Michael Kiernan, M.D.
NPI 1891985933 · Cardiovascular Disease Physician · Boston, MA
Enrolled with Medicare as Practitioner - Advanced Heart Failure and Transplant Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Kiernan, M.D. is a Cardiovascular Disease Physician provider in Boston, MA (NPI 1891985933).
Provider details
- NPI number
- 1891985933
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 232747 (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 tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,073 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 392 | $8 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 215 | $120 |
| Evaluation of Lower Heart Chamber Assist Device93750 | 126 | $41 |
| Critical Care, First 30-74 Minutes99291 | 104 | $219 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $101 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 120 | 33 |
| Sacubitril/Valsartanbrand: Entresto | 79 | 20 |
| Spironolactone | 75 | 26 |
| Warfarin Sodium | 64 | 12 |
| Losartan Potassium | 54 | 18 |
| Atorvastatin Calcium | 53 | 14 |
| Dapagliflozin Propanediol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$910 across 6 records (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
Additional practice locations (1)
- 55 Lake Ave NWorcester, MA 01655-0002Phone: (508) 856-3191Fax: (508) 856-4571
Registry dates
- Enumerated
- 2007-07-25
- Last updated
- 2022-03-07
- Certified
- 2022-03-07
Frequently asked questions
- What is Michael Kiernan's NPI number?
- Michael Kiernan's National Provider Identifier (NPI) is 1891985933, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Kiernan's specialty?
- Michael Kiernan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Kiernan located?
- Michael Kiernan's practice location on file with NPPES is 800 Washington St, Boston, MA 02111.
- What is Michael Kiernan's phone number?
- The practice phone number listed in the NPPES registry for Michael Kiernan is (617) 636-5000.
- Does Michael Kiernan accept Medicare?
- Michael Kiernan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Kiernan's NPI active?
- Yes — Michael Kiernan's NPI (1891985933) is active in the NPPES registry as of the last update on 2022-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.