Charles Welden, MD
NPI 1578950705 · Internal Medicine Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Welden, MD is a Internal Medicine Physician provider in Charleston, SC (NPI 1578950705).
Provider details
- NPI number
- 1578950705
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
688 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 109 | $60 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 98 | $222 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 77 | $44 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 76 | $54 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 69 | $115 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 301 | 130 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 134 | 130 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 95 | 91 |
| Omeprazole | 90 | 38 |
| Famotidine | 74 | 23 |
| Sucralfate | 71 | 27 |
| Colestipol Hcl | 68 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,503 across 101 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-27
- Last updated
- 2018-12-10
Frequently asked questions
- What is Charles Welden's NPI number?
- Charles Welden's National Provider Identifier (NPI) is 1578950705, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Welden's specialty?
- Charles Welden is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Welden located?
- Charles Welden's practice location on file with NPPES is 114 Doughty St Ste 249, Charleston, SC 29425-1900.
- What is Charles Welden's phone number?
- The practice phone number listed in the NPPES registry for Charles Welden is (843) 792-2301.
- Does Charles Welden accept Medicare?
- Charles Welden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Welden's NPI active?
- Yes — Charles Welden's NPI (1578950705) is active in the NPPES registry as of the last update on 2018-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.