Julien Dedier, MD MPH
NPI 1154386381 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julien Dedier, MD MPH is a Internal Medicine Physician provider in Boston, MA (NPI 1154386381).
Provider details
- NPI number
- 1154386381
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 155115 (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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
183 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 | 106 | $102 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 52 | $82 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 14 | $121 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 11 | $137 |
Typical Medicare-allowed amounts for these services range $82–$137 (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 · 60 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 241 | 70 |
| Amlodipine Besylate | 162 | 46 |
| Lisinopril | 106 | 32 |
| Nifedipinebrand: Nifedipine Er | 106 | 32 |
| Metformin Hcl | 103 | 30 |
| Hydrochlorothiazide | 84 | 28 |
| Gabapentin | 79 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-19
- Last updated
- 2019-05-08
Frequently asked questions
- What is Julien Dedier's NPI number?
- Julien Dedier's National Provider Identifier (NPI) is 1154386381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julien Dedier's specialty?
- Julien Dedier is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Julien Dedier located?
- Julien Dedier's practice location on file with NPPES is 801 Massachusetts Ave, Boston, MA 02118-2605.
- What is Julien Dedier's phone number?
- The practice phone number listed in the NPPES registry for Julien Dedier is (617) 414-5951.
- Does Julien Dedier accept Medicare?
- Julien Dedier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julien Dedier's NPI active?
- Yes — Julien Dedier's NPI (1154386381) is active in the NPPES registry as of the last update on 2019-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.