Active NPI 1538314695 Individual Practitioner Male Practitioner

Dr. Leonard Hart Armstrong , MD

Surgery • Saint Paul, MN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Leonard Armstrong, MD is a certified Surgery practicing in Saint Paul, MN. With approximately 20 years of clinical experience since graduating from Washington University School Of Medicine in 2006, Dr. Armstrong delivers high-quality medical care to the local community at 401 PHALEN BLVD.

Dr. Armstrong is affiliated with Group Health Plan Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito, biopsy of large bowel using an endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

401 Phalen Blvd

Saint Paul, MN 551305302

Telephone 6512547980

Fax 6512547969

Associated Practice Facility / Clinic

🏢 Regions Hospital Facility NPI 1134157092

Medicare Profile & Education

Medical School

Washington University School Of Medicine

Graduation Year

2006

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Saint Paul, MN

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

20 Yrs +2.9 yrs vs City Avg

City Avg: 17.1 Yrs

State Avg: 23.0 Yrs

Regional Practice Density

47 Specialists

Practicing in Saint Paul, MN (770 Statewide)

Telehealth Adoption Rate

8.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

78.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Armstrong (20 Years) 20 Yrs

Saint Paul Specialty Average (17.1 Years) 17.1 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	115	114	$169.43	$5.09
45380 Biopsy of large bowel using an endoscope	106	105	$1332.13	$96.94
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	64	63	$1386.13	$236.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$101.00	$77.55
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$165.00	$126.31
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	16	$44.00	$33.49
99231 Follow-up hospital inpatient care per day, typically 15 minutes	16	11	$135.38	$46.78
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	15	15	$137.67	$92.40
99213 Established patient office or other outpatient visit, typically 15 minutes	11	11	$82.00	$62.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	123	122	$165.39	$5.08
45380 Biopsy of large bowel using an endoscope	86	85	$1299.31	$105.96
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	68	67	$1349.41	$239.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$101.00	$80.15
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$165.00	$129.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	17	$121.00	$95.31
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	17	17	$1012.53	$171.49
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	15	$44.00	$34.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	112	112	$163.00	$5.15
45380 Biopsy of large bowel using an endoscope	74	74	$1250.43	$105.84
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	53	53	$1303.40	$244.66
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	47	47	$170.91	$132.44
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	41	41	$101.00	$81.11
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	17	$121.00	$92.29
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	18	18	$976.67	$174.50
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	14	$44.00	$35.38
99213 Established patient office or other outpatient visit, typically 15 minutes	13	13	$82.00	$65.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	115	115	$161.53	$5.24
45380 Biopsy of large bowel using an endoscope	77	77	$1195.91	$129.12
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	45	45	$1278.20	$250.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	44	44	$154.77	$134.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	39	39	$93.10	$82.18
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	14	$40.45	$34.76
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	22	22	$948.73	$182.44
99213 Established patient office or other outpatient visit, typically 15 minutes	17	16	$80.24	$66.69
46221 Removal of external hemorrhoids by rubber banding	16	15	$261.13	$194.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$113.58	$97.27
44205 Partial removal of small and large bowel with attachment of small and large bowel using an endoscope	11	11	$3850.27	$1288.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	119	118	$159.82	$5.45
45380 Biopsy of large bowel using an endoscope	69	68	$1164.00	$124.16
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	49	48	$1273.00	$258.18
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	44	44	$147.00	$129.10
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$87.00	$75.41
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	27	22	$90.00	$79.05
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	20	20	$946.00	$182.93
99213 Established patient office or other outpatient visit, typically 15 minutes	11	11	$58.00	$51.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	120	119	$152.50	$5.38
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	49	49	$1273.00	$246.58
45380 Biopsy of large bowel using an endoscope	47	46	$1164.00	$135.64
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$87.00	$74.98
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	37	37	$147.00	$124.22
46600 Diagnostic examination of the anus using an endoscope	35	35	$47.00	$40.93
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	20	20	$946.00	$181.86
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	13	13	$946.00	$179.54

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	122	119	$146.52	$5.15
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	50	49	$1273.00	$240.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	41	41	$147.00	$122.29
45380 Biopsy of large bowel using an endoscope	38	38	$1164.00	$124.64
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$87.00	$72.20
46600 Diagnostic examination of the anus using an endoscope	32	32	$47.00	$39.47
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	24	24	$946.00	$168.35
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	22	22	$946.00	$174.70

Medical Specialties & State Licenses

CMS Verified: 2025-01-28

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License MN 51319

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Hospital & Practice Group Affiliations

Group Health Plan Inc

401 Phalen Blvd, Saint Paul, MN 551305302

Phone: 6512547400

Secondary Practice Locations

701 Dellwood St S

Cambridge, MN 550081920

Phone: 7636897700

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

30 Associated Practitioners

Dr. Brian Myer , MD

Surgery - Trauma Surgery

NPI 1003115783

Doctor of Medicine (M.D.)

Dr. Sarah Storrs , MD

Surgery

NPI 1013178300

Doctor of Medicine (M.D.)

Samantha Delacey

Physician Assistant

NPI 1013663012

Kelsey Reif , PA-C

Physician Assistant

NPI 1033662507

Physician Assistant (Certified)

Dr. Kelsey Berndt , MD

Surgery

NPI 1083930515

Doctor of Medicine (M.D.)

Dakota Disher , PA

Physician Assistant

NPI 1124772264

Physician Assistant

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events

📍

Updated Practice Location January 28, 2025

Registered at 401 PHALEN BLVD, SAINT PAUL, MN 551305302 (Tel: 6512547980)

📍

Updated Business Mailing Address January 28, 2025

Registered at 8170 33RD AVE S # MS 21110Q, BLOOMINGTON, MN 554254516

✅

NPI Profile Active December 29, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location December 29, 2015

Registered at 701 DELLWOOD ST S, CAMBRIDGE, MN 550081920 (Tel: 7636897700)

📍

Updated Business Mailing Address December 29, 2015

Registered at 2925 CHICAGO AVE, MINNEAPOLIS, MN 554071321 (Tel: 6122625000)

👤

Provider Name / Credentials Updated December 29, 2015

Recorded as LEONARD ARMSTRONG, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 29, 2015

Surgery (License #51319 in MN)

🟢

Initial NPI Registration & Enumeration November 17, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1538314695

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: November 17, 2008

Last Update: January 28, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

8170 33rd Ave S # Ms 21110q

Bloomington, MN 554254516

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.