Theresa Welgs
NPI 1689091928 · Neonatal-Perinatal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theresa Welgs is a Neonatal-Perinatal Medicine Physician provider in Boston, MA (NPI 1689091928).
Provider details
- NPI number
- 1689091928
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- MD461258 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 160 E Erie AvePhiladelphia, PA 19134Phone: (215) 427-5151
Registry dates
- Enumerated
- 2014-03-25
- Last updated
- 2021-05-04
- Certified
- 2021-05-04
Frequently asked questions
- What is Theresa Welgs's NPI number?
- Theresa Welgs's National Provider Identifier (NPI) is 1689091928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa Welgs's specialty?
- Theresa Welgs is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Theresa Welgs located?
- Theresa Welgs's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Theresa Welgs's phone number?
- The practice phone number listed in the NPPES registry for Theresa Welgs is (617) 355-6000.
- Does Theresa Welgs accept Medicare?
- Theresa Welgs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theresa Welgs's NPI active?
- Yes — Theresa Welgs's NPI (1689091928) is active in the NPPES registry as of the last update on 2021-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.