William Geisert, MD
NPI 1336415736 · Orthopaedic Surgery Physician · Fleming Island, FL
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Geisert, MD is a Orthopaedic Surgery Physician provider in Fleming Island, FL (NPI 1336415736).
Provider details
- NPI number
- 1336415736
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301100411 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
195 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 33 | $81 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 30 | $24 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 24 | $100 |
| Replacement of Knee Joint, Both Sides of Knee27447 | 23 | $322 |
| X-Ray of Hip, 2-3 Views73502 | 22 | $33 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 21 |
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 |
|---|---|---|
| Celecoxib | 19 | 17 |
| Methylprednisolone | 19 | 19 |
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.
$149 across 3 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 (3)
- 15255 Max Legget Pkwy Ste 5300Jacksonville, FL 32218-7274Phone: (904) 634-0640Fax: (904) 634-0203
- 10475 Centurion Pkwy N Ste 220Jacksonville, FL 32256-5004Phone: (904) 634-0640Fax: (904) 634-0203
- 232 Ponte Vedra Park DrPonte Vedra Beach, FL 32082-6600Phone: (904) 634-0640Fax: (904) 634-0203
Registry dates
- Enumerated
- 2012-03-29
- Last updated
- 2025-08-05
- Certified
- 2025-08-05
Frequently asked questions
- What is William Geisert's NPI number?
- William Geisert's National Provider Identifier (NPI) is 1336415736, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Geisert's specialty?
- William Geisert is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Geisert located?
- William Geisert's practice location on file with NPPES is 4565 US Highway 17 Ste 2200, Fleming Island, FL 32003-4842.
- What is William Geisert's phone number?
- The practice phone number listed in the NPPES registry for William Geisert is (904) 634-0640.
- Does William Geisert accept Medicare?
- William Geisert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Geisert's NPI active?
- Yes — William Geisert's NPI (1336415736) is active in the NPPES registry as of the last update on 2025-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.