David Gerard De Marco, M.D.
Internal Medicine Physician · Maywood, IL
David Gerard De Marco, M.D. is an internal medicine physician with a practice address in Maywood, Illinois, and NPI 1407064611, issued on May 19, 2007. Check the license (Illinois 036090058, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David Gerard De Marco
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036090058 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2160 S 1St Ave, Maywood, IL 60153
- Phone
- (708) 216-8757
- Enumerated
- May 19, 2007
- Record last updated
- Jun 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
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Verify David Gerard De Marco in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036090058Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $20.66
1 payment: food and beverage; the largest payer was Pfizer Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
David Gerard De Marco among 7,238 internal medicine physician records in Illinois
David Gerard De Marco, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 55% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2021 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
257 internal medicine physician records list a practice address in Maywood
They are 257 of the 2,572 NPPES records with a practice address in Maywood, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Maywood → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Boblick, MDMaywood, IL 601531932173267
- James Boblick, MDMaywood, IL 601531386618429
- Bradley Clifford, MDMaywood, IL 601531912971227
- Josephine Dlugopolski-Gach, MDMaywood, IL 601531679543151
- Kevin Embach, M.D.Maywood, IL 601531437151974
- Maureen Fearon, MDMaywood, IL 601531144294463
- Elizabeth Frye, MDMaywood, IL 601531295709509
- Sam Hung, MDMaywood, IL 601531750352753
Common questions
What is David Gerard De Marco, M.D.'s NPI number?
David Gerard De Marco, M.D.'s National Provider Identifier (NPI) is 1407064611, issued on May 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David Gerard De Marco, M.D. located?
The NPPES record lists a practice address at 2160 S 1St Ave, Maywood, IL, 60153. Phone: (708) 216-8757. Providers update this record themselves, so call before visiting.
How can I verify David Gerard De Marco, M.D.'s license?
NPPES lists Illinois license number 036090058, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.