John Efstathiades, DO
NPI 1154908879 · Family Medicine Physician · Spartanburg, SC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Efstathiades, DO is a Family Medicine Physician provider in Spartanburg, SC (NPI 1154908879).
Provider details
- NPI number
- 1154908879
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- LL83519 (SC)
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
5 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
237 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 45 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 40 | $120 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 37 | $9 |
| 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 | 32 | $16 |
| Hemoglobin A1c Level83036 | 21 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count |
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 |
|---|---|---|
| Atorvastatin Calcium | 98 | 49 |
| Gabapentin | 53 | 16 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 41 | 17 |
| Amlodipine Besylate | 36 | 18 |
| Lisinopril | 34 | 19 |
| Montelukast Sodium | 25 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$137 across 7 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
- 2021-03-27
- Last updated
- 2021-06-21
- Certified
- 2021-06-21
Frequently asked questions
- What is John Efstathiades's NPI number?
- John Efstathiades's National Provider Identifier (NPI) is 1154908879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Efstathiades's specialty?
- John Efstathiades is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Efstathiades located?
- John Efstathiades's practice location on file with NPPES is 853 N Church St Ste 510, Spartanburg, SC 29303-3077.
- What is John Efstathiades's phone number?
- The practice phone number listed in the NPPES registry for John Efstathiades is (864) 560-6193.
- Does John Efstathiades accept Medicare?
- John Efstathiades is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Efstathiades's NPI active?
- Yes — John Efstathiades's NPI (1154908879) is active in the NPPES registry as of the last update on 2021-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.