2026 NPPES data Internal Medicine Physician NPI 1659581122 M.D
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CHARLES WADEE, M.D

Internal Medicine Physician in ANDERSON, South 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
7K
Medicare Part D claims · 221 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$21.06
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHARLES WADEE, M.D filed 7,070 Medicare Part D claims in 2023 as a Internal Medicine Physician in ANDERSON, South Carolina, prescribing 91% generic.

7K
Part D claims, 2023
91%
generic prescribing
$21.06
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.

CHARLES WADEE, M.D's Medicare Part D volume vs every U.S. prescriber

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

7,070 Top 4% higher than 96% 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%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

Board-eligible specialty (heuristic — not verified)

CHARLES WADEE, M.D practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

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

Quality data not reported

NPI registry status

Active

Issued 05/23/2007

NPI 1659581122

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

7,070 160% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in South Carolina

How Internal Medicine Physician compares to other specialties among South Carolina providers

South Carolina providers

Internal Medicine Physician share within South Carolina

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within South Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — 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).

CHARLES WADEE, M.D appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D credentials at 1403 EAST GREENVILLE STREET, ANDERSON, SC, 29621, with a listed phone of (864) 261-6000. NPI 1659581122 was issued on 05/23/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WADEE 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 7,070 prescription claims written by this provider, covering 221 Medicare beneficiaries and totaling roughly $666K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 13.6%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

1403 EAST GREENVILLE STREET
ANDERSON, SC 29621

Provider Details

NPI 1659581122
Specialty Internal Medicine Physician
Credentials M.D
Gender Male
NPI Issued 05/23/2007

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 CHARLES WADEE, M.D. Source: openpaymentsdata.cms.gov.

Total received

$21

Largest payer

Sumitomo Pharma America, 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

CHARLES WADEE, M.D — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 7,070 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.

7,070
Total Claims
$666K
Total Drug Cost
221
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,004
Total Day Supply
315,091
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$520K
Generic Drug Cost
$145K
Opioid Claims
965 (13.6% rate)
Antibiotic Claims
286

Patient Demographics

Average Patient Age
64.5 years
Avg HCC Risk Score
1.75
Gender Split
55% female / 45% male
Age Distribution
<65: 96, 65-74: 75, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What CHARLES WADEE, 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
709
Gabapentin
322
Clonazepam
285
Atorvastatin Calcium
264
Alprazolam
164
Levothyroxine Sodium
154
Duloxetine Hcl
143
Losartan Potassium
129
Levofloxacin
124
Pregabalin
120

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

Internal Medicine Physician Overview

How CHARLES WADEE, M.D fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

CHARLES WADEE, M.D's 7,070 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in South Carolina

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHARLES WADEE, M.D's specialty?
CHARLES WADEE, M.D specializes in Internal Medicine Physician and practices in ANDERSON, South Carolina. Credentials: M.D.
How much does CHARLES WADEE, M.D prescribe under Medicare Part D?
In 2023, CHARLES WADEE, M.D wrote 7,070 Medicare Part D claims totaling $666K in drug costs for 221 beneficiaries.
Where is CHARLES WADEE, M.D located?
CHARLES WADEE, M.D is located at 1403 EAST GREENVILLE STREET, ANDERSON, SC, 29621. Phone: (864) 261-6000.
What is CHARLES WADEE, M.D's NPI number?
CHARLES WADEE, M.D's National Provider Identifier (NPI) is 1659581122, issued on 05/23/2007.
Does CHARLES WADEE, M.D prescribe more brand-name or generic drugs?
CHARLES WADEE, M.D's prescribing is 9% brand-name and 91% generic drugs by claim count, with $520K in brand drug costs.
Does CHARLES WADEE, M.D prescribe opioids?
Yes, CHARLES WADEE, M.D had 965 opioid claims in 2023 with an opioid prescribing rate of 13.6%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does CHARLES WADEE, M.D prescribe most often?
Based on 2023 Medicare Part D data, CHARLES WADEE, M.D's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Gabapentin, Clonazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHARLES WADEE, M.D accept Medicare?
CHARLES WADEE, M.D appears in CMS Medicare data with 7,070 Part D claims and 221 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHARLES WADEE, M.D's credentials?
CHARLES WADEE, M.D's NPI is 1659581122 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.
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