Tess M. Gessler, MPAS
Physician Assistant · Worcester, MA
Tess M. Gessler, MPAS is a physician assistant with a practice address in Worcester, Massachusetts, and NPI 1740527647, issued on Jan 11, 2013. Check the license (Massachusetts 4989, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tess M. Gessler
- Credential
- MPAS
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 4989 MA
Self-reported in NPPES; status is on the state search - Practice location
- 33 Kendall St, Worcester, MA 01605
- Phone
- (508) 334-8765
- Enumerated
- Jan 11, 2013
- Record last updated
- Feb 29, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (774) 443-7360
- Medicare enrollment
- Enrolled (PECOS I20190709000872); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 33 Kendall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tess M. Gessler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 4989Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average physician assistant in 2024
126 Medicare Part D claims for 39 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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 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
- Fairview Health ServicesBurnsville, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tess M. Gessler among 4,713 physician assistant records in Massachusetts
Tess M. Gessler, MPAS is one of 4,713 physician assistant records with a practice address in Massachusetts. 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 2013, is newer than 28% of them.
- NPI issued2013 · 28% of these records are older, 70% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2012 · median 2019 among the 3,217 with a school on file
- Record last updated2016 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
425 physician assistant records list a practice address in Worcester
They are 425 of the 13,166 NPPES records with a practice address in Worcester, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Worcester → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- John Beauchesne, PACWorcester, MA 016051881767416
- Jessica Cosenza, PAWorcester, MA 016051992895189
- David Deary, P.A.Worcester, MA 016051578524948
- Albert Drexler, PAWorcester, MA 016051467431304
- Alice Fannin, PAWorcester, MA 016051649240896
- Natasha Fortier, PA-CWorcester, MA 016051326012345
- Lindsey Jolley, PA-CWorcester, MA 016051306811690
- Amy Kellogg, PAWorcester, MA 016051861402315
Common questions
What is Tess M. Gessler, MPAS's NPI number?
Tess M. Gessler, MPAS's National Provider Identifier (NPI) is 1740527647, issued on Jan 11, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Tess M. Gessler, MPAS located?
The NPPES record lists a practice address at 33 Kendall St, Worcester, MA, 01605. Phone: (508) 334-8765. Providers update this record themselves, so call before visiting.
How can I verify Tess M. Gessler, MPAS's license?
NPPES lists Massachusetts license number 4989, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Tess M. Gessler, MPAS prescribe under Medicare Part D?
In 2024, Tess M. Gessler, MPAS had 126 Medicare Part D claims for 39 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Tess M. Gessler, MPAS'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.