Michael Yim, MD
NPI 1063091940 · Cardiovascular Disease Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Yim, MD is a Cardiovascular Disease Physician provider in Boston, MA (NPI 1063091940).
Provider details
- NPI number
- 1063091940
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35.150785 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 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
11 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 11 | $165 |
Typical Medicare-allowed amounts for these services range $165–$165 (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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 52 | 14 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 24 | — |
| Metformin Hcl | 23 | — |
| Diclofenac Sodium | 21 | — |
| Amlodipine Besylate | 19 | — |
| Dapagliflozin Propanediolbrand: Farxiga | 18 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-07
- Last updated
- 2025-06-23
- Certified
- 2025-06-23
Frequently asked questions
- What is Michael Yim's NPI number?
- Michael Yim's National Provider Identifier (NPI) is 1063091940, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Yim's specialty?
- Michael Yim is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Yim located?
- Michael Yim's practice location on file with NPPES is 800 Washington St, Boston, MA 02111-1552.
- What is Michael Yim's phone number?
- The practice phone number listed in the NPPES registry for Michael Yim is (617) 636-5000.
- Does Michael Yim accept Medicare?
- Michael Yim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Yim's NPI active?
- Yes — Michael Yim's NPI (1063091940) is active in the NPPES registry as of the last update on 2025-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.