Shaun Michael Najarian, DO
Internal Medicine Physician · Shelton, CT
Shaun Michael Najarian, DO is an internal medicine physician with a practice address in Shelton, Connecticut, and NPI 1568824589, issued on Mar 29, 2016. Check the license (Connecticut 62670, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Shaun Michael Najarian
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 62670 CT
Self-reported in NPPES; status is on the state search - Practice location
- 110 Commerce Dr, Shelton, CT 06484
- Phone
- (203) 929-7331
- Enumerated
- Mar 29, 2016
- Record last updated
- Jun 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (203) 925-0330
- Medicare enrollment
- Enrolled (PECOS I20190703000199); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2016
- 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 110 Commerce Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jilian Acevedo-Genao, LCSWClinical Social Worker1083207427
- Susan Ade, APRN, RNGerontology Clinical Nurse Specialist1447447008
- Anna Aranzullo, APRNNurse Practitioner1619623725
- Elizabeth Arbia, D.O.Family Medicine Physician1225329238
- Vanessa Barber, PA-CPhysician Assistant1144884651
- Rachel Bernstein, M.D.Obstetrics & Gynecology Physician1063947372
Verify Shaun Michael Najarian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 62670Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average internal medicine physician in 2024
11,238 Medicare Part D claims for 933 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 29 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium834 claims
- Atorvastatin Calcium824 claims
- Levothyroxine Sodium540 claims
- Amlodipine Besylate537 claims
- Losartan Potassium483 claims
- Lisinopril450 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 MIPS final score for 2023 (Medicare payment program): 97.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,398.50
173 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Griffin Faculty Physicians IncShelton, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shaun Michael Najarian among 2,623 internal medicine physician records in Connecticut
Shaun Michael Najarian, DO 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 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2004 among the 1,646 with a school on file
- Record last updated2019 · 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).
10 internal medicine physician records list a practice address in Shelton
They are 10 of the 811 NPPES records with a practice address in Shelton, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Shelton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bardia Asgari, MDShelton, CT 064841811938533
- Ana Graciela Azueta-Jimenez, MDShelton, CT 064841083293518
- Piotr Baginski, MDShelton, CT 064841164449906
- Nami Bayan, MDShelton, CT 064841760413538
- Nelson Chao, M.D.Shelton, CT 064841619974896
- John Farens, MDShelton, CT 064841427133354
- Michael Naso, M.D.Shelton, CT 064841538423488
- Lenore Snowden Opalak, M.D.Shelton, CT 064841033163605
Common questions
What is Shaun Michael Najarian, DO's NPI number?
Shaun Michael Najarian, DO's National Provider Identifier (NPI) is 1568824589, issued on Mar 29, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Shaun Michael Najarian, DO located?
The NPPES record lists a practice address at 110 Commerce Dr, Shelton, CT, 06484. Phone: (203) 929-7331. Providers update this record themselves, so call before visiting.
How can I verify Shaun Michael Najarian, DO's license?
NPPES lists Connecticut license number 62670, 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 Shaun Michael Najarian, DO prescribe under Medicare Part D?
In 2024, Shaun Michael Najarian, DO had 11,238 Medicare Part D claims for 933 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Shaun Michael Najarian, DO's MIPS final score?
The 2023 MIPS final score is 97.3 of 100. 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.