Daemeon Nicolaou, MD
NPI 1427219120 · Orthopaedic Surgery Physician · St. Louis, MO
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daemeon Nicolaou, MD is a Orthopaedic Surgery Physician provider in St. Louis, MO (NPI 1427219120).
Provider details
- NPI number
- 1427219120
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2013021987 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
16 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 16 | $148 |
Typical Medicare-allowed amounts for these services range $148–$148 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$36,574 across 49 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
Additional practice locations (1)
- 1225 South Grand BlvdDept of Orthopaedic Surgery, 1st Floor CsmSt. Louis, MO 63104Phone: (314) 257-3390Fax: (314) 257-3391
Registry dates
- Enumerated
- 2008-06-24
- Last updated
- 2023-04-12
- Certified
- 2023-04-12
Frequently asked questions
- What is Daemeon Nicolaou's NPI number?
- Daemeon Nicolaou's National Provider Identifier (NPI) is 1427219120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daemeon Nicolaou's specialty?
- Daemeon Nicolaou is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Daemeon Nicolaou located?
- Daemeon Nicolaou's practice location on file with NPPES is 3635 Vista Ave, St. Louis, MO 63110.
- What is Daemeon Nicolaou's phone number?
- The practice phone number listed in the NPPES registry for Daemeon Nicolaou is (314) 577-8850.
- Does Daemeon Nicolaou accept Medicare?
- Daemeon Nicolaou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daemeon Nicolaou's NPI active?
- Yes — Daemeon Nicolaou's NPI (1427219120) is active in the NPPES registry as of the last update on 2023-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.