Heidi Elizabeth Chatham, M.D
Family Medicine Physician · Buffalo Grove, IL
Heidi Elizabeth Chatham, M.D is a family medicine physician with a practice address in Buffalo Grove, Illinois, and NPI 1659509834, issued on Jun 26, 2009. Check the license (Illinois 036128521, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Heidi Elizabeth Chatham
- Credential
- M.D
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036128521 IL
57078 WI
Self-reported in NPPES; status is on the state search - Practice location
- 15 S Mchenry RD, Buffalo Grove, IL 60089
- Phone
- (847) 618-0351
- Enumerated
- Jun 26, 2009
- Record last updated
- Oct 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (847) 618-0766
- Medicare enrollment
- Enrolled (PECOS I20140903001620); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 15 S Mchenry RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William AquinoPhysical Therapist1427547181
- Reena Blesson, APN-CNPNurse Practitioner1619221900
- Taylor Burke, APN-CNPNurse Practitioner1982338844
- Daniel Cacioppo, MDNeurology Physician1083662613
- Caitlin Daab, MDFamily Medicine Physician1326781394
- Christian Daniels, M.D.Family Medicine Physician1063490605
Verify Heidi Elizabeth Chatham 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 036128521Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average family medicine physician in 2024
5,947 Medicare Part D claims for 476 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 228 claims were for opioids.
Most prescribed
- Levothyroxine Sodium379 claims
- Atorvastatin Calcium339 claims
- Amlodipine Besylate214 claims
- Lisinopril212 claims
- Alprazolam178 claims
- Losartan Potassium151 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.
The MIPS final score for 2023 (Medicare payment program): 89.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Endeavor Health Medical GroupBuffalo Grove, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heidi Elizabeth Chatham among 6,215 family medicine physician records in Illinois
Heidi Elizabeth Chatham, M.D is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 43% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2008 · median 2006 among the 3,714 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 family medicine physician records list a practice address in Buffalo Grove
They are 22 of the 868 NPPES records with a practice address in Buffalo Grove, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Buffalo Grove → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Zishan Alam, D.O.Buffalo Grove, IL 600891295786754
- Hong Chen, MDBuffalo Grove, IL 600891053587964
- Christian Daniels, M.D.Buffalo Grove, IL 600891063490605
- Aleksandr Galperin, MDBuffalo Grove, IL 600891902810823
- Alexander Garibashvily, M.D.Buffalo Grove, IL 600891902814452
- Helen Gitlevich, M.D.Buffalo Grove, IL 600891821223702
- Irina Harag, M.D.Buffalo Grove, IL 600891851393334
- Robert Hughes, MDBuffalo Grove, IL 600891679505218
Common questions
What is Heidi Elizabeth Chatham, M.D's NPI number?
Heidi Elizabeth Chatham, M.D's National Provider Identifier (NPI) is 1659509834, issued on Jun 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Heidi Elizabeth Chatham, M.D located?
The NPPES record lists a practice address at 15 S Mchenry RD, Buffalo Grove, IL, 60089. Phone: (847) 618-0351. Providers update this record themselves, so call before visiting.
How can I verify Heidi Elizabeth Chatham, M.D's license?
NPPES lists Illinois license number 036128521, 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 Heidi Elizabeth Chatham, M.D prescribe under Medicare Part D?
In 2024, Heidi Elizabeth Chatham, M.D had 5,947 Medicare Part D claims for 476 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Heidi Elizabeth Chatham, M.D's MIPS final score?
The 2023 MIPS final score is 89.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.