Ly DO, MD
NPI 1689363954 · Internal Medicine Physician · Madison, WI
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ly DO, MD is a Internal Medicine Physician provider in Madison, WI (NPI 1689363954).
Provider details
- NPI number
- 1689363954
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 87146-20 (WI)
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
3 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
- 2023-05-03
- Last updated
- 2026-03-17
- Certified
- 2026-03-17
Frequently asked questions
- What is Ly DO's NPI number?
- Ly DO's National Provider Identifier (NPI) is 1689363954, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ly DO's specialty?
- Ly DO is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ly DO located?
- Ly DO's practice location on file with NPPES is 749 University Row Ste 200, Madison, WI 53705-1465.
- What is Ly DO's phone number?
- The practice phone number listed in the NPPES registry for Ly DO is (608) 263-6400.
- Does Ly DO accept Medicare?
- Ly DO is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ly DO's NPI active?
- Yes — Ly DO's NPI (1689363954) is active in the NPPES registry as of the last update on 2026-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.