims and 31 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SEAN MILLIGAN, PA-C's credentials?
SEAN MILLIGAN, PA-C's NPI is 1700428117 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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