Dr. John Michael Corsi , DO
Internal Medicine • Smithfield, RI
28 Cedar Swamp Rd
Smithfield, RI 02917
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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NPI assigned on August 11, 2006; this date does not establish years in practice.
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Published CMS data list 644 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:
- 99213 — Established patient outpatient office visit: 170 service units.
- 99214 — Established patient outpatient office visit: 153 service units.
- 83036 — Hemoglobin a1c level: 105 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 9 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 11,226 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 — 600 prescription fills, including refills.
- Amlodipine Besylate — 466 prescription fills, including refills.
- Lorazepam — 464 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 143 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Rhode Island (2024, 529 clinicians with data). Median for this group: 396. Middle half: 234 to 705.
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 712 in 2020 to 644 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
28 Cedar Swamp Rd
Smithfield, RI 02917
CMS Doctors and Clinicians lists 1 group name: Prospect Chartercare Physicians Llc. 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
1988
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
155 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 $56,240 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 $41,851 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
22,694 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
$682,261 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: $1,839.78 across 98 records.
By nature of payment
- Food and Beverage: $1,839.78 across 98 records.
Reporting-company totals (3 largest of 18)
- AstraZeneca Pharmaceuticals LP: $430.75 across 20 records.
- GlaxoSmithKline, LLC.: $269.11 across 17 records.
- Pfizer Inc.: $256.14 across 13 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
38 years (graduated 1988)
CMS Doctors and Clinicians data list 1988 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, “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. Corsi 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. Corsi 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 Smithfield and Rhode Island
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Rhode Island (2024, 529 clinicians with data). Median for this group: 396. Middle half: 234 to 705.
Too few clinicians listed under Internal Medicine in Smithfield have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 70% of clinicians listed under Internal Medicine in Rhode Island (2024, 529 clinicians with data). Median for this group: $38,752. Middle half: $20,970 to $59,070.
Too few clinicians listed under Internal Medicine in Smithfield have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 70% of clinicians listed under Internal Medicine in Rhode Island (2024, 529 clinicians with data). Median for this group: $28,221. Middle half: $15,243 to $44,860.
Too few clinicians listed under Internal Medicine in Smithfield have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Rhode Island (2024, 581 clinicians with data). Median for this group: 749. Middle half: 91 to 5,119.
Too few clinicians listed under Internal Medicine in Smithfield 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 Rhode Island (2024, 581 clinicians with data). Median for this group: $63,829. Middle half: $3,341 to $358,176.
Too few clinicians listed under Internal Medicine in Smithfield have Medicare Part D data for 2024 to compare.
8 active clinicians are listed under Internal Medicine with a practice address in Smithfield, RI (1,034 in Rhode Island).
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 decreased 10% from 712 in 2020 to 644 in 2024.
- 2020: 712
- 2021: 507
- 2022: 545
- 2023: 745
- 2024: 644
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $59,850 in 2020 and $56,240 in 2024.
- 2020: $59,850
- 2021: $52,642
- 2022: $51,972
- 2023: $66,450
- 2024: $56,240
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Paid by Medicare
Paid by Medicare varied from year to year: $43,968 in 2020 and $41,851 in 2024.
- 2020: $43,968
- 2021: $37,944
- 2022: $36,632
- 2023: $48,823
- 2024: $41,851
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 10,341 in 2020 and 11,226 in 2024.
- 2020: 10,341
- 2021: 10,223
- 2022: 10,953
- 2023: 11,264
- 2024: 11,226
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30-day fills
30-day fills increased 19% from 19,027 in 2020 to 22,694 in 2024.
- 2020: 19,027
- 2021: 19,809
- 2022: 20,562
- 2023: 21,589
- 2024: 22,694
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Part D drug cost
Part D drug cost increased 40% from $488,983 in 2020 to $682,261 in 2024.
- 2020: $488,983
- 2021: $492,790
- 2022: $496,062
- 2023: $648,443
- 2024: $682,261
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 51% from $3,781.13 in 2021 to $1,839.78 in 2025.
