Physician Profile
Douglas L. Duvel, M.D. practices internal medicine in Chicago, IL. Douglas is a 1991 graduate of University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb). Medicare claims data shows Douglas provided 1,235 services to 1,001 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, 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', and annual alcohol misuse screening, 5 to 15 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
201 E HURON ST 12-205
Chicago, IL 60611
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
1,235 services · 1,001 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Influenza vaccine, inactivated | Treatment | 90653 |
46 | More often than most peers in Internal Medicine |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
25 | As often as other peers in Internal Medicine |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
25 | As often as other peers in Internal Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
217 | More often than most peers in Internal Medicine |
| 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' | Billing code | G2211 |
175 | As often as other peers in Internal Medicine |
| Annual alcohol misuse screening, 5 to 15 minutes | Billing code | G0442 |
137 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
137 | As often as other peers in Internal Medicine |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
121 | As often as other peers in Internal Medicine |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
120 | More often than most peers in Internal Medicine |
| Hemoglobin a1c level | Lab test | 83036 |
92 | As often as other peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Douglas L. Duvel is an internist in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Douglas L. Duvel is listed at 201 E Huron St 12-205, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (312) 944-0688. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Douglas L. Duvel's National Provider Identifier is 1275699811. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Douglas L. Duvel attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
Douglas L. Duvel has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Douglas L. Duvel provides treatments such as influenza vaccine, inactivated and sarscv2 vac 30mcg trs-suc im, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Douglas L. Duvel. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.