Dr. Michael Nasr Mankarious , MD
Internal Medicine • Clinton, IA
638 S Bluff Blvd
Clinton, IA 527324742
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 Mankarious is listed in NPPES under Internal Medicine.
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NPI assigned on June 2, 2005; this date does not establish years in practice.
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Published CMS data list 1,480 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 363 service units.
- 99213 — Established patient outpatient office visit: 280 service units.
- 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: 176 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® 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 17 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 13,392 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – 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 — 739 prescription fills, including refills.
- Amlodipine Besylate — 664 prescription fills, including refills.
- Gabapentin — 526 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 178 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 65% of clinicians listed under Internal Medicine in Iowa (2024, 349 clinicians with data). Median for this group: 756. Middle half: 286 to 2,320.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,494 in 2020 to 1,480 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
638 S Bluff Blvd
Clinton, IA 527324742
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Mercy Specialty Clinic. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
1979
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
207 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 – by Provider, 2024.
Medicare-allowed amount
About $92,319 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 – by Provider and Service, 2024.
Paid by Medicare
About $67,938 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 – by Provider and Service, 2024.
30-day fills
20,831 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
$978,546 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 – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $349.89 across 19 records.
By nature of payment
- Food and Beverage: $349.89 across 19 records.
Reporting-company totals (3 largest of 10)
- AstraZeneca Pharmaceuticals LP: $91.77 across 5 records.
- Neurocrine BioSciences, Inc.: $59.48 across 3 records.
- Boston Scientific Corporation: $40.46 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
47 years (graduated 1979)
CMS Doctors and Clinicians data list 1979 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
2005
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, “Does your provider accept Medicare as full payment?”
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. Mankarious 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. Mankarious 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 Clinton and Iowa
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 65% of clinicians listed under Internal Medicine in Iowa (2024, 349 clinicians with data). Median for this group: 756. Middle half: 286 to 2,320.
Too few clinicians listed under Internal Medicine in Clinton have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 60% of clinicians listed under Internal Medicine in Iowa (2024, 349 clinicians with data). Median for this group: $68,034. Middle half: $24,894 to $145,727.
Too few clinicians listed under Internal Medicine in Clinton have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 60% of clinicians listed under Internal Medicine in Iowa (2024, 349 clinicians with data). Median for this group: $51,828. Middle half: $19,616 to $112,186.
Too few clinicians listed under Internal Medicine in Clinton have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 90% of clinicians listed under Internal Medicine in Iowa (2024, 436 clinicians with data). Median for this group: 429. Middle half: 79 to 6,627.
Too few clinicians listed under Internal Medicine in Clinton have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Iowa (2024, 436 clinicians with data). Median for this group: $31,354. Middle half: $1,023 to $491,542.
Too few clinicians listed under Internal Medicine in Clinton have Medicare Part D data for 2024 to compare.
6 active clinicians are listed under Internal Medicine with a practice address in Clinton, IA (871 in Iowa).
Addresses are self-reported to NPPES and may be out of date.
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: 1,494 in 2020 and 1,480 in 2024.
- 2020: 1,494
- 2021: 1,643
- 2022: 1,962
- 2023: 1,347
- 2024: 1,480
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Medicare-allowed amount
Medicare-allowed amount decreased 18% from $112,795 in 2020 to $92,319 in 2024.
- 2020: $112,795
- 2021: $138,645
- 2022: $138,821
- 2023: $95,657
- 2024: $92,319
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Paid by Medicare
Paid by Medicare decreased 16% from $80,733 in 2020 to $67,938 in 2024.
- 2020: $80,733
- 2021: $102,797
- 2022: $102,691
- 2023: $71,425
- 2024: $67,938
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 18% from 11,389 in 2020 to 13,392 in 2024.
- 2020: 11,389
- 2021: 12,805
- 2022: 13,117
- 2023: 13,091
- 2024: 13,392
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30-day fills
30-day fills increased 22% from 17,108 in 2020 to 20,831 in 2024.
- 2020: 17,108
- 2021: 19,120
- 2022: 19,399
- 2023: 20,242
- 2024: 20,831
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Part D drug cost
Part D drug cost increased 54% from $633,850 in 2020 to $978,546 in 2024.
- 2020: $633,850
- 2021: $730,586
- 2022: $847,515
- 2023: $858,396
- 2024: $978,546
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $445.76 in 2021 to $349.89 in 2025.
