NPPES file of Aug 9, 2026

Ahsan M. Basha, MD

Medical Oncology Physician · Watseka, IL

Ahsan M. Basha, MD is a medical oncology physician with a practice address in Watseka, Illinois, and NPI 1043283849, issued on Feb 10, 2006. Check the license (Illinois 036093863, 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
1043283849
Name
Ahsan M. Basha
Credential
MD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
036093863 IL
30683 AZ
Self-reported in NPPES; status is on the state search
Practice location
1490 E Walnut St Ste A, Watseka, IL 60970
Phone
(815) 432-0250
Enumerated
Feb 10, 2006
Record last updated
Mar 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(815) 432-5217
Medicaid IDs
036093863 IL
71613601 AZ
Medicare enrollment
Enrolled (PECOS I20110415000514); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1993
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 1490 E Walnut St Ste A

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

  1. Hamzeh Badwan, MDFamily Medicine Physician1205333994
  2. Erin Dean, FNP-BCFamily Nurse Practitioner1316335870
  3. Ramanpreet Grewal, MDFamily Medicine Physician1407339286
  4. Jessica Morales, BSN, MSN, NP-CNurse Practitioner1770982464
  5. Brittani Seagren, APRN-NP, FNP-CFamily Nurse Practitioner1467961326
  6. Katherine Van Hoveln, NP-CFamily Nurse Practitioner1538720008

Verify Ahsan M. Basha 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 036093863
    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

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2.2 times the Medicare Part D claims of the average medical oncology physician in 2024

1,575 Medicare Part D claims for 235 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 189 claims were for opioids.

  1. Ahsan Basha1,575
  2. Specialty average703

Most prescribed

  1. Prochlorperazine Maleate94 claims
  2. Anastrozole90 claims
  3. Hydrocodone-Acetaminophen87 claims
  4. Ondansetron Hcl85 claims
  5. Dexamethasone79 claims
  6. Acyclovir74 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: $415.23

20 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ahsan Basha$415
  2. Specialty average$11,773

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. Riverside Health SystemWillmington, IL

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

Ahsan M. Basha among 182 medical oncology physician records in Illinois

Ahsan M. Basha, MD is one of 182 medical oncology physician records with a practice address in Illinois. 83% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 43% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1993 · median 2000 among the 132 with a school on file
  • Record last updated2021 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Illinois

There are 182 medical oncology physician records in Illinois.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Cassandra Lacher, DOBourbonnais, IL 609141467746651
  2. Mehmet Sipahi, MDBourbonnais, IL 609141467556837
  3. Alhareth Alsayed, M.DSterling, IL 610811447601059
  4. Hosne Begum, MDRockford, IL 611031508942202
  5. Meraj Aziz, MDRockford, IL 611081689134017
  6. Alyssa Ceilesh, D.O.Rockford, IL 611081407273774
  7. Kent Hoskins, M.D.Rockford, IL 611081255363529
  8. Mete Korkmaz, M.D.Rockford, IL 611081902833999

Common questions

What is Ahsan M. Basha, MD's NPI number?

Ahsan M. Basha, MD's National Provider Identifier (NPI) is 1043283849, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ahsan M. Basha, MD located?

The NPPES record lists a practice address at 1490 E Walnut St Ste A, Watseka, IL, 60970. Phone: (815) 432-0250. Providers update this record themselves, so call before visiting.

How can I verify Ahsan M. Basha, MD's license?

NPPES lists Illinois license number 036093863, 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 Ahsan M. Basha, MD prescribe under Medicare Part D?

In 2024, Ahsan M. Basha, MD had 1,575 Medicare Part D claims for 235 beneficiaries; the average among medical oncology physician prescribers was 703. 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.