Karen St. Jean, MD
NPI 1083173124 · Endocrinology, Diabetes & Metabolism Physician · Burlington, MA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen St. Jean, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Burlington, MA (NPI 1083173124).
Provider details
- NPI number
- 1083173124
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1020264 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
246 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 111 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 84 | $98 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 51 | $132 |
Typical Medicare-allowed amounts for these services range $17–$132 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alendronate Sodium | 51 | 20 |
| Levothyroxine Sodium | 46 | 28 |
| Semaglutidebrand: Ozempic | 42 | — |
| Empagliflozinbrand: Jardiance | 37 | 14 |
| Metformin Hclbrand: Metformin Hcl Er | 33 | 11 |
| Dulaglutidebrand: Trulicity | 26 | — |
Practice location
Mailing address
Additional practice locations (1)
- 67 S Bedford StBurlington, MA 01803-5108Phone: (781) 744-2088Fax: (617) 303-8144
Registry dates
- Enumerated
- 2019-03-18
- Last updated
- 2024-07-09
- Certified
- 2024-07-09
Frequently asked questions
- What is Karen St. Jean's NPI number?
- Karen St. Jean's National Provider Identifier (NPI) is 1083173124, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen St. Jean's specialty?
- Karen St. Jean is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Karen St. Jean located?
- Karen St. Jean's practice location on file with NPPES is 41 Mall Rd, Burlington, MA 01805-5108.
- What is Karen St. Jean's phone number?
- The practice phone number listed in the NPPES registry for Karen St. Jean is (781) 744-8000.
- Does Karen St. Jean accept Medicare?
- Karen St. Jean is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen St. Jean's NPI active?
- Yes — Karen St. Jean's NPI (1083173124) is active in the NPPES registry as of the last update on 2024-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.