Samuel J Listi & Margaret a Sowada
NPI 1417071903 · Internal Medicine Physician · Dallas, TX
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel J Listi & Margaret a Sowada is a Internal Medicine Physician organization in Dallas, TX (NPI 1417071903).
Provider details
- NPI number
- 1417071903
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Margaret Sowada, General Partner(972) 247-8391
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-19
- Last updated
- 2020-08-22
Frequently asked questions
- What is Samuel J Listi & Margaret a Sowada's NPI number?
- Samuel J Listi & Margaret a Sowada's National Provider Identifier (NPI) is 1417071903, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Samuel J Listi & Margaret a Sowada?
- Samuel J Listi & Margaret a Sowada is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Samuel J Listi & Margaret a Sowada located?
- Samuel J Listi & Margaret a Sowada's practice location on file with NPPES is 5909 Harry Hines Blvd, Dallas, TX 75235-6209.
- What is Samuel J Listi & Margaret a Sowada's phone number?
- The practice phone number listed in the NPPES registry for Samuel J Listi & Margaret a Sowada is (972) 247-8391.
- Does Samuel J Listi & Margaret a Sowada accept Medicare?
- Samuel J Listi & Margaret a Sowada is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Samuel J Listi & Margaret a Sowada?
- The authorized official listed on Samuel J Listi & Margaret a Sowada's NPPES record is Margaret Sowada, General Partner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Samuel J Listi & Margaret a Sowada's NPI active?
- Yes — Samuel J Listi & Margaret a Sowada's NPI (1417071903) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.