Frederick Niegos, MD
NPI 1649277401 · Endocrinology, Diabetes & Metabolism Physician · The Villages, FL
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Niegos, MD is a Endocrinology, Diabetes & Metabolism Physician provider in The Villages, FL (NPI 1649277401).
Provider details
- NPI number
- 1649277401
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- E-10215 (AR)
Specialties & taxonomies
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
20 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
1,171 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 586 | $124 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 197 | $34 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 113 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 89 | $87 |
| Hemoglobin A1c Level83036 | 61 | $10 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 559 | 157 |
| Levothyroxine Sodium | 486 | 164 |
| Tirzepatidebrand: Mounjaro | 300 | 79 |
| Levothyroxine Sodiumbrand: Synthroid | 269 | 73 |
| Empagliflozinbrand: Jardiance | 204 | 65 |
| Metformin Hclbrand: Metformin Hcl Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$604 across 24 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)
- 1400 N US Highway 441 Ste 810The Villages, FL 32159-8987Phone: (352) 674-8700Fax: (352) 674-8714
Registry dates
- Enumerated
- 2005-07-07
- Last updated
- 2025-08-18
- Certified
- 2025-08-18
Frequently asked questions
- What is Frederick Niegos's NPI number?
- Frederick Niegos's National Provider Identifier (NPI) is 1649277401, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Niegos's specialty?
- Frederick Niegos is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Niegos located?
- Frederick Niegos's practice location on file with NPPES is 2955 Brownwood Blvd, The Villages, FL 32163-2039.
- What is Frederick Niegos's phone number?
- The practice phone number listed in the NPPES registry for Frederick Niegos is (352) 674-8700.
- Does Frederick Niegos accept Medicare?
- Frederick Niegos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Niegos's NPI active?
- Yes — Frederick Niegos's NPI (1649277401) is active in the NPPES registry as of the last update on 2025-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.