William Gallivan, M.D.
NPI 1790702777 · Orthopaedic Surgery Physician · Santa Barbara, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Gallivan, M.D. is a Orthopaedic Surgery Physician provider in Santa Barbara, CA (NPI 1790702777).
Provider details
- NPI number
- 1790702777
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G73901 (CA)
Specialties & taxonomies
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
19 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
4,053 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 | 1,731 | $136 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 427 | $175 |
| X-Ray of Knee, 4 Or More Views73564 | 291 | $53 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 275 | $114 |
| X-Ray of Knee, 3 Views73562 | 226 | $46 |
| Computer-Assisted Surgery for Muscle and Bone Procedure20985 | 217 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 125 | 91 |
| Celecoxib | 124 | 92 |
| Mupirocin | 65 | 60 |
| Tramadol Hcl | 60 | 48 |
| Doxycycline Hyclate | 48 | 40 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 40 | 27 |
| Pregabalin | 40 | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,076 across 13 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
- 2006-07-16
- Last updated
- 2015-09-27
Frequently asked questions
- What is William Gallivan's NPI number?
- William Gallivan's National Provider Identifier (NPI) is 1790702777, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gallivan's specialty?
- William Gallivan is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Gallivan located?
- William Gallivan's practice location on file with NPPES is 320 W Junipero St, Santa Barbara, CA 93105-4305.
- What is William Gallivan's phone number?
- The practice phone number listed in the NPPES registry for William Gallivan is (805) 220-6020.
- Does William Gallivan accept Medicare?
- William Gallivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Gallivan's NPI active?
- Yes — William Gallivan's NPI (1790702777) is active in the NPPES registry as of the last update on 2015-09-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.