Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Daniel M Derman , MD

Internal Medicine โ€ข Chicago, IL

Active NPI 1912947458 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

201 E Huron St, 12th Floor, Suite 105
Chicago, IL 606113197

Call 3129263642 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

201 E Huron St
12th Floor, Suite 105

Chicago, IL 606113197

Telephone 3129263642
Organization at the Same NPPES Address or Phone
Edward J. Olinger, M.d., S.c. Facility NPI 1558346890

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Northwestern Medical Faculty Foundation. 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

Medical School

University Of Illinois College Of Med (Chi/peor/rock/chm-Urb)

Graduation Year

1984

Medicare patients

122 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $24,478 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.

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 โ€“ by Provider and Service, 2024.

Paid by Medicare

About $22,591 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

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 โ€“ by Provider and Service, 2024.

30-day fills

2,995 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

$44,587 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

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 โ€“ by Provider and Drug, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019โ€“2025.

Guide: How to read an Open Payments record

Years since graduation

42 years (graduated 1984)

CMS Doctors and Clinicians data list 1984 as the year this clinician finished professional 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.

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, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Derman 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.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Derman 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.

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.

Guide: What ordering and referring status means

Compared with the same specialty in Chicago and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Internal Medicine in Chicago, IL (2024, 1,008 clinicians with data). Median for this group: 406. Middle half: 157 to 820.

Fewer Medicare Part B services than 65% 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.

Medicare-allowed amount

A lower Medicare-allowed amount than 60% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,008 clinicians with data). Median for this group: $41,573. Middle half: $14,662 to $79,189.

A lower Medicare-allowed amount than 75% 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.

Paid by Medicare

Close to the middle for clinicians listed under Internal Medicine in Chicago, IL (2024, 1,008 clinicians with data). Median for this group: $31,519. Middle half: $10,954 to $62,185.

A lower Medicare payment amount than 70% 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.

Medicare Part D prescriptions

More Part D prescriptions than 60% of clinicians listed under Internal Medicine in Chicago, IL (2024, 1,269 clinicians with data). Median for this group: 474. Middle half: 74 to 2,358.

Close to the middle for 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.

Part D drug cost

Close to the middle for clinicians listed under Internal Medicine in Chicago, IL (2024, 1,269 clinicians with data). Median for this group: $40,678. Middle half: $1,543 to $232,098.

Close to the middle for 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.

2,870 active clinicians are listed under Internal Medicine with a practice address in Chicago, IL (7,245 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Chicago

13.3% of these 2,870 clinicians have the CMS telehealth indicator.

38.5% of these 2,870 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“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 โ€“ by Provider and Service data, 2017โ€“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
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
82 82 $373.00 $138.97
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
75 72 $140.00 $15.27
81002 Urinalysis, manual test
72 69 $18.00 $3.37
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
46 30 $132.00 $60.13
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
20 19 $219.00 $96.69
90662 Influenza vaccine split virus, preservative free
16 16 $110.00 $81.20
G0008 Administration of influenza virus vaccine
16 16 $57.00 $33.70
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
16 16 $452.00 $176.88
G0403 Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report
13 13 $140.00 $15.37
90480 Admn sarscov2 vacc 1 dose
11 11 $88.00 $44.94
91320 Sarscv2 vac 30mcg trs-suc im
11 11 $206.00 $148.36

