Daniel Nadeau, MD
NPI 1215902226 · Endocrinology, Diabetes & Metabolism Physician · Newport Beach, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Nadeau, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Newport Beach, CA (NPI 1215902226).
Provider details
- NPI number
- 1215902226
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 11513 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
863 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 | 619 | $138 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 77 | $36 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 50 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 36 | $194 |
| Hemoglobin A1c Level83036 | 31 | $9 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 681 | 191 |
| Semaglutidebrand: Ozempic | 479 | 123 |
| Tirzepatidebrand: Mounjaro | 436 | 83 |
| Rosuvastatin Calcium | 420 | 133 |
| Empagliflozinbrand: Jardiance | 364 | 133 |
| Metformin Hcl | 344 | 102 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$121,903 across 227 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
- 2006-02-22
- Last updated
- 2018-04-20
Frequently asked questions
- What is Daniel Nadeau's NPI number?
- Daniel Nadeau's National Provider Identifier (NPI) is 1215902226, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Nadeau's specialty?
- Daniel Nadeau is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Nadeau located?
- Daniel Nadeau's practice location on file with NPPES is 510 Superior Ave Ste 150, Newport Beach, CA 92663-3663.
- What is Daniel Nadeau's phone number?
- The practice phone number listed in the NPPES registry for Daniel Nadeau is (949) 791-3001.
- Does Daniel Nadeau accept Medicare?
- Daniel Nadeau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Nadeau's NPI active?
- Yes — Daniel Nadeau's NPI (1215902226) is active in the NPPES registry as of the last update on 2018-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.