- 2021: $3,781.13
- 2022: $2,467.15
- 2023: $2,540.24
- 2024: $1,760.96
- 2025: $1,839.78
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): 98 records totaling $1,839.78.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
— | General | $29.70 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
BREZTRI | General | $28.72 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $28.30 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Rybelsus | General | $27.99 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
— | General | $27.97 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
VRAYLAR | General | $27.67 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $27.52 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $27.17 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $27.17 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
VRAYLAR | General | $26.72 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $26.20 |
| Verona Pharma, Inc. |
Food and Beverage
Cash or cash equivalent
|
Ohtuvayre | General | $25.94 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
BREZTRI | General | $25.83 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $24.95 |
| Verona Pharma, Inc. |
Food and Beverage
Cash or cash equivalent
|
Ohtuvayre | General | $24.93 |
| Inspire Medical Systems, Inc. |
Food and Beverage
In-kind items and services
|
INSPIRE | General | $24.65 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $24.21 |
| Phathom Pharmaceuticals, Inc. |
Food and Beverage
Cash or cash equivalent
|
VOQUEZNA | General | $24.21 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
VRAYLAR | General | $24.04 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $23.96 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
BREZTRI | General | $23.91 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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AIRSUPRA | General | $23.71 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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TRELEGY ELLIPTA | General | $23.67 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
|
Cologuard Collection Kit | General | $22.72 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
ELIQUIS | General | $22.53 |
(top 25 shown)
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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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
170 | 86 | $151.00 | $90.63 |
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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
|
153 | 109 | $224.00 | $127.35 |
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83036
Hemoglobin a1c level
|
105 | 53 | $23.00 | $9.43 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
|
97 | 97 | $243.00 | $129.12 |
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87811
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)
|
43 | 30 | $82.00 | $39.61 |
|
G0008
Administration of influenza virus vaccine
|
27 | 27 | $53.00 | $32.68 |
|
93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
|
21 | 20 | $36.00 | $13.81 |
|
99496
Transitional care management services for problem of high complexity
|
17 | 16 | $481.00 | $282.10 |
|
87804
Detection test by immunoassay with direct visual observation for influenza virus
|
11 | 11 | $26.00 | $14.75 |
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 | 600 | 48,550 | $6,215.90 | 160 |
| Amlodipine Besylate | Amlodipine Besylate | 466 | 37,944 | $3,567.76 | 121 |
| Lorazepam | Lorazepam | 464 | 13,982 | $1,961.69 | 65 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 431 | 34,664 | $5,003.01 | 123 |
| Omeprazole | Omeprazole | 419 | 35,344 | $7,265.21 | 123 |
| Lisinopril | Lisinopril | 313 | 25,504 | $2,739.19 | 86 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 306 | 8,390 | $7,904.02 | 95 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 271 | 21,338 | $3,055.19 | 73 |
| Meloxicam | Meloxicam | 268 | 14,013 | $1,683.82 | 57 |
| Levothyroxine Sodium | Levothyroxine Sodium | 268 | 18,430 | $2,806.09 | 57 |
| Clonazepam | Clonazepam | 267 | 7,974 | $2,049.25 | 32 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 254 | 6,831 | $4,538.05 | 31 |
| Losartan Potassium | Losartan Potassium | 235 | 18,091 | $2,088.02 | 65 |
| Metformin Hcl Er | Metformin Hcl | 225 | 16,429 | $1,882.09 | 61 |
| Simvastatin | Simvastatin | 209 | 18,212 | $2,062.55 | 54 |
| Methylprednisolone | Methylprednisolone | 203 | 1,246 | $1,777.65 | 150 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 195 | 15,762 | $1,821.88 | 48 |
| Montelukast Sodium | Montelukast Sodium | 177 | 13,022 | $1,582.71 | 49 |
| Oxycodone Hcl | Oxycodone Hcl | 171 | 4,974 | $3,311.16 | 20 |
| Hydrochlorothiazide | Hydrochlorothiazide | 170 | 14,505 | $662.64 | 45 |
| Metoprolol Tartrate | Metoprolol Tartrate | 167 | 11,728 | $1,233.83 | 39 |
| Gabapentin | Gabapentin | 159 | 9,540 | $2,811.61 | 38 |
| Tamsulosin Hcl | Tamsulosin Hcl | 156 | 13,370 | $2,030.26 | 45 |
| Escitalopram Oxalate | Escitalopram Oxalate | 146 | 9,711 | $1,579.84 | 35 |
| Pantoprazole Sodium | Pantoprazole Sodium | 142 | 10,551 | $1,462.54 | 36 |
(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
I20090729000638
RI
1951454545
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
Prospect Chartercare Physicians Llc
1681 Cranston St, Cranston, RI 029205000
Phone: 4019446889
Career & Practice History
NPI enumerated August 11, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Smithfield
- Dr. Luis Lopez La Rosa, MD
- Dr. Katie Kozacka, MD
- Dr. John Gaines, MD
- Dr. Nidhi Sharma, MD
- Dr. Ryan Rossi, MD
- Dr. Lauren Conner, MD, MA
Mailing Address
28 Cedar Swamp Rd
Smithfield, RI 02917
Phone: 4012323688