Catherine Hwang
NPI 1255892204 · Internal Medicine Physician · Boston, MA
Catherine Hwang is a Internal Medicine Physician provider in Boston, MA (NPI 1255892204).
Provider details
- NPI number
- 1255892204
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 290950 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Amlodipine Besylate | 22 |
| Rosuvastatin Calcium | 22 |
| Atorvastatin Calcium | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-30
- Last updated
- 2022-06-17
- Certified
- 2022-06-17
Frequently asked questions
- What is Catherine Hwang's NPI number?
- Catherine Hwang's National Provider Identifier (NPI) is 1255892204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Hwang's specialty?
- Catherine Hwang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Hwang located?
- Catherine Hwang's practice location on file with NPPES is 75 Francis Street, Asbi 2nd Floor, Boston, MA 02115.
- What is Catherine Hwang's phone number?
- The practice phone number listed in the NPPES registry for Catherine Hwang is (617) 732-6040.
- Is Catherine Hwang's NPI active?
- Yes — Catherine Hwang's NPI (1255892204) is active in the NPPES registry as of the last update on 2022-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.