Physician Profile
Unclaimed ProfileAbout ARMSTRONG
John Gary Armstrong, M.D. practises general surgery in Storm Lake, IA. John is a 2011 graduate of University of Iowa, Rj & L Carver College of Medicine. John is also listed as specialising in surgery.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Armstrong specialise in?
Dr. Armstrong is a general surgeon in Storm Lake, IA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GENERAL SURGERY”.
NPI registry
Where is Dr. Armstrong located?
Dr. Armstrong is listed at 210 EAST 5TH ST, Storm Lake, IA 50588. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Armstrong's phone number?
The number on file is (712) 213-4750. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Armstrong's NPI number?
Dr. Armstrong's National Provider Identifier is 1487948824. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Armstrong go to medical school?
Dr. Armstrong attended University of Iowa, Rj & L Carver College of Medicine, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Armstrong been practising?
Dr. Armstrong has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Armstrong do most often?
According to Medicare billing data, Dr. Armstrong performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of large bowel using a flexible endoscope and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Armstrong confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Armstrong. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (712) 213-4750
- Email not available
Practice Locations
210 EAST 5TH ST
Storm Lake, IA 50588
Procedures Most Often Billed to Medicare
180 services · 176 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
51 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
40 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
30 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
17 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
15 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
14 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Trained at University of Iowa, Rj & L Carver College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at University of Iowa, Rj & L Carver College of Medicine 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in IA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.