Sarah Kassaby, M.D.
Cytopathology Physician · Johnson City, TN
Sarah Kassaby, M.D. is a cytopathology physician with a practice address in Johnson City, Tennessee, and NPI 1922428689, issued on Apr 22, 2014. Check the license (Tennessee MD0000056897, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Sarah Kassaby
- Credential
- M.D.
- Primary taxonomy
- Cytopathology Physician 207ZC0500X
- License number
- MD0000056897 TN
Self-reported in NPPES; status is on the state search - Practice location
- 2400 Susannah St Ste A, Johnson City, TN 37601
- Phone
- (423) 283-4734
- Enumerated
- Apr 22, 2014
- Record last updated
- Oct 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (423) 283-4736
- Medicare enrollment
- Enrolled (PECOS I20200828001014); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cytopathology physician records → All 10 in Tennessee → Look up another NPI →
Also registered at 2400 Susannah St Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yasmin Elshenawy, M.DCytopathology Physician1609031608
- Susan Rollins, MDCytopathology Physician1578546370
- Janet Stastny, DOCytopathology Physician1649254574
Verify Sarah Kassaby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license MD0000056897Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Outpatient Cytopathology CenterJohnson City, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah Kassaby among 10 cytopathology physician records in Tennessee
Sarah Kassaby, M.D. is one of 10 cytopathology physician records with a practice address in Tennessee. 50% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 70% of them.
- NPI issued2014 · 70% of these records are older, 10% newer
- In a Medicare fileYes · 50% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Record last updated2020 · 80% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cytopathology Physician providers in Tennessee
There are 10 cytopathology physician records in Tennessee.
All 10 in Tennessee → Every provider in Johnson City → Cytopathology Physician nationwide →
The 8 cytopathology physician records with the nearest ZIP codes
- Yasmin Elshenawy, M.DJohnson City, TN 376011609031608
- Susan Rollins, MDJohnson City, TN 376011578546370
- Janet Stastny, DOJohnson City, TN 376011649254574
- David Gilliam, MDWalland, TN 378861306884168
- Daniel Snyder, D.O.Knoxville, TN 379221114339090
- Joyce Johnson, MDNashville, TN 372321093814428
- Andrew Stanton, CT(ASPCP)CMNashville, TN 372121043195928
- William Moss, M.D.Bartlett, TN 381331588995716
Common questions
What is Sarah Kassaby, M.D.'s NPI number?
Sarah Kassaby, M.D.'s National Provider Identifier (NPI) is 1922428689, issued on Apr 22, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Kassaby, M.D. located?
The NPPES record lists a practice address at 2400 Susannah St Ste A, Johnson City, TN, 37601. Phone: (423) 283-4734. Providers update this record themselves, so call before visiting.
How can I verify Sarah Kassaby, M.D.'s license?
NPPES lists Tennessee license number MD0000056897, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Sarah Kassaby, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.