William Palfrey, MD
NPI 1558705194 · Pulmonary Disease Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Palfrey, MD is a Pulmonary Disease Physician provider in Jacksonville, FL (NPI 1558705194).
Provider details
- NPI number
- 1558705194
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME126894 (FL)
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
13 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
3,532 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) |
|---|---|---|
| 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 | 672 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 500 | $125 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 382 | $10 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 379 | $9 |
| Test to Determine Lung Volumes Using Sensors94726 | 325 | $11 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 155 | 66 |
| Prednisone | 124 | 59 |
| Montelukast Sodium | 104 | 37 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 103 | 34 |
| Azithromycin | 76 | 42 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 44 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,785 across 145 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
- 2013-04-25
- Last updated
- 2025-08-20
- Certified
- 2025-08-20
Frequently asked questions
- What is William Palfrey's NPI number?
- William Palfrey's National Provider Identifier (NPI) is 1558705194, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Palfrey's specialty?
- William Palfrey is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Palfrey located?
- William Palfrey's practice location on file with NPPES is 14540 Old Saint Augustine Rd Ste 2403, Jacksonville, FL 32258-7418.
- What is William Palfrey's phone number?
- The practice phone number listed in the NPPES registry for William Palfrey is (904) 253-6910.
- Does William Palfrey accept Medicare?
- William Palfrey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Palfrey's NPI active?
- Yes — William Palfrey's NPI (1558705194) is active in the NPPES registry as of the last update on 2025-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.