Herlen Alencar, M.D.
NPI 1083839864 · Vascular & Interventional Radiology Physician · Concord, NH
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Herlen Alencar, M.D. is a Vascular & Interventional Radiology Physician provider in Concord, NH (NPI 1083839864).
Provider details
- NPI number
- 1083839864
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 226267 (MA)
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
19 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
2,358 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 473 | $8 |
| X-Ray of Chest, 2 Views71046 | 341 | $10 |
| Ct Scan Head Or Brain Without Contrast70450 | 128 | $38 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 104 | $84 |
| Drainage of Fluid From Abdominal Cavity Using Imaging Guidance49083 | 83 | $102 |
| X-Ray of Hip, 2-3 Views73502 | 62 | $11 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$94 across 3 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
- 2007-04-16
- Last updated
- 2017-03-06
Frequently asked questions
- What is Herlen Alencar's NPI number?
- Herlen Alencar's National Provider Identifier (NPI) is 1083839864, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Herlen Alencar's specialty?
- Herlen Alencar is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Herlen Alencar located?
- Herlen Alencar's practice location on file with NPPES is 248 Pleasant St, Concord, NH 03301-2588.
- What is Herlen Alencar's phone number?
- The practice phone number listed in the NPPES registry for Herlen Alencar is (603) 228-1521.
- Does Herlen Alencar accept Medicare?
- Herlen Alencar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Herlen Alencar's NPI active?
- Yes — Herlen Alencar's NPI (1083839864) is active in the NPPES registry as of the last update on 2017-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.