William Armstrong, MD
NPI 1073570099 · Internal Medicine Physician · Saint Paul, MN
William Armstrong, MD is a Internal Medicine Physician provider in Saint Paul, MN (NPI 1073570099).
Provider details
- NPI number
- 1073570099
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 25598 (MN)
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Armstrong's NPI number?
- William Armstrong's National Provider Identifier (NPI) is 1073570099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Armstrong's specialty?
- William Armstrong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Armstrong located?
- William Armstrong's practice location on file with NPPES is 17 Exchange St W, Saint Paul, MN 55102-1045.
- What is William Armstrong's phone number?
- The practice phone number listed in the NPPES registry for William Armstrong is (651) 232-4200.
- Is William Armstrong's NPI active?
- Yes — William Armstrong's NPI (1073570099) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.