John Nelligan, MD
NPI 1952491151 · Orthopaedic Surgery Physician · Sonora, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Nelligan, MD is a Orthopaedic Surgery Physician provider in Sonora, CA (NPI 1952491151).
Provider details
- NPI number
- 1952491151
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD60171766 (WA)
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
1,091 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 | 308 | $65 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 149 | $49 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 122 | $80 |
| X-Ray of Hip, 2-3 Views73502 | 117 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 82 | $95 |
| X-Ray of Knee, 3 Views73562 | 60 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 153 | 82 |
| Tramadol Hcl | 102 | 64 |
| Amoxicillin | 69 | 41 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 67 | 50 |
| Enoxaparin Sodium | 31 | 28 |
| Ondansetron Hcl | 20 | 17 |
| Mupirocin | 18 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (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
- 2006-10-16
- Last updated
- 2013-09-12
Frequently asked questions
- What is John Nelligan's NPI number?
- John Nelligan's National Provider Identifier (NPI) is 1952491151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nelligan's specialty?
- John Nelligan is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Nelligan located?
- John Nelligan's practice location on file with NPPES is 680 Guzzi Ln Ste 102, Sonora, CA 95370-5288.
- What is John Nelligan's phone number?
- The practice phone number listed in the NPPES registry for John Nelligan is (209) 536-5780.
- Does John Nelligan accept Medicare?
- John Nelligan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Nelligan's NPI active?
- Yes — John Nelligan's NPI (1952491151) is active in the NPPES registry as of the last update on 2013-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.