Dr. Stephen F Dewitt , MD
Internal Medicine • Warren, MI
28800 Ryan Rd, Suite 230
Warren, MI 480924269
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Dr. Stephen Dewitt is listed in NPPES under Internal Medicine.
-
NPI assigned on November 8, 2006; this date does not establish years in practice.
-
Published CMS data list 1,434 Original Medicare Part B services in 2020.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020. Published rows only; this is not a quality measure.
-
Published Part B service records, 2020:
- 99214 — Established patient outpatient office visit: 351 service units.
- G0444 — Annual depression screening, 5 to 15 minutes: 232 service units.
- 99215 — Established patient outpatient office visit: 196 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2019 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2020). CPT notice
See all 20 records in the table · Guide: How to read Medicare Part B data
-
Published CMS data list 1,288 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Published rows only; this is not a quality measure.
-
Published Part D records, 2021:
- Atorvastatin Calcium — 142 prescription fills, including refills.
- Amlodipine Besylate — 96 prescription fills, including refills.
- Lisinopril — 82 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 43 records in the table · Guide: How to read Medicare Part D prescriber data
-
Medicare Part B services went from 1,635 in 2017 to 1,434 in 2020.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2020.
Practice Location & Contact Primary Location
28800 Ryan Rd
Suite 230
Warren, MI 480924269
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $114,606 in 2020
The total amount Medicare approved for these services in 2020. 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, 2020.
Paid by Medicare
About $86,354 in 2020
The part of the Medicare-allowed amount that Medicare itself paid in 2020, 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, 2020.
30-day fills
3,229 standardized 30-day fills in 2021
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
$65,305 in 2021
The total cost of these prescriptions in 2021, 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, 2021.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $13.17 in 2024
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 2024.
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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.
Compared with the same specialty in Warren and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Dewitt are from 2020.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Dewitt are from 2021.
90 active clinicians are listed under Internal Medicine with a practice address in Warren, MI (5,741 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Warren
14.4% of these 90 clinicians have the CMS telehealth indicator.
62.2% of these 90 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.
-
Medicare Part B services
Medicare Part B services decreased 12% from 1,635 in 2017 to 1,434 in 2020.
- 2017: 1,635
- 2018: 1,686
- 2019: 1,749
- 2020: 1,434
-
Medicare-allowed amount
Medicare-allowed amount decreased 26% from $155,209 in 2017 to $114,606 in 2020.
- 2017: $155,209
- 2018: $152,489
- 2019: $141,840
- 2020: $114,606
-
Paid by Medicare
Paid by Medicare decreased 31% from $125,711 in 2017 to $86,354 in 2020.
- 2017: $125,711
- 2018: $121,039
- 2019: $108,824
- 2020: $86,354
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 77% from 5,492 in 2017 to 1,288 in 2021.
- 2017: 5,492
- 2018: 4,915
- 2019: 4,737
- 2020: 4,664
- 2021: 1,288
-
30-day fills
30-day fills decreased 73% from 11,920 in 2017 to 3,229 in 2021.
- 2017: 11,920
- 2018: 11,381
- 2019: 11,469
- 2020: 11,475
- 2021: 3,229
-
Part D drug cost
Part D drug cost decreased 77% from $289,737 in 2017 to $65,305 in 2021.
- 2017: $289,737
- 2018: $307,519
- 2019: $280,244
- 2020: $285,630
- 2021: $65,305
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $287.74 in 2019 to $13.17 in 2024.
