William Fielding, P.A.
NPI 1154345015 · Physician Assistant · Clifton Park, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Fielding, P.A. is a Physician Assistant provider in Clifton Park, NY (NPI 1154345015).
Provider details
- NPI number
- 1154345015
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- Sole proprietor
- No
- License
- 006612 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
469 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 | 200 | $66 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 136 | $57 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 73 | $64 |
| Advance Care Planning, First 30 Minutes99497 | 17 | $38 |
| 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 | 16 | $12 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 111 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 161 | 76 |
| Omeprazole | 154 | 70 |
| Levothyroxine Sodium | 133 | 54 |
| Lisinopril | 115 | 54 |
| Amlodipine Besylate | 106 | 46 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 94 | 43 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,148 across 61 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 (2)
- 3890 Tampa Rd Ste 102Palm Harbor, FL 34684-3677Phone: (727) 781-3150Fax: (813) 635-2636
- 1111 Hudson AveStillwater, NY 12170-3439Phone: (518) 664-3242
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2022-11-16
- Certified
- 2022-11-16
Frequently asked questions
- What is William Fielding's NPI number?
- William Fielding's National Provider Identifier (NPI) is 1154345015, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Fielding's specialty?
- William Fielding is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Fielding located?
- William Fielding's practice location on file with NPPES is 1 Tallow Wood Dr, Clifton Park, NY 12065-2807.
- What is William Fielding's phone number?
- The practice phone number listed in the NPPES registry for William Fielding is (518) 373-4500.
- Does William Fielding accept Medicare?
- William Fielding is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Fielding's NPI active?
- Yes — William Fielding's NPI (1154345015) is active in the NPPES registry as of the last update on 2022-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.