William Carlson, MD PHD
NPI 1669462180 · 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)
William Carlson, MD PHD is a Cardiovascular Disease Physician provider in Boston, MA (NPI 1669462180).
Provider details
- NPI number
- 1669462180
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- License
- 42644 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
1,942 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 828 | $8 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 368 | $195 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 262 | $17 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 243 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 97 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 99 | 32 |
| Atorvastatin Calcium | 69 | 25 |
| Apixabanbrand: Eliquis | 67 | 22 |
| Lisinopril | 59 | 18 |
| Amlodipine Besylate | 55 | 17 |
| Carvedilol | 52 | 18 |
| Spironolactone |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Carlson's NPI number?
- William Carlson's National Provider Identifier (NPI) is 1669462180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Carlson's specialty?
- William Carlson is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Carlson located?
- William Carlson's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is William Carlson's phone number?
- The practice phone number listed in the NPPES registry for William Carlson is (617) 724-6750.
- Does William Carlson accept Medicare?
- William Carlson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Carlson's NPI active?
- Yes — William Carlson's NPI (1669462180) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.