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.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Losartan Potassium Losartan Potassium 165 14,682 $1,736.31 45
Atorvastatin Calcium Atorvastatin Calcium 144 12,956 $1,831.34 40
Rosuvastatin Calcium Rosuvastatin Calcium 82 7,400 $1,189.50 24
Amlodipine Besylate Amlodipine Besylate 59 5,220 $481.78 17
Levothyroxine Sodium Levothyroxine Sodium 52 4,540 $918.32 14
Allopurinol Allopurinol 51 3,620 $627.24 12
Chlorthalidone Chlorthalidone 50 4,371 $833.82 16
Metoprolol Succinate Metoprolol Succinate 50 4,440 $1,140.61 14
Hydrochlorothiazide Hydrochlorothiazide 37 3,370 $207.16 11
Potassium Chloride Potassium Chloride 29 2,205 $591.45 โ€”
Zolpidem Tartrate Zolpidem Tartrate 29 1,170 $158.24 โ€”
Simvastatin Simvastatin 27 2,430 $149.94 โ€”
Omeprazole Omeprazole 25 2,021 $204.88 โ€”
Metformin Hcl Er Metformin Hcl 23 2,025 $238.02 โ€”
Valacyclovir Valacyclovir Hcl 22 1,018 $626.10 โ€”
Alprazolam Alprazolam 19 575 $116.30 โ€”
Tamsulosin Hcl Tamsulosin Hcl 19 1,620 $410.15 โ€”
Esomeprazole Magnesium Esomeprazole Magnesium 19 1,065 $484.16 โ€”
Pravastatin Sodium Pravastatin Sodium 18 1,660 $200.06 โ€”
Triamterene-Hydrochlorothiazid Triamterene/Hydrochlorothiazid 17 1,530 $335.68 โ€”
Azithromycin Azithromycin 16 78 $111.24 13
Finasteride Finasteride 16 1,320 $428.10 โ€”
Lisinopril Lisinopril 15 1,350 $145.53 โ€”
Metoprolol Tartrate Metoprolol Tartrate 13 1,135 $91.05 โ€”
Clonazepam Clonazepam 13 855 $366.22 โ€”

(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

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES IL 036-072292

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
036-072292 (IL)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20100817001408

Enrollment State Jurisdiction

IL

PECOS Control ID

7810894672

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

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

Northwestern Medical Faculty Foundation

675 N St Clair, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

4732 N Lincoln Ave, Chicago, IL 606258561

Phone: 8474752273

Northwestern Medical Faculty Foundation

675 N Saint Clair St, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

350 S Waukegan Rd, Deerfield, IL 600155239

Phone: 3129266146

Northwestern Medical Faculty Foundation

635 N Dearborn St, Chicago, IL 606544618

Phone: 3129260404

Northwestern Medical Faculty Foundation

1333 W Belmont Ave, Chicago, IL 606575785

Northwestern Medical Faculty Foundation

660 N Westmoreland Rd, Lake Forest, IL 600451673

Phone: 3129266146

Northwestern Medical Faculty Foundation

633 N Saint Clair St, Chicago, IL 606113234

Northwestern Medical Faculty Foundation

350 S Waukegan, Deerfield, IL 600155239

Phone: 3129263107

Northwestern Medical Faculty Foundation

4732 N Lincoln Ave, Chicago, IL 606258561

Phone: 3129266000

Northwestern Medical Faculty Foundation

885 Roosevelt Rd, Glen Ellyn, IL 601376141

Northwestern Medical Faculty Foundation

1630 Sherman Ave, Evanston, IL 602013711

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

39 listed
Dr. Kevin Andrus , DDS

Dentist - Oral and Maxillofacial Surgery

NPI 1689797243

Doctor of Dental Surgery

Dr. Senta Berggruen , MD

Radiology - Diagnostic Radiology

NPI 1891749776

Doctor of Medicine (M.D.)

Dr. Eric Brehm , MD

Internal Medicine

NPI 1780639930

Doctor of Medicine (M.D.)

Dr. Gregory Brisson , MD

Internal Medicine

NPI 1891740627

Doctor of Medicine (M.D.)

Martha Buechner

Nurse Anesthetist, Certified Registered

NPI 1770906497
Blake Butler

Anesthesiology

NPI 1548656135

Career & Practice History

NPI enumerated June 06, 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.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1912947458
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 06, 2006
Last Update: September 15, 2011
Sole Proprietor: No

Other Internal Medicine Providers in Chicago

All Internal Medicine Providers in Chicago

Mailing Address

201 E Huron St, 12th Floor, Suite 105

Chicago, IL 606113197

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.