William K. Lanker, MD
Emergency Medicine Physician · Monticello, IL
William K. Lanker, MD is an emergency medicine physician with a practice address in Monticello, Illinois, and NPI 1568429009, issued on Apr 27, 2006. Check the license (Illinois 036069050, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William K. Lanker
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036069050 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1002 Medical Center Dr, Monticello, IL 61856
- Phone
- (217) 762-2518
- Enumerated
- Apr 27, 2006
- Record last updated
- Apr 23, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (217) 762-5261
- Medicaid ID
- 036069050 IL
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 1002 Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christy Barre, NPNurse Practitioner1659451235
- Felicia Clark, PA-CPhysician Assistant1215556055
- Douglas Ellis, MDFamily Medicine Physician1992790786
- Ann Marty, MDFamily Medicine Physician1215958905
- Danny McFarlin, PAPhysician Assistant1538139225
- Antonio Serna, APRNFamily Nurse Practitioner1619792116
Verify William K. Lanker 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 036069050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average emergency medicine physician in 2024
579 Medicare Part D claims for 150 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium44 claims
- Levothyroxine Sodium42 claims
- Amlodipine Besylate32 claims
- Metoprolol Succinate29 claims
- Potassium Chloride28 claims
- Lisinopril22 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.
William K. Lanker among 3,291 emergency medicine physician records in Illinois
William K. Lanker, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 68% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2015 · 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 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 emergency medicine physician record lists a practice address in Monticello
They are 1 of the 104 NPPES records with a practice address in Monticello, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Monticello → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Mary Kenworthy, D.O.Danville, IL 618321205123361
- Gregory Smith, MDDanville, IL 618321982662060
- Maher Ahmad, M.D.Champaign, IL 618201164422515
- Namrata SinghUrbana, IL 618021619544392
- Nicole Blum, MDUrbana, IL 618011285215616
- Mary Terese Couture, DOUrbana, IL 618011962064782
- Sarah Graff, MDUrbana, IL 618011285215459
- Dylan Graff, MDUrbana, IL 618011588222962
Common questions
What is William K. Lanker, MD's NPI number?
William K. Lanker, MD's National Provider Identifier (NPI) is 1568429009, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William K. Lanker, MD located?
The NPPES record lists a practice address at 1002 Medical Center Dr, Monticello, IL, 61856. Phone: (217) 762-2518. Providers update this record themselves, so call before visiting.
How can I verify William K. Lanker, MD's license?
NPPES lists Illinois license number 036069050, 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 William K. Lanker, MD prescribe under Medicare Part D?
In 2024, William K. Lanker, MD had 579 Medicare Part D claims for 150 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.