Timothy Marshall, MD
NPI 1508494287 · Pediatric Gastroenterology Physician · Charleston, SC
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Marshall, MD is a Pediatric Gastroenterology Physician provider in Charleston, SC (NPI 1508494287).
Provider details
- NPI number
- 1508494287
- Entity type
- Individual
- Primary specialty
- Pediatric Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 125.077140 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$248 across 2 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
Additional practice locations (1)
- 1675 Dempster StPark Ridge, IL 60068-1110Phone: (847) 318-9300
Registry dates
- Enumerated
- 2020-03-30
- Last updated
- 2023-05-09
- Certified
- 2023-05-09
Frequently asked questions
- What is Timothy Marshall's NPI number?
- Timothy Marshall's National Provider Identifier (NPI) is 1508494287, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Marshall's specialty?
- Timothy Marshall is listed in the NPPES registry with a primary specialty of Pediatric Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Marshall located?
- Timothy Marshall's practice location on file with NPPES is 169 Ashley Ave Rm 202, Charleston, SC 29425-1110.
- What is Timothy Marshall's phone number?
- The practice phone number listed in the NPPES registry for Timothy Marshall is (843) 792-0269.
- Does Timothy Marshall accept Medicare?
- Timothy Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Marshall's NPI active?
- Yes — Timothy Marshall's NPI (1508494287) is active in the NPPES registry as of the last update on 2023-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.