- 2019: $287.74
- 2020: $355.88
- 2024: $13.17
Sources: CMS Medicare Physician & Other Practitioners (2020), CMS Medicare Part D Prescribers (2021), CMS Open Payments (2024), 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 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $13.17.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $13.17 |
Source: CMS Open Payments, program year 2024, 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 2016–2019 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, 2017–2020; 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 |
|---|---|---|---|---|
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
351 | 220 | $135.00 | $110.13 |
|
G0444
Annual depression screening, 5 to 15 minutes
|
232 | 232 | $32.00 | $18.10 |
|
99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
196 | 170 | $180.00 | $148.92 |
|
G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
|
183 | 183 | $182.00 | $118.42 |
|
G0008
Administration of influenza virus vaccine
|
122 | 120 | $33.00 | $17.06 |
|
90662
Influenza vaccine split virus, preservative free
|
51 | 51 | $65.00 | $60.62 |
|
90694
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage
|
40 | 40 | $65.00 | $57.95 |
|
99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
|
37 | 33 | $70.00 | $41.85 |
|
69210
Removal of impacted ear wax
|
33 | 27 | $83.18 | $49.76 |
|
99441
Telephone medical discussion with physician, 5-10 minutes
|
24 | 16 | $50.00 | $31.27 |
|
90686
Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage
|
22 | 22 | $25.00 | $19.58 |
|
90471
Administration of vaccine
|
21 | 21 | $33.00 | $14.61 |
|
90714
Diphtheria and tetanus vaccine (7 years or older)
|
21 | 21 | $35.00 | $26.75 |
|
93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
|
18 | 18 | $48.00 | $17.58 |
|
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
|
17 | 17 | $87.00 | $54.95 |
|
G0438
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
|
16 | 16 | $265.00 | $163.11 |
|
G2012
Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m servic
|
15 | 11 | $25.00 | $13.62 |
|
90674
Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free
|
12 | 12 | $35.00 | $26.79 |
|
99496
Transitional care management services for problem of high complexity
|
12 | 12 | $350.00 | $251.21 |
|
99442
Telephone medical discussion with physician, 11-20 minutes
|
11 | 11 | $80.00 | $69.10 |
Source: CMS Part B by Provider and Service, 2020; 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 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 142 | 10,282 | $1,901.33 | 60 |
| Amlodipine Besylate | Amlodipine Besylate | 96 | 7,427 | $571.43 | 40 |
| Lisinopril | Lisinopril | 82 | 6,150 | $721.30 | 38 |
| Levothyroxine Sodium | Levothyroxine Sodium | 75 | 6,052 | $1,718.08 | 38 |
| Losartan Potassium | Losartan Potassium | 65 | 4,620 | $1,200.60 | 30 |
| Metoprolol Tartrate | Metoprolol Tartrate | 60 | 4,740 | $420.90 | 29 |
| Potassium Chloride | Potassium Chloride | 41 | 2,523 | $1,470.12 | 15 |
| Metoprolol Succinate | Metoprolol Succinate | 37 | 3,210 | $913.45 | 18 |
| Simvastatin | Simvastatin | 36 | 3,240 | $686.82 | 21 |
| Pravastatin Sodium | Pravastatin Sodium | 36 | 2,640 | $771.84 | 17 |
| Metformin Hcl | Metformin Hcl | 35 | 2,910 | $292.23 | 21 |
| Hydrochlorothiazide | Hydrochlorothiazide | 34 | 2,820 | $338.48 | 16 |
| Sertraline Hcl | Sertraline Hcl | 28 | 2,455 | $368.73 | 12 |
| Furosemide | Furosemide | 26 | 1,968 | $153.65 | 16 |
| Atenolol | Atenolol | 24 | 2,160 | $319.84 | 13 |
| Omeprazole | Omeprazole | 24 | 1,620 | $327.36 | 12 |
| Telmisartan-Hydrochlorothiazid | Telmisartan/Hydrochlorothiazid | 24 | 1,260 | $1,812.56 | — |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 24 | 1,980 | $731.51 | 12 |
| Famotidine | Famotidine | 22 | 1,665 | $569.85 | — |
| Alendronate Sodium | Alendronate Sodium | 21 | 1,572 | $290.36 | — |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 20 | 1,260 | $217.54 | — |
| Januvia | Sitagliptin Phosphate | 19 | 990 | $15,066.90 | — |
| Synthroid | Levothyroxine Sodium | 19 | 1,710 | $584.12 | — |
| Telmisartan | Telmisartan | 19 | 930 | $1,068.44 | — |
| Allopurinol | Allopurinol | 18 | 1,620 | $325.85 | — |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2021; 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
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 - Sports Medicine
Doctor of Osteopathic Medicine (D.O.)
Physician Assistant
Physician Assistant
Physician Assistant
Physician Assistant (Certified)
Family Medicine - Sports Medicine
Doctor of Osteopathic Medicine (D.O.)
Physician Assistant
Physician Assistant
Physician Assistant
Physician Assistant (Certified)
Career & Practice History
NPI enumerated November 08, 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 Warren
- Dr. Radha Chitturi, MD
- Dr. Ermal Hasalliu, DO
- Dr. Michael Rottman, MD
- Dr. Barry Meyer, DO
- Dr. Jennifer Rathousky, DO
- Dr. Molly Veale, DO
Mailing Address
28800 Ryan Rd, Suite 230
Warren, MI 480924269
Phone: 5865583950