Dr. Michael A Johnson , MD
Internal Medicine โข Appleton, WI
3916 N Intertech Ct
Appleton, WI 54913
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Michael Johnson is listed in NPPES under Internal Medicine.
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NPI assigned on July 6, 2006; this date does not establish years in practice.
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Published CMS data list 6,250 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- Q9967 โ Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml: 1,835 service units.
- 36415 โ Insertion of needle into vein for collection of blood sample: 644 service units.
- 80048 โ Blood test, basic group of blood chemicals (calcium, total): 409 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 45 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 12,250 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium โ 971 prescription fills, including refills.
- Levothyroxine Sodium โ 542 prescription fills, including refills.
- Omeprazole โ 469 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 137 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Appleton, WI (2024, 24 clinicians with data). Median for this group: 1,048. Middle half: 396 to 2,433.
More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Wisconsin (2024, 1,010 clinicians with data). Median for this group: 572. Middle half: 266 to 1,020.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 5,905 in 2020 to 6,250 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
3916 N Intertech Ct
Appleton, WI 54913
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Indiana University School Of Medicine
1990
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
270 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $135,140 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $113,600 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
28,777 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$993,372 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
36 years (graduated 1990)
CMS Doctors and Clinicians data list 1990 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Johnson has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Johnson as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Appleton and Wisconsin
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Appleton, WI (2024, 24 clinicians with data). Median for this group: 1,048. Middle half: 396 to 2,433.
More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Wisconsin (2024, 1,010 clinicians with data). Median for this group: 572. Middle half: 266 to 1,020.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Internal Medicine in Appleton, WI (2024, 24 clinicians with data). Median for this group: $73,687. Middle half: $39,617 to $116,234.
A higher Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Wisconsin (2024, 1,010 clinicians with data). Median for this group: $49,332. Middle half: $25,625 to $85,764.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under Internal Medicine in Appleton, WI (2024, 24 clinicians with data). Median for this group: $57,624. Middle half: $30,735 to $96,930.
A higher Medicare payment amount than 90% of clinicians listed under Internal Medicine in Wisconsin (2024, 1,010 clinicians with data). Median for this group: $38,120. Middle half: $18,776 to $65,615.
Medicare Part D prescriptions
More Part D prescriptions than 75% of clinicians listed under Internal Medicine in Appleton, WI (2024, 25 clinicians with data). Median for this group: 3,804. Middle half: 223 to 12,250.
More Part D prescriptions than 90% of clinicians listed under Internal Medicine in Wisconsin (2024, 1,164 clinicians with data). Median for this group: 2,178. Middle half: 139 to 7,601.
Part D drug cost
A higher Part D drug cost than 80% of clinicians listed under Internal Medicine in Appleton, WI (2024, 25 clinicians with data). Median for this group: $166,315. Middle half: $14,637 to $909,453.
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Wisconsin (2024, 1,164 clinicians with data). Median for this group: $173,642. Middle half: $7,999 to $596,192.
39 active clinicians are listed under Internal Medicine with a practice address in Appleton, WI (2,078 in Wisconsin).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Appleton
12.8% of these 39 clinicians have the CMS telehealth indicator.
66.7% of these 39 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services varied from year to year: 5,905 in 2020 and 6,250 in 2024.
- 2020: 5,905
- 2021: 5,049
- 2022: 4,494
- 2023: 4,352
- 2024: 6,250
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Medicare-allowed amount
Medicare-allowed amount increased 12% from $120,551 in 2020 to $135,140 in 2024.
- 2020: $120,551
- 2021: $147,252
- 2022: $145,949
- 2023: $137,827
- 2024: $135,140
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Paid by Medicare
Paid by Medicare increased 12% from $101,082 in 2020 to $113,600 in 2024.
- 2020: $101,082
- 2021: $123,942
- 2022: $123,153
- 2023: $115,698
- 2024: $113,600
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 12,360 in 2020 and 12,250 in 2024.
- 2020: 12,360
- 2021: 12,710
- 2022: 13,333
- 2023: 12,667
- 2024: 12,250
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30-day fills
30-day fills stayed about the same: 28,957 in 2020 and 28,777 in 2024.
- 2020: 28,957
- 2021: 29,843
- 2022: 30,651
- 2023: 28,888
- 2024: 28,777
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Part D drug cost
Part D drug cost increased 20% from $824,900 in 2020 to $993,372 in 2024.
