Sarah B. Clark, MD
Cytopathology Physician · Naperville, IL
Sarah B. Clark, MD is a cytopathology physician with a practice address in Naperville, Illinois, and NPI 1376621300, issued on Nov 1, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Sarah B. Clark
- Credential
- MD
- Primary taxonomy
- Cytopathology Physician 207ZC0500X
- Practice location
- 801 S Washington Street, Naperville, IL 60566
- Phone
- (630) 355-0450
- Enumerated
- Nov 1, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (630) 527-3911
- Medicaid ID
- 0361068811 IL
- Medicare enrollment
- Enrolled (PECOS I20101217000819); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 1996
- Entity
- Type 1 · individual
8 nearest cytopathology physician records → All 25 in Illinois → Look up another NPI →
Also registered at 801 S Washington Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Anderson, MDBlood Banking & Transfusion Medicine Physician1396823290
- Miguel Farolan, MDAnatomic Pathology & Clinical Pathology Physician1821176850
- Cathryn Goldberg, MDHematology (Pathology) Physician1558449587
- Rohit Gupta, MDHematology (Pathology) Physician1649358672
- Dwight Morrow, MDAnatomic Pathology & Clinical Pathology Physician1730267766
- Theodore Troe, MDAnatomic Pathology & Clinical Pathology Physician1467530493
Verify Sarah B. Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Laboratory And Pathology Diagnostics LLCNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah B. Clark among 25 cytopathology physician records in Illinois
Sarah B. Clark, MD is one of 25 cytopathology physician records with a practice address in Illinois. 60% 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 16% of them.
- NPI issued2006 · 16% of these records are older, 44% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated1996 · median 2004 among the 13 with a school on file
- Record last updated2025 · 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 207ZC0500X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cytopathology Physician providers in Illinois
There are 25 cytopathology physician records in Illinois.
All 25 in Illinois → Every provider in Naperville → Cytopathology Physician nationwide →
The 8 cytopathology physician records with the nearest ZIP codes
- Bonnie Choy, M.D.Chicago, IL 606111316386733
- Charles Clevenger, MDChicago, IL 606111598728933
- Ritu Nayar, MDChicago, IL 606111780611632
- Muge Turkyilmaz, MDHinsdale, IL 605211336107465
- Nicole Winkelmann, MDChicago, IL 606111922749324
- Kimberly Kado, MDChicago, IL 606121447743141
- Ujalla Sheikh, MDChicago, IL 606121811458862
- Satinder Singh, M.D.Chicago, IL 606121679694707
Common questions
What is Sarah B. Clark, MD's NPI number?
Sarah B. Clark, MD's National Provider Identifier (NPI) is 1376621300, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sarah B. Clark, MD located?
The NPPES record lists a practice address at 801 S Washington Street, Naperville, IL, 60566. Phone: (630) 355-0450. Providers update this record themselves, so call before visiting.
How can I verify Sarah B. Clark, MD's license?
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.
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.