William Kostis, PH.D., M.D.
NPI 1922203439 · Internal Medicine Physician · New Brunswick, NJ
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Kostis, PH.D., M.D. is a Internal Medicine Physician provider in New Brunswick, NJ (NPI 1922203439).
Provider details
- NPI number
- 1922203439
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- PH.D., M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 240190 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,182 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 | 3,179 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 265 | $140 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 171 | $126 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 131 | $16 |
| Programming of Dual Lead Pacemaker System93280 | 85 | $87 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 248 | 81 |
| Apixabanbrand: Eliquis | 231 | 58 |
| Atorvastatin Calcium | 112 | 35 |
| Amiodarone Hcl | 64 | 25 |
| Rivaroxabanbrand: Xarelto | 63 | 17 |
| Losartan Potassium | 58 | 17 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$183 across 10 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
Registry dates
- Enumerated
- 2007-06-15
- Last updated
- 2024-04-30
- Certified
- 2024-04-30
Frequently asked questions
- What is William Kostis's NPI number?
- William Kostis's National Provider Identifier (NPI) is 1922203439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Kostis's specialty?
- William Kostis is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Kostis located?
- William Kostis's practice location on file with NPPES is 125 Paterson St, New Brunswick, NJ 08901-1962.
- What is William Kostis's phone number?
- The practice phone number listed in the NPPES registry for William Kostis is (732) 235-6561.
- Does William Kostis accept Medicare?
- William Kostis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Kostis's NPI active?
- Yes — William Kostis's NPI (1922203439) is active in the NPPES registry as of the last update on 2024-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.