NPPES file of Aug 9, 2026

Robert F. King, MD

Internal Medicine Physician · Downers Grove, IL

Robert F. King, MD is an internal medicine physician with a practice address in Downers Grove, Illinois, and NPI 1104892041, issued on Feb 28, 2006. Check the license (Illinois 036083172, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104892041
Name
Robert F. King
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036083172 IL
Self-reported in NPPES; status is on the state search
Practice location
3743 Highland Ave Ste 1001, Downers Grove, IL 60515
Phone
(630) 963-9667
Enumerated
Feb 28, 2006
Record last updated
Jun 5, 2025
Fax
(630) 963-9936
Medicaid ID
036083172 IL
Medicare enrollment
Enrolled (PECOS I20100113000841); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3743 Highland Ave Ste 1001

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rizwan Mahmood, MDInternal Medicine Physician1699337683
  2. Monica Martin, MDInternal Medicine Physician1881693315
  3. Michelle Salerno-Shortt, RD,LDN,CDERegistered Dietitian1639233695
  4. Brian Sklar, M.D.Obstetrics & Gynecology Physician1740270024
  5. Matthew WilkinsFamily Medicine Physician1912467861

Verify Robert F. King in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036083172
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.3 times the Medicare Part D claims of the average internal medicine physician in 2024

7,263 Medicare Part D claims for 645 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 252 claims were for opioids.

  1. Robert King7,263
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium403 claims
  2. Losartan Potassium300 claims
  3. Levothyroxine Sodium248 claims
  4. Amlodipine Besylate233 claims
  5. Tamsulosin Hcl192 claims
  6. Metformin Hcl188 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: $68.77

1 payment: food and beverage; the largest payer was AngioDynamics, 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.

  1. Robert King$68.77
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationNaperville, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Robert F. King among 7,238 internal medicine physician records in Illinois

Robert F. King, MD 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1988 · median 2003 among the 3,580 with a school on file
  • Record last updated2025 · 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).

33 internal medicine physician records list a practice address in Downers Grove

They are 33 of the 1,899 NPPES records with a practice address in Downers Grove, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Susan Badri, M.D.Downers Grove, IL 605151912985722
  2. Gigi Ip, MDDowners Grove, IL 605151376519777
  3. David Labotka, MDDowners Grove, IL 605151205803178
  4. Barbara Loeb, MDDowners Grove, IL 605151619976396
  5. Monica Martin, MDDowners Grove, IL 605151881693315
  6. Richard McPartlin, MDDowners Grove, IL 605151700853140
  7. Maziyar Mirhosseini, M.D.Downers Grove, IL 605151508870809
  8. Steven Schmitz, MDDowners Grove, IL 605151720056302

Common questions

What is Robert F. King, MD's NPI number?

Robert F. King, MD's National Provider Identifier (NPI) is 1104892041, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert F. King, MD located?

The NPPES record lists a practice address at 3743 Highland Ave Ste 1001, Downers Grove, IL, 60515. Phone: (630) 963-9667. Providers update this record themselves, so call before visiting.

How can I verify Robert F. King, MD's license?

NPPES lists Illinois license number 036083172, 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.

How much does Robert F. King, MD prescribe under Medicare Part D?

In 2024, Robert F. King, MD had 7,263 Medicare Part D claims for 645 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.