Active NPI 1912973058 Individual Practitioner Male Practitioner

Dr. Mark R Johnston , DPM

Podiatrist • Willmar, MN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mark Johnston, DPM is a certified Podiatrist practicing in Willmar, MN. With approximately 46 years of clinical experience since completing medical education in 1980, Dr. Johnston delivers high-quality medical care to the local community at 101 WILLMAR AVE SW.

Dr. Johnston is affiliated with Centracare Clinic Southwest Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include removal of fingernails or toenails, established patient outpatient office visit, trimming of dystrophic nails, any number. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

101 Willmar Ave Sw

Willmar, MN 56201

Telephone 3202315000

Fax 3202315067

Associated Practice Facility / Clinic

🏢 Affiliated Community Medical Centers, Ltd Facility NPI 1952363699

Medicare Profile & Education

Medical School

Other

Graduation Year

1980

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Podiatrist in Willmar, MN

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

46 Yrs +16.0 yrs vs City Avg

City Avg: 30.0 Yrs

State Avg: 22.2 Yrs

Regional Practice Density

3 Specialists

Practicing in Willmar, MN (152 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

70.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Johnston (46 Years) 46 Yrs

Willmar Specialty Average (30.0 Years) 30.0 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
11721 Removal of fingernails or toenails, 6 or more nails	341	184	$160.67	$43.53
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	314	165	$173.13	$54.96
99213 Established patient office or other outpatient visit, typically 15 minutes	157	121	$279.42	$88.15
G0127 Trimming of dystrophic nails, any number	113	61	$85.33	$19.87
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	104	104	$344.60	$107.30
11720 Removal of fingernails or toenails, 1-5 nails	88	60	$116.75	$32.23
99202 New patient office or other outpatient visit, typically 20 minutes	54	54	$229.81	$70.14
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	50	13	$8.15	$0.95
73630 X-ray of foot, minimum of 3 views	48	21	$78.69	$16.88
11056 Removal of noncancer thickened skin growth, 2-4 growths	43	23	$265.09	$81.57
11719 Trimming of fingernails or toenails	39	18	$51.07	$12.06
11055 Removal of single thickened skin growth	37	25	$233.97	$70.79
97597 Removal of tissue from wound, 20.0 sq cm or less	22	16	$352.45	$99.64
20600 Aspiration and/or injection of fluid from small joint	16	12	$205.69	$51.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	12	$392.63	$124.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
11721 Removal of fingernails or toenails, 6 or more nails	341	186	$136.26	$43.60
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	339	200	$162.83	$55.29
99213 Established patient office or other outpatient visit, typically 15 minutes	159	116	$261.15	$88.09
G0127 Trimming of dystrophic nails, any number	115	66	$67.40	$19.41
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	93	93	$323.67	$107.92
73630 X-ray of foot, minimum of 3 views	86	31	$76.47	$17.14
11720 Removal of fingernails or toenails, 1-5 nails	83	53	$94.96	$32.23
99202 New patient office or other outpatient visit, typically 20 minutes	46	46	$215.90	$70.79
11056 Removal of noncancer thickened skin growth, 2-4 growths	44	22	$236.45	$82.80
11055 Removal of single thickened skin growth	44	28	$201.83	$71.16
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	42	11	$13.15	$1.04
11719 Trimming of fingernails or toenails	41	26	$38.46	$11.42

