Constantine Manthous, M.D.
NPI 1780643759 · Critical Care Medicine (Internal Medicine) Physician · New Britain, CT
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Constantine Manthous, M.D. is a Critical Care Medicine (Internal Medicine) Physician provider in New Britain, CT (NPI 1780643759).
Provider details
- NPI number
- 1780643759
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 031195 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,647 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 374 | $95 |
| Critical Care, First 30-74 Minutes99291 | 162 | $216 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 158 | $5 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 149 | $15 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 145 | $133 |
| Manual Urinalysis Test With Examination Using Microscope, Non-Automated81000 | 123 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 404 | 126 |
| Lisinopril | 247 | 78 |
| Losartan Potassium | 200 | 61 |
| Amlodipine Besylate | 176 | 48 |
| Levothyroxine Sodium | 143 | 41 |
| Hydrochlorothiazide | 134 | 37 |
| Escitalopram Oxalate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$144 across 11 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
Registry dates
- Enumerated
- 2006-03-20
- Last updated
- 2012-07-30
Frequently asked questions
- What is Constantine Manthous's NPI number?
- Constantine Manthous's National Provider Identifier (NPI) is 1780643759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Constantine Manthous's specialty?
- Constantine Manthous is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Constantine Manthous located?
- Constantine Manthous's practice location on file with NPPES is 100 Grand St, New Britain, CT 06052-2016.
- What is Constantine Manthous's phone number?
- The practice phone number listed in the NPPES registry for Constantine Manthous is (860) 224-5011.
- Does Constantine Manthous accept Medicare?
- Constantine Manthous is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Constantine Manthous's NPI active?
- Yes — Constantine Manthous's NPI (1780643759) is active in the NPPES registry as of the last update on 2012-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.