Shaun Najarian, DO
NPI 1568824589 · Internal Medicine Physician · Shelton, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shaun Najarian, DO is a Internal Medicine Physician provider in Shelton, CT (NPI 1568824589).
Provider details
- NPI number
- 1568824589
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 62670 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,701 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 440 | $136 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 428 | $9 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 236 | $68 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 115 | $21 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 94 | $142 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 132 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 834 | 256 |
| Atorvastatin Calcium | 824 | 215 |
| Levothyroxine Sodium | 540 | 135 |
| Amlodipine Besylate | 537 | 160 |
| Losartan Potassium | 483 | 140 |
| Lisinopril | 450 | 130 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,399 across 173 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 130 Division StDerby, CT 06418-1326Phone: (203) 732-1330Fax: (203) 732-1332
Registry dates
- Enumerated
- 2016-03-29
- Last updated
- 2019-06-24
Frequently asked questions
- What is Shaun Najarian's NPI number?
- Shaun Najarian's National Provider Identifier (NPI) is 1568824589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shaun Najarian's specialty?
- Shaun Najarian is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Shaun Najarian located?
- Shaun Najarian's practice location on file with NPPES is 110 Commerce Dr, Shelton, CT 06484-6244.
- What is Shaun Najarian's phone number?
- The practice phone number listed in the NPPES registry for Shaun Najarian is (203) 929-7331.
- Does Shaun Najarian accept Medicare?
- Shaun Najarian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shaun Najarian's NPI active?
- Yes — Shaun Najarian's NPI (1568824589) is active in the NPPES registry as of the last update on 2019-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.