NPPES file of Aug 9, 2026

Jonathan Merritt Weber, PA

Physician Assistant · New Haven, CT

Jonathan Merritt Weber, PA is a physician assistant with a practice address in New Haven, Connecticut, and NPI 1245357391, issued on Mar 23, 2007. Check the license (Connecticut 000559, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245357391
Name
Jonathan Merritt Weber
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License numbers
000559 CT
000821 CT
Self-reported in NPPES; status is on the state search
Practice location
55 Lock Street, New Haven, CT 06520
Phone
(203) 432-0076
Enumerated
Mar 23, 2007
Record last updated
Apr 20, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(203) 432-7289
Medicare enrollment
Enrolled (PECOS I20041130000083); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 55 Lock Street

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. William Aquila, PAPhysician Assistant1164463469
  2. David Arendt, ODOptometrist1497788764
  3. Thomas Brady, PA-CPhysician Assistant1447287826
  4. Joan Cho, MDEndocrinology, Diabetes & Metabolism Physician1942242490
  5. Elizabeth Cole, CNM, RNAdvanced Practice Midwife1306873161
  6. Christine Colton, MDDiagnostic Radiology Physician1942287396

Verify Jonathan Merritt Weber in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 000559
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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55% fewer Medicare Part D claims than the average physician assistant in 2024

373 Medicare Part D claims for 81 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 65% of claims.

  1. Jonathan Weber373
  2. Specialty average830

Most prescribed

  1. Metformin Hcl Er38 claims
  2. Ozempic37 claims
  3. Humalog Kwikpen U-10026 claims
  4. Tresiba Flextouch U-10021 claims
  5. Lantus Solostar20 claims
  6. Metformin Hcl18 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 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.

  1. Qualityout of 100 · 30% of the final score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $199.12

2 payments; by number, the most common kind was food and beverage; the largest payer was Corcept Therapeutics. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jonathan Weber$199.12
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Yale UniversityNew Haven, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jonathan Merritt Weber among 2,047 physician assistant records in Connecticut

Jonathan Merritt Weber, PA is one of 2,047 physician assistant records with a practice address in Connecticut. 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 2007, is newer than 18% of them.

  • NPI issued2007 · 18% of these records are older, 77% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1998 · median 2018 among the 1,338 with a school on file
  • Record last updated2011 · 42% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

256 physician assistant records list a practice address in New Haven

They are 256 of the 9,793 NPPES records with a practice address in New Haven, and 2,047 physician assistant records in Connecticut.

The 8 physician assistant records with the nearest ZIP codes

  1. William Aquila, PANew Haven, CT 065201164463469
  2. Thomas Brady, PA-CNew Haven, CT 065201447287826
  3. John Dailinger, PANew Haven, CT 065201346282639
  4. Thomas PigorshNew Haven, CT 065201043062193
  5. Samantha StearnsNew Haven, CT 065201013763614
  6. Eden AnonyeNew Haven, CT 065191184489130
  7. Clair-Djinie Bazar, PA-CNew Haven, CT 065191447087077
  8. Nicholas Bender, PA-CNew Haven, CT 065191598470502

Common questions

What is Jonathan Merritt Weber, PA's NPI number?

Jonathan Merritt Weber, PA's National Provider Identifier (NPI) is 1245357391, issued on Mar 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Merritt Weber, PA located?

The NPPES record lists a practice address at 55 Lock Street, New Haven, CT, 06520. Phone: (203) 432-0076. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Merritt Weber, PA's license?

NPPES lists Connecticut license number 000559, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Jonathan Merritt Weber, PA prescribe under Medicare Part D?

In 2024, Jonathan Merritt Weber, PA had 373 Medicare Part D claims for 81 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Jonathan Merritt Weber, PA's MIPS final score?

The 2023 MIPS final score is 73.6 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.