Ryan Westergaard, MD
NPI 1255423737 · Infectious Disease Physician · Madison, WI
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Westergaard, MD is a Infectious Disease Physician provider in Madison, WI (NPI 1255423737).
Provider details
- NPI number
- 1255423737
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 55727 (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
20 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Varicella-Zoster Ge/As01b/Pfbrand: Shingrix | 36 | 35 |
| Raltegravir Potassiumbrand: Isentress | 21 | — |
| Darunavir/Cobicistatbrand: Prezcobix | 19 | — |
| Dolutegravir/Rilpivirinebrand: Juluca | 17 | — |
| Bupropion Hclbrand: Bupropion Hcl Sr | 15 | — |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 15 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-29
- Last updated
- 2021-03-30
- Certified
- 2021-03-30
Frequently asked questions
- What is Ryan Westergaard's NPI number?
- Ryan Westergaard's National Provider Identifier (NPI) is 1255423737, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Westergaard's specialty?
- Ryan Westergaard is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Westergaard located?
- Ryan Westergaard's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-0001.
- What is Ryan Westergaard's phone number?
- The practice phone number listed in the NPPES registry for Ryan Westergaard is (608) 263-0946.
- Does Ryan Westergaard accept Medicare?
- Ryan Westergaard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Westergaard's NPI active?
- Yes — Ryan Westergaard's NPI (1255423737) is active in the NPPES registry as of the last update on 2021-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.