Jae Sim, M.D.
NPI 1063808509 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jae Sim, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1063808509).
Provider details
- NPI number
- 1063808509
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,055 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 355 | $117 |
| 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 | 311 | $17 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 122 | $3 |
| Hemoglobin A1c Level83036 | 92 | $9 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 55 | $34 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 324 | 102 |
| Semaglutidebrand: Ozempic | 313 | 72 |
| Metformin Hcl | 184 | 62 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 145 | 54 |
| Dulaglutidebrand: Trulicity | 127 | 30 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 95 | 35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-10
- Last updated
- 2021-04-23
- Certified
- 2021-04-23
Frequently asked questions
- What is Jae Sim's NPI number?
- Jae Sim's National Provider Identifier (NPI) is 1063808509, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jae Sim's specialty?
- Jae Sim is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Jae Sim located?
- Jae Sim's practice location on file with NPPES is 50 Blossom St, Boston, MA 02114-2605.
- What is Jae Sim's phone number?
- The practice phone number listed in the NPPES registry for Jae Sim is (617) 724-7777.
- Does Jae Sim accept Medicare?
- Jae Sim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jae Sim's NPI active?
- Yes — Jae Sim's NPI (1063808509) is active in the NPPES registry as of the last update on 2021-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.