2026 NPPES data Gastroenterology Physician NPI 1801890314 M.D.
Verify on CMS →

Charles Wong, M.D.

Gastroenterology Physician in Portsmouth, Ohio. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,567 in Gastroenterology Physician, 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
819
Medicare Part D claims · 500 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
82.9/100
▼ 0 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Charles Wong, M.D. reported a CMS MIPS final score of 82.9/100 - below the 83.1 national average - and filed 819 Medicare Part D claims in 2023.

82.9/100
MIPS score · 0 vs avg
819
Part D claims, 2023
88%
generic prescribing
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 Wong, 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

83 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+: 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

Where Charles Wong, M.D. sits

This provider among gastroenterology physician peers

Across the 5,957 gastroenterology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Charles Wong, M.D. writes more Part D claims than 51% of them and scores higher on MIPS quality than 47% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 0Charles Wong, M.D.-Part D claim volume, percentile in specialty: 51 · MIPS quality, percentile: 47
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one gastroenterology physician peer from a representative sample of 60; the gold marker is Charles Wong, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Charles Wong, 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 Wong, M.D.?

Near national average

NPI registry status

Active

Issued 06/13/2005

NPI 1801890314

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

819 2% vs specialty avg

2023 prescription claims

Specialty avg: 833

MIPS final score

82.9/100 0.2 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Ohio

How Gastroenterology Physician compares to other specialties among Ohio providers

Ohio providers

Largest specialties in Ohio (% of in-state providers)

Case Manager/Care Coordinator - 10.9%Case Manager/Care Coordinator10.9%Student in an Organized Health Care Education/Training Program - 4.7%Student in an Organized Health Care Education/Training Program4.7%Licensed Practical Nurse - 4%Licensed Practical Nurse4%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Registered Nurse - 3.4%Registered Nurse3.4%Pharmacist - 3.4%Pharmacist3.4%Gastroenterology Physician - 0.2%Gastroenterology Physician0.2%
Largest specialties in Ohio (% of in-state providers)

Medicare quality performance, MIPS

Charles Wong, M.D.'s 2023 MIPS final score plotted against the Gastroenterology Physician national average

Near national average
MIPS Final Score
82.9/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gastroenterology Physician) - 82.9/100 vs national avg 83.1

0%100%National avg83%82.9%
MIPS final score (Gastroenterology Physician) - 82.9/100 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 Wong, M.D. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding M.D. credentials at 1729 KINNEYS LANE, Portsmouth, OH, 45662, with a listed phone of (740) 354-2942. NPI 1801890314 was issued on 06/13/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Wong 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 819 prescription claims written by this provider, covering 500 Medicare beneficiaries and totaling roughly $53K in drug spend, split 12% brand-name and 88% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 82.9/100 for the 2023 performance year (Quality 70, Cost 65.6), compared with the national average of 83.1.

Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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

1729 KINNEYS LANE
Portsmouth, OH 45662

Provider Details

NPI 1801890314
Specialty Gastroenterology Physician
Credentials M.D.
Gender Male
NPI Issued 06/13/2005

CMS Quality Score (MIPS)

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

82.9435
Final Score
Avg: 83.1
70.0105
Quality
65.5754
Cost
100
Promoting Interoperability

Reporting: Group practice

License & disciplinary context - Ohio OMB 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to Charles Wong, M.D.. To verify Charles Wong, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Charles Wong, M.D. - brand share 12.0%
Gastroenterology Physician average

12% brand-name claims vs 88% generic, on 819 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.

819
Total Claims
$53K
Total Drug Cost
500
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,301
Total Day Supply
26,903
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$14K
Generic Drug Cost
$40K
Antibiotic Claims
20

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.12
Gender Split
54% female / 46% male
Age Distribution
<65: 57, 65-74: 284, 75-84: 147, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

What Charles Wong, 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
Famotidine
86
Omeprazole
85
Sucralfate
61
Pantoprazole Sodium
45
Balsalazide Disodium
27
Peg 3350-Electrolyte
Sodium Chloride/Nahco3/Kcl/Peg
22
Sulfasalazine
20
Linzess
Linaclotide
11
Gavilyte-G
"Peg3350/Sod Sulf
N/A
Peg-3350 And Electrolytes
"Peg3350/Sod Sulf
N/A

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

Gastroenterology Physician Overview

How Charles Wong, M.D. fits within the Gastroenterology Physician landscape nationally.

16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider

Charles Wong, M.D.'s 819 claims are below the specialty average of 833.

Nearby Gastroenterology Physician Providers in Ohio

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

Compare Gastroenterology Physician 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 Ohio medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Gastroenterology Physician 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 Charles Wong, M.D.'s specialty?
Charles Wong, M.D. specializes in Gastroenterology Physician and practices in Portsmouth, Ohio. Credentials: M.D..
How much does Charles Wong, M.D. prescribe under Medicare Part D?
In 2023, Charles Wong, M.D. wrote 819 Medicare Part D claims totaling $53K in drug costs for 500 beneficiaries.
What is Charles Wong, M.D.'s Medicare quality score?
Charles Wong, M.D. has a CMS MIPS Final Score of 82.9/100 (Quality: 70, Cost: 65.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Charles Wong, M.D. located?
Charles Wong, M.D. is located at 1729 KINNEYS LANE, Portsmouth, OH, 45662. Phone: (740) 354-2942.
What is Charles Wong, M.D.'s NPI number?
Charles Wong, M.D.'s National Provider Identifier (NPI) is 1801890314, issued on 06/13/2005.
Does Charles Wong, M.D. prescribe more brand-name or generic drugs?
Charles Wong, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $14K in brand drug costs.
How many Gastroenterology Physician providers are there in the US?
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does Charles Wong, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Charles Wong, M.D.'s most frequently prescribed drugs include Famotidine, Omeprazole, Sucralfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charles Wong, M.D. accept Medicare?
Charles Wong, M.D. appears in CMS Medicare data with 819 Part D claims and 500 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Wong, M.D.'s credentials?
Charles Wong, M.D.'s NPI is 1801890314 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

Compiled from official public sources by the PlainDoctor editorial team.