Kostantinos Papathanasiou
NPI 1639751407 · Family Medicine Physician · Springfield, MA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kostantinos Papathanasiou is a Family Medicine Physician provider in Springfield, MA (NPI 1639751407).
Provider details
- NPI number
- 1639751407
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 77572 (CT)
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 tenure28% of score
5 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
36 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 36 | $95 |
Typical Medicare-allowed amounts for these services range $95–$95 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 40 | 14 |
| Levothyroxine Sodium | 23 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 17 | — |
| Metformin Hcl | 15 | — |
| Dulaglutidebrand: Trulicity | 15 | — |
| Tamsulosin Hcl | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-22
- Last updated
- 2025-02-20
- Certified
- 2025-02-19
Frequently asked questions
- What is Kostantinos Papathanasiou's NPI number?
- Kostantinos Papathanasiou's National Provider Identifier (NPI) is 1639751407, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kostantinos Papathanasiou's specialty?
- Kostantinos Papathanasiou is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kostantinos Papathanasiou located?
- Kostantinos Papathanasiou's practice location on file with NPPES is 819 Worcester St, Springfield, MA 01151-1045.
- What is Kostantinos Papathanasiou's phone number?
- The practice phone number listed in the NPPES registry for Kostantinos Papathanasiou is (337) 991-9276.
- Does Kostantinos Papathanasiou accept Medicare?
- Kostantinos Papathanasiou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kostantinos Papathanasiou's NPI active?
- Yes — Kostantinos Papathanasiou's NPI (1639751407) is active in the NPPES registry as of the last update on 2025-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.