Leigh Perreault, MD
NPI 1669562344 · Endocrinology, Diabetes & Metabolism Physician · Boulder, CO
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leigh Perreault, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Boulder, CO (NPI 1669562344).
Provider details
- NPI number
- 1669562344
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 36528 (CO)
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
19 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
111 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 | 94 | $95 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 17 | $34 |
Typical Medicare-allowed amounts for these services range $34–$95 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Empagliflozinbrand: Jardiance | 105 | 30 |
| Tirzepatidebrand: Mounjaro | 89 | 14 |
| Semaglutidebrand: Ozempic | 67 | 19 |
| Dulaglutidebrand: Trulicity | 44 | — |
| Levothyroxine Sodium | 39 | 15 |
| Pioglitazone Hcl | 35 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$225,827 across 256 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)
- 12605 E 16th AveAurora, CO 80045-2545Phone: (720) 848-0000
Registry dates
- Enumerated
- 2006-10-13
- Last updated
- 2025-03-24
- Certified
- 2025-03-24
Frequently asked questions
- What is Leigh Perreault's NPI number?
- Leigh Perreault's National Provider Identifier (NPI) is 1669562344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leigh Perreault's specialty?
- Leigh Perreault is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Leigh Perreault located?
- Leigh Perreault's practice location on file with NPPES is 5495 Arapahoe Ave, Boulder, CO 80303-1200.
- What is Leigh Perreault's phone number?
- The practice phone number listed in the NPPES registry for Leigh Perreault is (720) 848-9200.
- Does Leigh Perreault accept Medicare?
- Leigh Perreault is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leigh Perreault's NPI active?
- Yes — Leigh Perreault's NPI (1669562344) is active in the NPPES registry as of the last update on 2025-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.