2026 NPPES data Diagnostic Neuroimaging (Psychiatry & Neurology) Physician NPI 1427014497 M.D.
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CHARLES WILLIS, M.D.

Diagnostic Neuroimaging (Psychiatry & Neurology) Physician in GREENSBORO, North Carolina. 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
553
Medicare Part D claims · 180 beneficiaries · Diagnostic Neuroimaging (Psychiatry & Neurology) Physician avg: 1K
MIPS score
82.151/100
▼ 1 pts below national avg 83.1 · [object Object]

What the federal data shows

CHARLES WILLIS, M.D. reported a CMS MIPS final score of 82.151/100 — below the 83.1 national average — and filed 553 Medicare Part D claims in 2023.

82.151/100
MIPS score · -1 vs avg
553
Part D claims, 2023
Likely
board-certified (heuristic)

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.

CHARLES WILLIS, M.D.'s MIPS score vs every scored U.S. clinician

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

82 39th percentile higher than 39% 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%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. 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

Board certification likely (heuristic — not verified)

CHARLES WILLIS, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about CHARLES WILLIS, M.D.?

Near national average

NPI registry status

Active

Issued 04/26/2006

NPI 1427014497

Primary specialty

Diagnostic Neuroimaging (Psychiatry & Neurology) Physician

Rare

30 US NPIs in this specialty

Medicare Part D claims

553 52% vs specialty avg

2023 prescription claims

Specialty avg: 1,149

MIPS final score

82.151/100 0.9489999999999981% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in North Carolina

How Diagnostic Neuroimaging (Psychiatry & Neurology) Physician compares to other specialties among North Carolina providers

North Carolina providers

Diagnostic Neuroimaging (Psychiatry & Neurology) Physician share within North Carolina

1. Diagnostic Neuroimaging (Psychiatry & Neurology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Diagnostic Neuroimaging (Psychiatry & Neurology) Physician share within North Carolina

Medicare quality performance — MIPS

CHARLES WILLIS, M.D.'s 2023 MIPS final score plotted against the Diagnostic Neuroimaging (Psychiatry & Neurology) Physician national average

Near national average
MIPS Final Score
82.151/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Diagnostic Neuroimaging (Psychiatry & Neurology) Physician) — 82.151/100 vs national avg 83.1

0%100%National avg83%82.2%
MIPS final score (Diagnostic Neuroimaging (Psychiatry & Neurology) Physician) — 82.151/100 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).

CHARLES WILLIS, M.D. appears in the CMS NPPES registry as a Diagnostic Neuroimaging (Psychiatry & Neurology) Physician provider holding M.D. credentials at 912 THIRD STREET, GREENSBORO, NC, 27405, with a listed phone of (336) 273-2511. NPI 1427014497 was issued on 04/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIS 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 553 prescription claims written by this provider, covering 180 Medicare beneficiaries and totaling roughly $292K in drug spend. 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 82.151/100 for the 2023 performance year (Quality 83.9281, Cost 72.4087), compared with the national average of 83.1.

Diagnostic Neuroimaging (Psychiatry & Neurology) Physician is a narrow specialty nationwide, with 30 enrolled providers across 16 states and an average of 1,149 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

912 THIRD STREET
GREENSBORO, NC 27405

Provider Details

NPI 1427014497
Specialty Diagnostic Neuroimaging (Psychiatry & Neurology) Physician
Credentials M.D.
Gender Male
NPI Issued 04/26/2006

CMS Quality Score (MIPS)

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

82.151
Final Score
Avg: 83.1
83.9281
Quality
72.4087
Cost
81
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

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

553
Total Claims
$292K
Total Drug Cost
180
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,095
Total Day Supply
32,177
Generic Drug Cost
$30K

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.65
Gender Split
55% female / 45% male
Age Distribution
<65: 44, 65-74: 57, 75-84: 62, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

What CHARLES WILLIS, M.D. 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
Memantine Hcl
34
Carbidopa-Levodopa
Carbidopa/Levodopa
30
Gabapentin
30
Donepezil Hcl
28
Pramipexole Dihydrochloride
Pramipexole Di-Hcl
24
Levetiracetam
23
Topiramate
22
Pregabalin
21
Myrbetriq
Mirabegron
20
Ropinirole Hcl
17

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

Diagnostic Neuroimaging (Psychiatry & Neurology) Physician Overview

How CHARLES WILLIS, M.D. fits within the Diagnostic Neuroimaging (Psychiatry & Neurology) Physician landscape nationally.

30
Diagnostic Neuroimaging (Psychiatry & Neurology) Physician Providers in US
16
States with Diagnostic Neuroimaging (Psychiatry & Neurology) Physician
1,149
Avg Claims per Provider

CHARLES WILLIS, M.D.'s 553 claims are below the specialty average of 1,149.

Nearby Diagnostic Neuroimaging (Psychiatry & Neurology) Physician Providers in North Carolina

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

Compare Diagnostic Neuroimaging (Psychiatry & Neurology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHARLES WILLIS, M.D.'s specialty?
CHARLES WILLIS, M.D. specializes in Diagnostic Neuroimaging (Psychiatry & Neurology) Physician and practices in GREENSBORO, North Carolina. Credentials: M.D..
How much does CHARLES WILLIS, M.D. prescribe under Medicare Part D?
In 2023, CHARLES WILLIS, M.D. wrote 553 Medicare Part D claims totaling $292K in drug costs for 180 beneficiaries.
What is CHARLES WILLIS, M.D.'s Medicare quality score?
CHARLES WILLIS, M.D. has a CMS MIPS Final Score of 82.151/100 (Quality: 83.9281, Cost: 72.4087). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHARLES WILLIS, M.D. located?
CHARLES WILLIS, M.D. is located at 912 THIRD STREET, GREENSBORO, NC, 27405. Phone: (336) 273-2511.
What is CHARLES WILLIS, M.D.'s NPI number?
CHARLES WILLIS, M.D.'s National Provider Identifier (NPI) is 1427014497, issued on 04/26/2006.
How many Diagnostic Neuroimaging (Psychiatry & Neurology) Physician providers are there in the US?
There are 30 Diagnostic Neuroimaging (Psychiatry & Neurology) Physician providers across 16 states in the US. The average Diagnostic Neuroimaging (Psychiatry & Neurology) Physician provider writes 1,149 Medicare Part D claims per year.
What drugs does CHARLES WILLIS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHARLES WILLIS, M.D.'s most frequently prescribed drugs include Memantine Hcl, Carbidopa-Levodopa, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHARLES WILLIS, M.D. accept Medicare?
CHARLES WILLIS, M.D. appears in CMS Medicare data with 553 Part D claims and 180 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHARLES WILLIS, M.D.'s credentials?
CHARLES WILLIS, M.D.'s NPI is 1427014497 with credentials M.D.. 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