Margaret Isely Dauphin-Van Dyk, M.D.
Specialist · Chicago, IL
Margaret Isely Dauphin-Van Dyk, M.D. is a specialist with a practice address in Chicago, Illinois, and NPI 1801852926, issued on Apr 26, 2006. Check the license (Illinois 036059705, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Isely Dauphin-Van Dyk
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 036059705 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2800 N Sheridan RD Ste 406, Chicago, IL 60657
- Phone
- (312) 201-0044
- Enumerated
- Apr 26, 2006
- Record last updated
- Aug 31, 2022
- Fax
- (773) 697-4628
- Medicaid ID
- 036059705 IL
- Medicare enrollment
- Enrolled (PECOS I20040927001011); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,154 in Illinois → Look up another NPI →
Verify Margaret Isely Dauphin-Van Dyk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 036059705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% more Medicare Part D claims than the average specialist in 2024
2,202 Medicare Part D claims for 85 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium185 claims
- Amlodipine Besylate176 claims
- Metoprolol Succinate157 claims
- Furosemide142 claims
- Simvastatin126 claims
- Losartan Potassium105 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $14.92
1 payment: food and beverage; the largest payer was Hikma Pharmaceuticals USA. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Margaret Isely Dauphin-Van Dyk among 1,154 specialist records in Illinois
Margaret Isely Dauphin-Van Dyk, M.D. is one of 1,154 specialist records with a practice address in Illinois. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1978 · median 1988 among the 127 with a school on file
- Record last updated2022 · 84% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Illinois
There are 1,154 specialist records in Illinois.
All 1,154 in Illinois → Every provider in Chicago → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Babak Abdollahshamshirsaz, M.D.Chicago, IL 606571447585765
- Ina Beller, LCSWChicago, IL 606571164600029
- Juan Chediak, M.D.Chicago, IL 606571720098361
- Angela Frank, M.D.Chicago, IL 606571265485346
- Martin Greenberg, M.DChicago, IL 606571669698528
- Waldo Harvey, MDChicago, IL 606571942392055
- Noel Labak, MASSAGE THERAPISTChicago, IL 606571245402213
- Benjamin Matsumoto, MDChicago, IL 606571164554473
Common questions
What is Margaret Isely Dauphin-Van Dyk, M.D.'s NPI number?
Margaret Isely Dauphin-Van Dyk, M.D.'s National Provider Identifier (NPI) is 1801852926, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Isely Dauphin-Van Dyk, M.D. located?
The NPPES record lists a practice address at 2800 N Sheridan RD Ste 406, Chicago, IL, 60657. Phone: (312) 201-0044. Providers update this record themselves, so call before visiting.
How can I verify Margaret Isely Dauphin-Van Dyk, M.D.'s license?
NPPES lists Illinois license number 036059705, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Isely Dauphin-Van Dyk, M.D. prescribe under Medicare Part D?
In 2024, Margaret Isely Dauphin-Van Dyk, M.D. had 2,202 Medicare Part D claims for 85 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.