Gregory Bailey, PA
NPI 1679605505 · Endocrinology, Diabetes & Metabolism Physician · Naples, FL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Bailey, PA is a Endocrinology, Diabetes & Metabolism Physician provider in Naples, FL (NPI 1679605505).
Provider details
- NPI number
- 1679605505
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- PA
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA9101559 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
375 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 375 | $108 |
Typical Medicare-allowed amounts for these services range $108–$108 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 24 | 12 |
| Levothyroxine Sodium | 23 | 12 |
| Pantoprazole Sodium | 23 | — |
| Metoprolol Tartrate | 18 | — |
| Prednisone | 17 | — |
| Amlodipine Besylate | 17 | — |
| Hydralazine Hcl | 16 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-09
- Last updated
- 2021-03-04
- Certified
- 2021-03-04
Frequently asked questions
- What is Gregory Bailey's NPI number?
- Gregory Bailey's National Provider Identifier (NPI) is 1679605505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Bailey's specialty?
- Gregory Bailey is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Bailey located?
- Gregory Bailey's practice location on file with NPPES is 2099 Crestview Way, Naples, FL 34119-3307.
- What is Gregory Bailey's phone number?
- The practice phone number listed in the NPPES registry for Gregory Bailey is (239) 304-6960.
- Does Gregory Bailey accept Medicare?
- Gregory Bailey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Bailey's NPI active?
- Yes — Gregory Bailey's NPI (1679605505) is active in the NPPES registry as of the last update on 2021-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.