Kostas Papamarkakis, M.D.
NPI 1699160234 · Nephrology Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kostas Papamarkakis, M.D. is a Nephrology Physician provider in Worcester, MA (NPI 1699160234).
Provider details
- NPI number
- 1699160234
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 282248 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 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
2,096 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 867 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 419 | $121 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 279 | $175 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 143 | $354 |
| Critical Care, First 30-74 Minutes99291 | 113 | $217 |
| Hemodialysis Procedure With Physician Evaluation90935 | 76 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 90 | 42 |
| Losartan Potassium | 76 | 29 |
| Empagliflozinbrand: Jardiance | 74 | 27 |
| Furosemide | 74 | 24 |
| Torsemide | 73 | 30 |
| Sevelamer Carbonate | 65 | 22 |
| Lisinopril | 64 | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$248 across 2 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
- 2015-03-31
- Last updated
- 2026-05-27
- Certified
- 2026-05-27
Frequently asked questions
- What is Kostas Papamarkakis's NPI number?
- Kostas Papamarkakis's National Provider Identifier (NPI) is 1699160234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kostas Papamarkakis's specialty?
- Kostas Papamarkakis is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Kostas Papamarkakis located?
- Kostas Papamarkakis's practice location on file with NPPES is 123 Summer St Ste 685n, Worcester, MA 01608-1216.
- What is Kostas Papamarkakis's phone number?
- The practice phone number listed in the NPPES registry for Kostas Papamarkakis is (508) 363-6008.
- Does Kostas Papamarkakis accept Medicare?
- Kostas Papamarkakis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kostas Papamarkakis's NPI active?
- Yes — Kostas Papamarkakis's NPI (1699160234) is active in the NPPES registry as of the last update on 2026-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.