Mark Sawyer, DDS
Dentist · Chicago, IL
Mark Sawyer, DDS is a dentist with a practice address in Chicago, Illinois, and NPI 1891798708, issued on May 24, 2005. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Sawyer
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- Practice location
- 7428 N Western Ave, Chicago, IL 60645
- Phone
- (773) 761-7442
- Enumerated
- May 24, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (773) 761-7499
- Entity
- Type 1 · individual
8 nearest dentist records → All 4,522 in Illinois → Look up another NPI →
Verify Mark Sawyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average dentist in 2024
27 Medicare Part D claims for 18 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin14 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.
Mark Sawyer among 4,522 dentist records in Illinois
Mark Sawyer, DDS is one of 4,522 dentist records with a practice address in Illinois. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,148 dentist records list a practice address in Chicago
They are 1,148 of the 63,379 NPPES records with a practice address in Chicago, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Chicago → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Fratmishin Alexander, DMDChicago, IL 606451104864297
- Gregory Chipp, DDSChicago, IL 606451861540171
- Maria Contos, D.M.D.Chicago, IL 606451992014716
- Irena Hyvel, DDSChicago, IL 606451750521993
- Malik Khan, DDSChicago, IL 606451063060275
- David Margulis, DMDChicago, IL 606451033270764
- Alexander Shakhet, DDSChicago, IL 606451134269731
- Andrew ShinChicago, IL 606451003423633
Common questions
What is Mark Sawyer, DDS's NPI number?
Mark Sawyer, DDS's National Provider Identifier (NPI) is 1891798708, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Sawyer, DDS located?
The NPPES record lists a practice address at 7428 N Western Ave, Chicago, IL, 60645. Phone: (773) 761-7442. Providers update this record themselves, so call before visiting.
How can I verify Mark Sawyer, DDS's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Sawyer, DDS prescribe under Medicare Part D?
In 2024, Mark Sawyer, DDS had 27 Medicare Part D claims for 18 beneficiaries; the average among dentist prescribers was 86. 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.