Grace Hsieh, M.D.
NPI 1639518376 · Cardiovascular Disease Physician · Boston, MA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Hsieh, M.D. is a Cardiovascular Disease Physician provider in Boston, MA (NPI 1639518376).
Provider details
- NPI number
- 1639518376
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 267012 (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 tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
404 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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 197 | $71 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 95 | $124 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 | $181 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 20 | $152 |
| Ultrasound of Heart, Follow-Up93308 | 18 | $26 |
| Hospital Discharge Day Management, More Than 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 58 | 14 |
| Metoprolol Succinate | 40 | 11 |
| Carvedilol | 26 | — |
| Empagliflozinbrand: Jardiance | 18 | — |
| Sacubitril/Valsartanbrand: Entresto | 16 | — |
| Spironolactone | 16 | — |
| Ezetimibe | 15 |
Practice location
Mailing address
Additional practice locations (1)
- 840 Harrison AveBoston, MA 02118-2905Phone: (617) 638-6610Fax: (617) 638-6616
Registry dates
- Enumerated
- 2013-06-16
- Last updated
- 2026-05-18
- Certified
- 2026-05-18
Frequently asked questions
- What is Grace Hsieh's NPI number?
- Grace Hsieh's National Provider Identifier (NPI) is 1639518376, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Hsieh's specialty?
- Grace Hsieh is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Hsieh located?
- Grace Hsieh's practice location on file with NPPES is 732 Harrison Avenue, Fl 3, Boston, MA 02118-2309.
- What is Grace Hsieh's phone number?
- The practice phone number listed in the NPPES registry for Grace Hsieh is (617) 638-7490.
- Does Grace Hsieh accept Medicare?
- Grace Hsieh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Hsieh's NPI active?
- Yes — Grace Hsieh's NPI (1639518376) is active in the NPPES registry as of the last update on 2026-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.