William Kormos, MD
NPI 1366403206 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Kormos, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1366403206).
Provider details
- NPI number
- 1366403206
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 80405 (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
784 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 195 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 176 | $102 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 106 | $69 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 94 | $52 |
| 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 | 53 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 84 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 428 | 113 |
| Lisinopril | 295 | 73 |
| Omeprazole | 198 | 58 |
| Simvastatin | 149 | 37 |
| Metoprolol Succinate | 147 | 40 |
| Levothyroxine Sodium | 137 | 34 |
| Amlodipine Besylate | 122 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-30
- Last updated
- 2012-11-21
Frequently asked questions
- What is William Kormos's NPI number?
- William Kormos's National Provider Identifier (NPI) is 1366403206, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Kormos's specialty?
- William Kormos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Kormos located?
- William Kormos's practice location on file with NPPES is 15 Parkman Street Wac 635, Boston, MA 02117-3117.
- What is William Kormos's phone number?
- The practice phone number listed in the NPPES registry for William Kormos is (617) 724-4600.
- Does William Kormos accept Medicare?
- William Kormos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Kormos's NPI active?
- Yes — William Kormos's NPI (1366403206) is active in the NPPES registry as of the last update on 2012-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.