Dr. Douglas J Marshall , MD
Internal Medicine • Morton, IL
110 N Main St
Morton, IL 615502024
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. Douglas Marshall is listed in NPPES under Internal Medicine.
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NPI assigned on July 31, 2006; this date does not establish years in practice.
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Published CMS data list 2,583 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:
- 36415 — Insertion of needle into vein for collection of blood sample: 650 service units.
- 99214 — Established patient outpatient office visit: 489 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: 382 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 23 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 6,500 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:
- Rosuvastatin Calcium — 518 prescription fills, including refills.
- Levothyroxine Sodium — 323 prescription fills, including refills.
- Omeprazole — 316 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 114 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Illinois (2024, 3,249 clinicians with data). Median for this group: 699. Middle half: 285 to 1,340.
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 2,508 in 2020 to 2,583 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
110 N Main St
Morton, IL 615502024
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 3 distinct group names: Carle Health Care Incorporated; Methodist Medical Center Of Illinois; Proctor Health Systems. 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
Southern Illinois University School Of Medicine
1992
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
314 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 $178,052 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 $134,264 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
15,984 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
$611,871 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.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $18.15 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
Years since graduation
34 years (graduated 1992)
CMS Doctors and Clinicians data list 1992 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. Marshall 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. Marshall 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 Morton and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Illinois (2024, 3,249 clinicians with data). Median for this group: 699. Middle half: 285 to 1,340.
Too few clinicians listed under Internal Medicine in Morton have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Internal Medicine in Illinois (2024, 3,249 clinicians with data). Median for this group: $67,802. Middle half: $27,619 to $124,679.
Too few clinicians listed under Internal Medicine in Morton have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Internal Medicine in Illinois (2024, 3,249 clinicians with data). Median for this group: $52,838. Middle half: $21,117 to $98,214.
Too few clinicians listed under Internal Medicine in Morton have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Internal Medicine in Illinois (2024, 3,755 clinicians with data). Median for this group: 1,030. Middle half: 99 to 4,658.
Too few clinicians listed under Internal Medicine in Morton have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 85% of clinicians listed under Internal Medicine in Illinois (2024, 3,755 clinicians with data). Median for this group: $78,716. Middle half: $2,604 to $371,507.
Too few clinicians listed under Internal Medicine in Morton have Medicare Part D data for 2024 to compare.
6 active clinicians are listed under Internal Medicine with a practice address in Morton, IL (7,245 in Illinois).
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: 2,508 in 2020 and 2,583 in 2024.
- 2020: 2,508
- 2021: 2,514
- 2022: 2,637
- 2023: 3,641
- 2024: 2,583
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Medicare-allowed amount
Medicare-allowed amount stayed about the same: $172,538 in 2020 and $178,052 in 2024.
- 2020: $172,538
- 2021: $169,572
- 2022: $196,480
- 2023: $229,894
- 2024: $178,052
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Paid by Medicare
Paid by Medicare stayed about the same: $129,183 in 2020 and $134,264 in 2024.
- 2020: $129,183
- 2021: $121,757
- 2022: $146,382
- 2023: $177,576
- 2024: $134,264
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 6,969 in 2020 and 6,500 in 2024.
- 2020: 6,969
- 2021: 6,392
- 2022: 6,514
- 2023: 6,811
- 2024: 6,500
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30-day fills
30-day fills stayed about the same: 15,374 in 2020 and 15,984 in 2024.
- 2020: 15,374
- 2021: 15,087
- 2022: 15,613
- 2023: 16,005
- 2024: 15,984
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Part D drug cost
Part D drug cost varied from year to year: $596,745 in 2020 and $611,871 in 2024.
- 2020: $596,745
- 2021: $555,688
- 2022: $768,243
- 2023: $736,124
- 2024: $611,871
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $793.50 in 2019 to $18.15 in 2025.
