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John Armstrong, M.D.
NPI 1831169697 · Pulmonary Disease Physician · Lansing, MI
John Armstrong, M.D. is a Pulmonary Disease Physician provider in Lansing, MI (NPI 1831169697).
Provider details
- NPI number
- 1831169697
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5101038171 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
1200 E Michigan Ave
Suite 415
Lansing, MI 48912-1800
Phone: (517) 484-2760
Fax: (517) 484-3050
Street-level locationGet directions
Mailing address
1200 E Michigan Ave
Lansing, MI 48912-1800
Registry dates
- Enumerated
- 2006-01-25
- Last updated
- 2014-02-12
Frequently asked questions
- What is John Armstrong's NPI number?
- John Armstrong's National Provider Identifier (NPI) is 1831169697, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Armstrong's specialty?
- John Armstrong is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Armstrong located?
- John Armstrong's practice location on file with NPPES is 1200 E Michigan Ave, Lansing, MI 48912-1800.
- What is John Armstrong's phone number?
- The practice phone number listed in the NPPES registry for John Armstrong is (517) 484-2760.
- Is John Armstrong's NPI active?
- Yes — John Armstrong's NPI (1831169697) is active in the NPPES registry as of the last update on 2014-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.