Elizabeth Merriam Shor, PA-C
Physician Assistant · Arlington, MA
Elizabeth Merriam Shor, PA-C is a physician assistant with a practice address in Arlington, Massachusetts, and NPI 1801145735, issued on Sep 6, 2012. Check the license (Massachusetts PA4533, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Merriam Shor
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA4533 MA
Self-reported in NPPES; status is on the state search - Practice location
- 11 Water St, Arlington, MA 02476
- Phone
- (781) 648-9700
- Enumerated
- Sep 6, 2012
- Record last updated
- Jan 8, 2026
- Medicare enrollment
- Enrolled (PECOS I20121226000310); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 11 Water St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Elizabeth Merriam Shor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA4533Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average physician assistant in 2024
189 Medicare Part D claims for 46 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 26 claims were for opioids.
Most prescribed
- Clonazepam13 claims
- Morphine Sulfate Er11 claims
- Oxycodone-Acetaminophen11 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.
Bills Medicare through one group practice
- Family Practice Group PCArlington, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth Merriam Shor among 4,713 physician assistant records in Massachusetts
Elizabeth Merriam Shor, PA-C 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 2012, is newer than 25% of them.
- NPI issued2012 · 25% of these records are older, 72% 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 updated2026 · 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).
11 physician assistant records list a practice address in Arlington
They are 11 of the 974 NPPES records with a practice address in Arlington, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Arlington → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Heather Becker, PAArlington, MA 024761962403634
- Jameson Bell, PA-CArlington, MA 024761689953465
- Casey Gaffney, PA-CArlington, MA 024761194191221
- Karen Hinchen, PAArlington, MA 024761700887619
- Vasin PalanukornArlington, MA 024761477172120
- Ellen Seitelman, PA-CArlington, MA 024761629095641
- Eva Siepka, P.A.Arlington, MA 024761467677781
- Kathleen Cardinale, PABelmont, MA 024781518908839
Common questions
What is Elizabeth Merriam Shor, PA-C's NPI number?
Elizabeth Merriam Shor, PA-C's National Provider Identifier (NPI) is 1801145735, issued on Sep 6, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Merriam Shor, PA-C located?
The NPPES record lists a practice address at 11 Water St, Arlington, MA, 02476. Phone: (781) 648-9700. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Merriam Shor, PA-C's license?
NPPES lists Massachusetts license number PA4533, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Elizabeth Merriam Shor, PA-C prescribe under Medicare Part D?
In 2024, Elizabeth Merriam Shor, PA-C had 189 Medicare Part D claims for 46 beneficiaries; the average among physician assistant prescribers was 830. 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.