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
11721 Removal of fingernails or toenails, 6 or more nails	326	171	$70.46	$43.97
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	206	131	$139.00	$55.77
99213 Established patient office or other outpatient visit, typically 15 minutes	193	134	$230.75	$89.46
73630 X-ray of foot, minimum of 3 views	82	32	$80.50	$17.62
G0127 Trimming of dystrophic nails, any number	82	52	$30.63	$19.63
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	74	74	$305.83	$109.59
11720 Removal of fingernails or toenails, 1-5 nails	58	39	$60.63	$32.29
11719 Trimming of fingernails or toenails	56	31	$24.86	$12.44
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	44	11	$12.53	$1.15
11055 Removal of single thickened skin growth	35	23	$147.90	$73.87
99202 New patient office or other outpatient visit, typically 20 minutes	32	32	$206.96	$71.93
11056 Removal of noncancer thickened skin growth, 2-4 growths	28	16	$168.50	$84.79
97597 Removal of tissue from wound, 20.0 sq cm or less	23	11	$225.90	$103.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
11721 Removal of fingernails or toenails, 6 or more nails	280	155	$49.40	$45.27
99213 Established patient office or other outpatient visit, typically 15 minutes	227	162	$197.08	$91.80
G0127 Trimming of dystrophic nails, any number	125	64	$26.38	$21.26
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	115	91	$116.23	$56.81
11720 Removal of fingernails or toenails, 1-5 nails	95	65	$42.56	$33.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	88	88	$286.38	$111.46
73630 X-ray of foot, minimum of 3 views	84	32	$90.04	$17.59
99202 New patient office or other outpatient visit, typically 20 minutes	47	47	$194.82	$73.18
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	40	13	$15.77	$1.26
11056 Removal of noncancer thickened skin growth, 2-4 growths	37	17	$145.01	$81.70
11719 Trimming of fingernails or toenails	33	16	$16.27	$13.24
11055 Removal of single thickened skin growth	25	18	$125.76	$70.74
11730 Simple separation of fingernail or toenail from nail bed, first nail	20	17	$311.04	$120.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
11721 Removal of fingernails or toenails, 6 or more nails	208	133	$45.85	$45.89
99213 Established patient office or other outpatient visit, typically 15 minutes	134	99	$173.61	$74.82
11720 Removal of fingernails or toenails, 1-5 nails	94	63	$40.20	$33.16
G0127 Trimming of dystrophic nails, any number	78	49	$24.47	$22.79
99202 New patient office or other outpatient visit, typically 20 minutes	66	66	$176.87	$75.68
73630 X-ray of foot, minimum of 3 views	60	24	$92.55	$16.32
11719 Trimming of fingernails or toenails	60	31	$14.64	$13.07
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	58	51	$103.89	$45.18
97597 Removal of tissue from wound, 20.0 sq cm or less	35	18	$180.65	$99.17
73620 X-ray of foot, 2 views	30	11	$80.90	$14.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$252.34	$106.49
11056 Removal of noncancer thickened skin growth, 2-4 growths	22	11	$136.66	$75.75
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	20	11	$40.35	$7.09
20600 Aspiration and/or injection of fluid from small joint	16	12	$158.40	$56.47
11750 Permanent removal fingernail or toenail	14	12	$717.25	$148.54
11055 Removal of single thickened skin growth	14	12	$114.66	$64.50
99201 New patient office or other outpatient visit, typically 10 minutes	13	13	$106.06	$45.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
11721 Removal of fingernails or toenails, 6 or more nails	297	168	$166.80	$45.51
99213 Established patient office or other outpatient visit, typically 15 minutes	220	150	$145.90	$73.57
11720 Removal of fingernails or toenails, 1-5 nails	150	110	$89.24	$33.35
99202 New patient office or other outpatient visit, typically 20 minutes	113	113	$156.20	$75.44
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	106	82	$95.98	$44.82
11719 Trimming of fingernails or toenails	92	45	$48.27	$12.43
73630 X-ray of foot, minimum of 3 views	86	32	$101.44	$16.58
G0127 Trimming of dystrophic nails, any number	75	53	$92.29	$21.67
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	49	11	$16.58	$1.60
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	48	48	$226.38	$106.40
11055 Removal of single thickened skin growth	40	24	$115.67	$56.83
11056 Removal of noncancer thickened skin growth, 2-4 growths	29	16	$148.63	$66.83
73620 X-ray of foot, 2 views	28	16	$121.35	$20.10
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	25	15	$37.93	$6.68
11750 Permanent removal fingernail or toenail	21	20	$717.25	$150.52
99201 New patient office or other outpatient visit, typically 10 minutes	19	19	$100.91	$45.48
11730 Simple separation of fingernail or toenail from nail bed, first nail	13	13	$287.25	$108.04
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	13	13	$221.65	$106.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
11721 Removal of fingernails or toenails, 6 or more nails	264	146	$258.40	$45.15
99213 Established patient office or other outpatient visit, typically 15 minutes	211	130	$137.30	$71.69
11720 Removal of fingernails or toenails, 1-5 nails	128	86	$143.80	$33.17
G0127 Trimming of dystrophic nails, any number	99	53	$135.05	$22.33
99202 New patient office or other outpatient visit, typically 20 minutes	87	87	$153.40	$73.21
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	71	61	$97.05	$43.37
11719 Trimming of fingernails or toenails	52	28	$86.60	$11.90
J1100 Injection, dexamethasone sodium phosphate, 1 mg	50	12	$0.36	$0.12
11055 Removal of single thickened skin growth	49	29	$143.80	$48.49
97597 Removal of tissue from wound, 20.0 sq cm or less	33	14	$180.65	$84.34
73620 X-ray of foot, 2 views	27	20	$161.80	$25.93
73630 X-ray of foot, minimum of 3 views	27	16	$189.65	$29.26
11056 Removal of noncancer thickened skin growth, 2-4 growths	26	14	$201.30	$58.92
99201 New patient office or other outpatient visit, typically 10 minutes	22	22	$105.25	$43.86
11750 Permanent removal fingernail or toenail	17	14	$717.25	$144.27
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$225.60	$105.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
11721 Removal of fingernails or toenails, 6 or more nails	293	173	$250.85	$44.38
99213 Established patient office or other outpatient visit, typically 15 minutes	228	142	$133.30	$70.76
11720 Removal of fingernails or toenails, 1-5 nails	166	122	$139.60	$32.05
99202 New patient office or other outpatient visit, typically 20 minutes	145	145	$148.90	$72.99
G0127 Trimming of dystrophic nails, any number	122	71	$131.10	$19.99
11719 Trimming of fingernails or toenails	64	33	$84.05	$12.60
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	62	56	$94.20	$42.98
11055 Removal of single thickened skin growth	51	31	$139.60	$47.77
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$219.00	$105.14
11056 Removal of noncancer thickened skin growth, 2-4 growths	30	18	$195.40	$58.20
99201 New patient office or other outpatient visit, typically 10 minutes	27	27	$102.15	$43.14
11750 Permanent removal fingernail or toenail	21	19	$696.35	$148.34
97597 Removal of tissue from wound, 20.0 sq cm or less	20	13	$175.35	$75.66
73620 X-ray of foot, 2 views	20	18	$157.05	$25.70
73630 X-ray of foot, minimum of 3 views	17	15	$184.10	$28.93
11730 Simple separation of fingernail or toenail from nail bed, first nail	12	12	$278.85	$104.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	11	11	$211.40	$105.48

