James Takayesu, MD
NPI 1528058336 · Emergency Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Takayesu, MD is a Emergency Medicine Physician provider in Boston, MA (NPI 1528058336).
Provider details
- NPI number
- 1528058336
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 216475 (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
491 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 133 | $179 |
| Critical Care, First 30-74 Minutes99291 | 113 | $220 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 86 | $124 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 56 | $180 |
| Ultrasound of Heart, Follow-Up93308 | 30 | $26 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 30 | $73 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Takayesu's NPI number?
- James Takayesu's National Provider Identifier (NPI) is 1528058336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Takayesu's specialty?
- James Takayesu is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Takayesu located?
- James Takayesu's practice location on file with NPPES is 5 Emerson Place, Mgh, Boston, MA 02114.
- What is James Takayesu's phone number?
- The practice phone number listed in the NPPES registry for James Takayesu is (617) 726-5636.
- Does James Takayesu accept Medicare?
- James Takayesu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Takayesu's NPI active?
- Yes — James Takayesu's NPI (1528058336) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.