Trina Chang, MD, MPH
NPI 1073649786 · Psychiatry Physician · Boston, MA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Trina Chang, MD, MPH is a Psychiatry Physician provider in Boston, MA (NPI 1073649786).
Provider details
- NPI number
- 1073649786
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Female
- Sole proprietor
- No
- License
- L-221214 (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
19 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
138 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 | 94 | $130 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 44 | $111 |
Typical Medicare-allowed amounts for these services range $111–$130 (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 · 26 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bupropion Hclbrand: Bupropion Xl | 54 |
| Duloxetine Hcl | 49 |
| Buspirone Hcl | 42 |
| Clonazepam | 42 |
| Brexpiprazolebrand: Rexulti | 35 |
| Quetiapine Fumarate | 34 |
| Topiramate | 33 |
| Fluoxetine Hcl | 27 |
| Prazosin Hcl | 26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Trina Chang's NPI number?
- Trina Chang's National Provider Identifier (NPI) is 1073649786, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Trina Chang's specialty?
- Trina Chang is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Trina Chang located?
- Trina Chang's practice location on file with NPPES is Massachusetts General Hospital, Boston, MA 02114.
- What is Trina Chang's phone number?
- The practice phone number listed in the NPPES registry for Trina Chang is (617) 726-2066.
- Does Trina Chang accept Medicare?
- Trina Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Trina Chang's NPI active?
- Yes — Trina Chang's NPI (1073649786) 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.