Catherine Yu, M.D.
NPI 1548228455 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Yu, M.D. is a Internal Medicine Physician provider in Boston, MA (NPI 1548228455).
Provider details
- NPI number
- 1548228455
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 216442 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 158 | 49 |
| Atorvastatin Calcium | 136 | 36 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 135 | 18 |
| Abacavir/Dolutegravir/Lamivudibrand: Triumeq | 127 | 14 |
| Omeprazole | 118 | 39 |
| Metformin Hcl | 114 | 27 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-02
- Last updated
- 2026-04-15
- Certified
- 2026-04-15
Frequently asked questions
- What is Catherine Yu's NPI number?
- Catherine Yu's National Provider Identifier (NPI) is 1548228455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Yu's specialty?
- Catherine Yu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Yu located?
- Catherine Yu's practice location on file with NPPES is 332 Hanover St, Boston, MA 02113-1901.
- What is Catherine Yu's phone number?
- The practice phone number listed in the NPPES registry for Catherine Yu is (617) 643-8000.
- Does Catherine Yu accept Medicare?
- Catherine Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Yu's NPI active?
- Yes — Catherine Yu's NPI (1548228455) is active in the NPPES registry as of the last update on 2026-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.