William Davanzo, M.D.
NPI 1598947970 · Nephrology Physician · St Simons Island, GA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Davanzo, M.D. is a Nephrology Physician provider in St Simons Island, GA (NPI 1598947970).
Provider details
- NPI number
- 1598947970
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 50009 (GA)
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
18 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
984 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) |
|---|---|---|
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 342 | $11 |
| Insertion of Needle And/Or Tube Into Hemodialysis Circuit and Balloon Dilation of Dialysis Segment With Review By Radiologist36902 | 239 | $223 |
| Fluoroscopic Guidance for Insertion Or Removal of Central Vein Access Device77001 | 75 | $17 |
| Balloon Dilation of Dialysis Segment With Review By Radiologist36907 | 73 | $138 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 72 | $13 |
| Removal And/Or Dissolving of Blood Clot in Hemodialysis Circuit and Balloon Dilation of Dialysis Segment With Imaging Review By Radiologist, With Balloon Tube36905 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 43 | 26 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$126 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
- 2007-11-28
- Last updated
- 2007-11-28
Frequently asked questions
- What is William Davanzo's NPI number?
- William Davanzo's National Provider Identifier (NPI) is 1598947970, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Davanzo's specialty?
- William Davanzo is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is William Davanzo located?
- William Davanzo's practice location on file with NPPES is 143 Follins Ln, St Simons Island, GA 31522-4263.
- What is William Davanzo's phone number?
- The practice phone number listed in the NPPES registry for William Davanzo is (912) 634-7714.
- Does William Davanzo accept Medicare?
- William Davanzo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Davanzo's NPI active?
- Yes — William Davanzo's NPI (1598947970) is active in the NPPES registry as of the last update on 2007-11-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.