Peter J. Ellis, MD
Internal Medicine Physician · Middlebury, CT
Peter J. Ellis, MD is an internal medicine physician with a practice address in Middlebury, Connecticut, and NPI 1912971599, issued on Feb 13, 2006. Check the license (Connecticut 034548, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Peter J. Ellis
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 034548 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1625 Straits Tpke, Middlebury, CT 06762
- Phone
- (203) 758-8107
- Enumerated
- Feb 13, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (203) 568-2924
- Medicare enrollment
- Enrolled (PECOS I20060103000614); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 1987
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 1625 Straits Tpke
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Harma, MDInternal Medicine Physician1710106547
Verify Peter J. Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 034548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average internal medicine physician in 2024
4,622 Medicare Part D claims for 413 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 118 claims were for opioids.
Most prescribed
- Atorvastatin Calcium317 claims
- Amlodipine Besylate230 claims
- Rosuvastatin Calcium218 claims
- Hydrochlorothiazide149 claims
- Lisinopril147 claims
- Metformin Hcl Er128 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter J. Ellis among 2,623 internal medicine physician records in Connecticut
Peter J. Ellis, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1987 · median 2004 among the 1,646 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 internal medicine physician records list a practice address in Middlebury
They are 9 of the 253 NPPES records with a practice address in Middlebury, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Middlebury → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Deluca, M.D.Middlebury, CT 067621629090071
- Michael Harma, MDMiddlebury, CT 067621710106547
- Leonardi Koliani, M.D.Middlebury, CT 067621619995677
- Peter Levinson, M.D.Middlebury, CT 067621881612851
- Joycelyn Maw, M.D.Middlebury, CT 067621629166574
- Jonathan Parkhurst, MDMiddlebury, CT 067621164628889
- Michael Savarese, M.D.Middlebury, CT 067621538170493
- Matthew Velsmid, MDMiddlebury, CT 067621477526176
Common questions
What is Peter J. Ellis, MD's NPI number?
Peter J. Ellis, MD's National Provider Identifier (NPI) is 1912971599, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter J. Ellis, MD located?
The NPPES record lists a practice address at 1625 Straits Tpke, Middlebury, CT, 06762. Phone: (203) 758-8107. Providers update this record themselves, so call before visiting.
How can I verify Peter J. Ellis, MD's license?
NPPES lists Connecticut license number 034548, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter J. Ellis, MD prescribe under Medicare Part D?
In 2024, Peter J. Ellis, MD had 4,622 Medicare Part D claims for 413 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Peter J. Ellis, MD'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.