Medical Specialties & State Licenses

Podiatrist Primary Specialty

NUCC Taxonomy Code: 213E00000X

State License MN 546

A podiatrist is a person qualified by a Doctor of Podiatric Medicine (D.P.M.) degree, licensed by the state, and practicing within the scope of that license. Podiatrists diagnose and treat foot diseases and deformities. They perform medical, surgical and other operative procedures, prescribe corrective devices and prescribe and administer drugs and physical therapy.

Hospital & Practice Group Affiliations

Centracare Clinic Southwest Llc

101 Willmar Ave Sw, Willmar, MN 562013556

Phone: 3202315000

Centracare Clinic Southwest Llc

600 Peterson Pkwy, New London, MN 562737823

Phone: 3203542222

Practice Associates & Co-Workers

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

40 Associated Practitioners

Ryan Hebrink , PT

Physical Therapist

NPI 1003077439

Physical Therapist

Amber Johnson , WHNP

Nurse Practitioner

NPI 1003459629

Women's Health Nurse Practitioner

Frances Antkowiak , APNP

Nurse Practitioner

NPI 1003837196

Advanced Practice Nurse Prescriber

Dr. Patricia Daquila , MD

Internal Medicine

NPI 1003863473

Doctor of Medicine (M.D.)

Dr. Todd Stoeberl , AuD

Audiologist

NPI 1013087030

Doctor of Audiology

Dr. Michael Hodapp , MD

Pediatrics

NPI 1013983337

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 101 WILLMAR AVE SW, WILLMAR, MN 56201 (Tel: 3202315000)

📍

Updated Business Mailing Address July 08, 2007

Registered at 101 WILLMAR AVE SW, WILLMAR, MN 56201 (Tel: 3202315000)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as MARK JOHNSTON, DPM

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Podiatrist (License #546 in MN)

🟢

Initial NPI Registration & Enumeration February 28, 2006

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: 1912973058

Entity Type:

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

Enumeration Date: February 28, 2006

Last Update: July 13, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

101 Willmar Ave Sw

Willmar, MN 56201

Phone: 3202315000

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.