- 2019: $793.50
- 2020: $211.43
- 2025: $18.15
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): fewer than 11 records totaling $18.15.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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WATCHMAN Access System | General | $18.15 |
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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36415
Insertion of needle into vein for collection of blood sample
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650 | 244 | $10.00 | $8.62 |
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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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489 | 235 | $260.00 | $122.12 |
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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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382 | 203 | $40.45 | $15.86 |
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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
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212 | 121 | $360.19 | $171.37 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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172 | 172 | $315.00 | $123.49 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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139 | 49 | $195.00 | $76.09 |
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J3301
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
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89 | 17 | $17.96 | $0.98 |
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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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62 | 59 | $185.00 | $86.77 |
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90662
Influenza vaccine split virus, preservative free
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51 | 50 | $173.01 | $81.63 |
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G0008
Administration of influenza virus vaccine
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51 | 50 | $61.00 | $31.15 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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44 | 23 | $265.00 | $114.32 |
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96372
Injection of drug or substance under skin or into muscle
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30 | 21 | $61.00 | $13.46 |
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71046
X-ray of chest, 2 views
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26 | 22 | $57.42 | $21.38 |
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99239
Hospital discharge day management, more than 30 minutes
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26 | 19 | $280.00 | $109.79 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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21 | 15 | $320.00 | $126.64 |
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90480
Admn sarscov2 vacc 1 dose
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19 | 18 | $88.00 | $41.54 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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19 | 16 | $445.00 | $167.19 |
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99238
Hospital discharge day management, 30 minutes or less
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18 | 17 | $200.00 | $77.65 |
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99496
Transitional care management services for problem of high complexity
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18 | 17 | $670.00 | $264.33 |
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91322
Sarscov2 vac 50 mcg/0.5ml im
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17 | 17 | $338.62 | $158.42 |
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J3420
Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg
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17 | 13 | $49.91 | $1.32 |
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81003
Automated urinalysis test
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16 | 13 | $7.00 | $2.20 |
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99495
Transitional care management services for problem of at least moderate complexity
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15 | 13 | $495.00 | $195.43 |
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 |
|---|---|---|---|---|---|
| Rosuvastatin Calcium | Rosuvastatin Calcium | 518 | 43,728 | $4,405.31 | 143 |
| Levothyroxine Sodium | Levothyroxine Sodium | 323 | 24,912 | $3,058.97 | 74 |
| Omeprazole | Omeprazole | 316 | 25,788 | $4,375.70 | 93 |
| Amlodipine Besylate | Amlodipine Besylate | 241 | 19,205 | $1,571.19 | 60 |
| Atorvastatin Calcium | Atorvastatin Calcium | 220 | 18,289 | $2,321.94 | 58 |
| Losartan Potassium | Losartan Potassium | 197 | 16,585 | $1,428.10 | 54 |
| Metoprolol Succinate | Metoprolol Succinate | 175 | 15,457 | $2,625.70 | 50 |
| Metformin Hcl Er | Metformin Hcl | 171 | 14,502 | $2,058.53 | 50 |
| Furosemide | Furosemide | 126 | 8,983 | $721.47 | 32 |
| Ezetimibe | Ezetimibe | 121 | 10,226 | $2,940.19 | 33 |
| Duloxetine Hcl | Duloxetine Hcl | 115 | 7,367 | $2,322.03 | 27 |
| Tramadol Hcl | Tramadol Hcl | 113 | 2,577 | $516.01 | 26 |
| Tamsulosin Hcl | Tamsulosin Hcl | 112 | 8,663 | $2,871.37 | 31 |
| Sertraline Hcl | Sertraline Hcl | 107 | 7,920 | $905.66 | 30 |
| Carvedilol | Carvedilol | 104 | 8,219 | $624.98 | 29 |
| Hydrochlorothiazide | Hydrochlorothiazide | 100 | 8,545 | $402.14 | 27 |
| Lisinopril | Lisinopril | 99 | 8,878 | $648.82 | 28 |
| Potassium Chloride | Potassium Chloride | 97 | 5,821 | $1,440.69 | 28 |
| Eliquis | Apixaban | 96 | 6,868 | $133,112.85 | 28 |
| Simvastatin | Simvastatin | 92 | 8,227 | $952.08 | 27 |
| Metoprolol Tartrate | Metoprolol Tartrate | 90 | 6,887 | $675.40 | 21 |
| Pioglitazone Hcl | Pioglitazone Hcl | 79 | 6,580 | $839.10 | 22 |
| Clopidogrel | Clopidogrel Bisulfate | 77 | 5,741 | $583.34 | 22 |
| Pravastatin Sodium | Pravastatin Sodium | 76 | 6,176 | $920.46 | 19 |
| Ozempic | Semaglutide | 76 | 4,136 | $134,551.04 | 14 |
(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
I20040503000287
IL
5092702092
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
Methodist Medical Center Of Illinois
815 Main St, Peoria, IL 616021076
Phone: 3096724977
Carle Health Care Incorporated
1909 N Morton Ave, Morton, IL 615501426
Phone: 3092634343
Proctor Health Systems
2076 N Main St, Canton, IL 615201054
Phone: 3096476090
Carle Health Care Incorporated
611 W Park St, Urbana, IL 618012501
Proctor Health Systems
5401 N Knoxville Ave, Peoria, IL 616145021
Methodist Medical Center Of Illinois
815 Main St, Peoria, IL 616021080
Phone: 3096724977
Proctor Health Systems
1909 N Morton Ave, Morton, IL 615501426
Phone: 3092634343
Carle Health Care Incorporated
611 W Park St, Urbana, IL 618012501
Phone: 8887122753
Methodist Medical Center Of Illinois
1909 N Morton Ave, Morton, IL 615501426
Phone: 3092639124
Career & Practice History
NPI enumerated July 31, 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 Morton
Healthcare providers in MortonMailing Address
110 N Main St
Morton, IL 615502024
Phone: 3092668900