Lewis Lo, MD
NPI 1104110535 · Obstetrics & Gynecology Physician · Exton, PA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lewis Lo, MD is a Obstetrics & Gynecology Physician provider in Exton, PA (NPI 1104110535).
Provider details
- NPI number
- 1104110535
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology 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 tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2011-06-02
- Last updated
- 2020-11-12
- Certified
- 2020-11-12
Frequently asked questions
- What is Lewis Lo's NPI number?
- Lewis Lo's National Provider Identifier (NPI) is 1104110535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lewis Lo's specialty?
- Lewis Lo is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Lewis Lo located?
- Lewis Lo's practice location on file with NPPES is 728 W Lincoln Hwy Fl 2, Exton, PA 19341-2547.
- What is Lewis Lo's phone number?
- The practice phone number listed in the NPPES registry for Lewis Lo is (610) 903-6200.
- Does Lewis Lo accept Medicare?
- Lewis Lo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lewis Lo's NPI active?
- Yes — Lewis Lo's NPI (1104110535) is active in the NPPES registry as of the last update on 2020-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.