- 2020: $824,900
- 2021: $919,326
- 2022: $969,809
- 2023: $1,069,532
- 2024: $993,372
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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Q9967
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml
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1,835 | 18 | $1.00 | $0.13 |
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36415
Insertion of needle into vein for collection of blood sample
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644 | 228 | $19.00 | $8.62 |
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80048
Blood test, basic group of blood chemicals (calcium, total)
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409 | 210 | $70.42 | $8.27 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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364 | 211 | $398.00 | $120.66 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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336 | 193 | $61.00 | $7.60 |
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80061
Blood test, lipids (cholesterol and triglycerides)
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278 | 201 | $110.00 | $13.10 |
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84443
Blood test, thyroid stimulating hormone (tsh)
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241 | 175 | $131.00 | $16.46 |
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81001
Manual urinalysis test with examination using microscope, automated
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206 | 169 | $24.00 | $3.10 |
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83036
Hemoglobin a1c level
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203 | 108 | $78.00 | $9.52 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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187 | 187 | $185.00 | $121.82 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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148 | 99 | $265.00 | $85.28 |
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80076
Liver function blood test panel
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132 | 102 | $73.00 | $8.01 |
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85610
Blood test, clotting time
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124 | 12 | $52.00 | $4.20 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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114 | 83 | $22.00 | $15.41 |
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G0103
Prostate cancer screening; prostate specific antigen test (psa)
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80 | 80 | $142.00 | $18.92 |
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82570
Creatinine level to test for kidney function or muscle injury
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76 | 63 | $43.00 | $5.08 |
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82043
Urine microalbumin (protein) level
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60 | 59 | $47.00 | $5.66 |
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84450
Liver enzyme (sgot), level
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60 | 54 | $68.00 | $5.04 |
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G0008
Administration of influenza virus vaccine
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52 | 51 | $58.00 | $30.42 |
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77063
Screening 3d breast mammography
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51 | 51 | $70.00 | $22.44 |
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77067
Screening mammography
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51 | 51 | $540.00 | $86.11 |
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90662
Influenza vaccine split virus, preservative free
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49 | 49 | $124.14 | $81.42 |
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82728
Ferritin (blood protein) level
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46 | 24 | $101.00 | $13.36 |
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90480
Admn sarscov2 vacc 1 dose
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42 | 38 | $58.00 | $40.56 |
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91322
Sarscov2 vac 50 mcg/0.5ml im
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42 | 38 | $261.33 | $154.38 |
(top 25 shown)
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 971 | 75,453 | $10,858.57 | 237 |
| Levothyroxine Sodium | Levothyroxine Sodium | 542 | 43,512 | $7,135.63 | 127 |
| Omeprazole | Omeprazole | 469 | 36,573 | $6,382.41 | 122 |
| Lisinopril | Lisinopril | 429 | 35,070 | $3,966.71 | 120 |
| Amlodipine Besylate | Amlodipine Besylate | 384 | 31,207 | $2,536.86 | 98 |
| Losartan Potassium | Losartan Potassium | 321 | 26,015 | $3,634.30 | 86 |
| Metoprolol Succinate | Metoprolol Succinate | 319 | 25,620 | $5,895.34 | 83 |
| Metformin Hcl | Metformin Hcl | 291 | 24,304 | $3,020.04 | 81 |
| Simvastatin | Simvastatin | 287 | 23,794 | $2,932.82 | 74 |
| Furosemide | Furosemide | 251 | 18,503 | $1,630.70 | 81 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 247 | 20,035 | $3,626.50 | 68 |
| Hydrochlorothiazide | Hydrochlorothiazide | 236 | 20,307 | $1,159.17 | 66 |
| Tamsulosin Hcl | Tamsulosin Hcl | 210 | 17,194 | $3,417.57 | 60 |
| Escitalopram Oxalate | Escitalopram Oxalate | 206 | 13,778 | $1,725.26 | 54 |
| Metoprolol Tartrate | Metoprolol Tartrate | 200 | 15,334 | $2,087.38 | 47 |
| Warfarin Sodium | Warfarin Sodium | 199 | 14,642 | $2,589.55 | 32 |
| Carvedilol | Carvedilol | 199 | 15,769 | $2,263.22 | 54 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 194 | 15,335 | $1,885.62 | 47 |
| Jardiance | Empagliflozin | 189 | 11,327 | $216,181.15 | 42 |
| Glimepiride | Glimepiride | 185 | 14,466 | $2,100.66 | 46 |
| Metformin Hcl Er | Metformin Hcl | 184 | 13,695 | $1,829.19 | 44 |
| Sertraline Hcl | Sertraline Hcl | 176 | 11,896 | $2,492.41 | 38 |
| Gabapentin | Gabapentin | 169 | 9,499 | $2,090.15 | 46 |
| Alendronate Sodium | Alendronate Sodium | 167 | 10,885 | $1,664.23 | 41 |
| Xarelto | Rivaroxaban | 158 | 9,260 | $165,913.04 | 35 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-07-03NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20060925000091
WI
8527063627
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Physician Assistant
Physician Assistant (Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at N7763 STATE PARK RD, SHERWOOD, WI 541699629 (Tel: 9202131823)
NPI status registered as active in NPPES database
Registered at 3916 N INTERTECH CT, APPLETON, WI 54913 (Tel: 9209961000)
Registered at 3916 N INTERTECH CT, APPLETON, WI 54913 (Tel: 9209961000)
Recorded as MICHAEL JOHNSON, MD
Internal Medicine (license number reported to NPPES: WI 33994-020)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Appleton
- Dr. Stephen Dernlan, MD
- Dr. Aditya Rangbulla, MD
- Dr. Mohamed Zakarya, MD
- Dr. Dirk Steinert, MD
- Craig Destree
- Dr. Sahar Ahmad, MD
Mailing Address
N7763 State Park Rd
Sherwood, WI 541699629
Phone: 9202131823