- 2021: $445.76
- 2022: $525.52
- 2023: $499.14
- 2024: $537.56
- 2025: $349.89
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 19 records totaling $349.89.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
AIRSUPRA | General | $29.28 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
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INGREZZA | General | $25.72 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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WATCHMAN Access System | General | $22.94 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $21.77 |
| Phathom Pharmaceuticals, Inc. |
Food and Beverage
Cash or cash equivalent
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VOQUEZNA | General | $21.74 |
| Xeris Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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GVOKE HYPOPEN | General | $19.23 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
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INGREZZA | General | $19.20 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $18.48 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $18.29 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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WATCHMAN Access System | General | $17.52 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $17.16 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $16.90 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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— | General | $16.82 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $15.11 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
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INGREZZA | General | $14.56 |
| Xeris Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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GVOKE HYPOPEN | General | $14.10 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $13.69 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $13.69 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $13.69 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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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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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363 | 139 | $218.00 | $90.42 |
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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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280 | 118 | $146.00 | $61.13 |
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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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176 | 116 | $46.00 | $15.42 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
|
129 | 28 | $151.00 | $69.23 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
|
86 | 86 | $263.00 | $120.00 |
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99307
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes
|
78 | 23 | $125.00 | $37.41 |
|
36415
Insertion of needle into vein for collection of blood sample
|
75 | 21 | $37.00 | $8.65 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
|
47 | 21 | $151.00 | $69.19 |
|
85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
|
45 | 17 | $77.00 | $7.61 |
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P9604
Travel allowance one way in connection with medically necessary laboratory specimen collection drawn from home bound or nursing home bound patient; prorated trip charge
|
38 | 15 | $14.32 | $14.03 |
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80053
Blood test, comprehensive group of blood chemicals
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36 | 18 | $113.00 | $10.35 |
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
|
32 | 17 | $270.00 | $99.98 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
26 | 24 | $290.00 | $133.74 |
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99307
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes
|
19 | 11 | $125.00 | $37.41 |
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99306
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more
|
17 | 16 | $371.00 | $169.05 |
|
99315
Nursing facility discharge day management, 30 minutes or less
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17 | 16 | $152.00 | $76.08 |
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G0180
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
|
16 | 15 | $87.81 | $49.62 |
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 | 739 | 41,777 | $7,023.21 | 145 |
| Amlodipine Besylate | Amlodipine Besylate | 664 | 37,096 | $3,494.17 | 135 |
| Gabapentin | Gabapentin | 526 | 20,195 | $8,831.23 | 88 |
| Furosemide | Furosemide | 525 | 22,272 | $2,981.12 | 102 |
| Levothyroxine Sodium | Levothyroxine Sodium | 476 | 24,009 | $42,934.80 | 74 |
| Omeprazole | Omeprazole | 452 | 23,693 | $4,398.94 | 87 |
| Montelukast Sodium | Montelukast Sodium | 426 | 19,487 | $3,711.33 | 77 |
| Potassium Chloride | Potassium Chloride | 397 | 17,395 | $9,822.37 | 75 |
| Metoprolol Succinate | Metoprolol Succinate | 365 | 19,689 | $4,006.76 | 73 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 320 | 20,142 | $2,475.27 | 69 |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 273 | 15,325 | $2,463.06 | 49 |
| Pantoprazole Sodium | Pantoprazole Sodium | 253 | 12,907 | $3,190.67 | 49 |
| Eliquis | Apixaban | 240 | 5,828 | $117,779.56 | 27 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 211 | 5,991 | $4,599.08 | 39 |
| Ezetimibe | Ezetimibe | 207 | 10,135 | $7,848.07 | 41 |
| Lisinopril | Lisinopril | 204 | 13,355 | $1,627.82 | 49 |
| Tamsulosin Hcl | Tamsulosin Hcl | 188 | 11,021 | $1,693.26 | 43 |
| Metformin Hcl | Metformin Hcl | 183 | 10,760 | $1,239.30 | 46 |
| Metoprolol Tartrate | Metoprolol Tartrate | 158 | 9,176 | $834.27 | 34 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 157 | 6,270 | $5,791.31 | 57 |
| Clonazepam | Clonazepam | 155 | 4,578 | $2,271.21 | 34 |
| Losartan Potassium | Losartan Potassium | 153 | 9,255 | $823.02 | 33 |
| Clopidogrel | Clopidogrel Bisulfate | 136 | 6,778 | $1,323.12 | 26 |
| Benazepril Hcl | Benazepril Hcl | 136 | 7,201 | $1,220.01 | 23 |
| Prednisone | Prednisone | 130 | 1,326 | $503.16 | 67 |
(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
NUCC 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
I20100609000280
IA
8729118377
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Mercy Specialty Clinic
915 13th Ave N, Clinton, IA 527325067
Phone: 5632432511
Mercy Specialty Clinic
600 14th Ave N, Clinton, IA 527322914
Mercy Specialty Clinic
1410 N 4th St, Clinton, IA 527322940
Phone: 5632445900
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Advanced Registered Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 621 S ILLINOIS AVE, SUITE 103, MASON CITY, IA 504015405 (Tel: 6414283041)
Registered at 638 S BLUFF BLVD, CLINTON, IA 527324742 (Tel: 5632435601)
Recorded as MICHAEL MANKARIOUS, M.D.
Internal Medicine (license number reported to NPPES: IA 28726)
NPI status registered as active in NPPES database
Registered at 638 S BLUFF BLVD, CLINTON, IA 527324742 (Tel: 5632435601)
Registered at 1215 N 5TH ST, CLINTON, IA 527325101 (Tel: 5632421777)
Recorded as MICHAEL MANKARIOUS, M.D.
Internal Medicine (license number reported to NPPES: IA 28726)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Clinton
Healthcare providers in ClintonMailing Address
621 S Illinois Ave, Suite 103
Mason City, IA 504015405
Phone: 6414283041