Patricia Merwick, M.D.
Geriatric Medicine (Internal Medicine) Physician · Elmhurst, IL
Patricia Merwick, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Elmhurst, Illinois, and NPI 1336117084, issued on Mar 9, 2006. Check the license (Illinois 036045874, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Patricia Merwick
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 036045874 IL
Self-reported in NPPES; status is on the state search - Practice location
- 533 W North Ave, Elmhurst, IL 60126
- Phone
- (630) 279-8771
- Enumerated
- Mar 9, 2006
- Entity
- Type 1 · individual
Also registered at 533 W North Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janyce Agruss, DNSC, APN, FNPNurse Practitioner1821133539
- Liz Buhai-Jacobus, PSY.D.Clinical Psychologist1457499188
- Annemarie Dietzen, DPTPhysical Therapist1063645216
- Anthony Dohse, DDSOral and Maxillofacial Surgery (Dentist)1518039718
- Sophia KecalaPsychiatry Physician1790390722
- Zenon Kecala, M.D.Internal Medicine Physician1154338895
Verify Patricia Merwick 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 036045874Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Geriatric Medicine (Internal Medicine) Physician providers in Illinois
There are 179 geriatric medicine (internal medicine) physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other geriatric medicine (internal medicine) physician records in Illinois
- Jabeen Abutalib, M.D.North Chicago, IL1750505608
- Ala Albazzaz, M.D.Glen Ellyn, IL1134362833
- Ann Allie, M.D.Chicago, IL1619162955
- Robert Alter, M.D.Chicago, IL1821064585
- Alejandro Aparicio, M.D.Chicago, IL1669699716
- Kimberley Armour, APRN FPA, AGPCNP-CAuburn, IL1609553007
- Khaja Asadullah, M.D.Frankfort, IL1578515409
- Joseph Asbury, M.D.Chicago, IL1730114612
- Hima Atluri, MDDecatur, IL1609866052
- Vyjayanthi Atluri, MDBurr Ridge, IL1023067311
Common questions
What is Patricia Merwick, M.D.'s NPI number?
Patricia Merwick, M.D.'s National Provider Identifier (NPI) is 1336117084, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patricia Merwick, M.D. located?
The NPPES record lists a practice address at 533 W North Ave, Elmhurst, IL, 60126. Phone: (630) 279-8771. Providers update this record themselves, so call before visiting.
How can I verify Patricia Merwick, M.D.'s license?
NPPES lists Illinois license number 036045874, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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) 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 27, 2026.