John Patrick Nelligan, MD
Orthopaedic Surgery Physician · Sonora, CA
John Patrick Nelligan, MD is an orthopaedic surgery physician with a practice address in Sonora, California, and NPI 1952491151, issued on Oct 16, 2006. Check the license (California G52634, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Patrick Nelligan
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- G52634 CA
MD60171766 WA
Self-reported in NPPES; status is on the state search - Practice location
- 680 Guzzi LN Ste 102, Sonora, CA 95370
- Phone
- (209) 536-5780
- Enumerated
- Oct 16, 2006
- Record last updated
- Sep 12, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (209) 588-2760
- Medicare enrollment
- Enrolled (PECOS I20120827000636); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 680 Guzzi LN Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Suess, PASurgical Physician Assistant1699110429
Verify John Patrick Nelligan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G52634Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
561 Medicare Part D claims for 188 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 327 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen153 claims
- Tramadol Hcl102 claims
- Amoxicillin69 claims
- Hydrocodone-Acetaminophen67 claims
- Enoxaparin Sodium31 claims
- Ondansetron Hcl20 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $15.02
1 payment: food and beverage; the largest payer was Bioventus LLC. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sonora Community HospitalSonora, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Patrick Nelligan among 2,276 orthopaedic surgery physician records in California
John Patrick Nelligan, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1982 · median 2003 among the 1,347 with a school on file
- Record last updated2013 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Sonora → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Keren Akakpo, PA-CSonora, CA 953701639627938
- Charles Black, D.O.Sonora, CA 953701790988087
- James Boyd, MDSonora, CA 953701407903636
- Airell Nygaard, M.D.Sonora, CA 953701417920760
- Frank De Mayo, M.D.Tracy, CA 953761861474520
- Kuldeep Sidhu, M.D.Tracy, CA 953761952383614
- Christopher Walthour, MDTracy, CA 953761811976640
- Scott Colquhoun, MDTurlock, CA 953821144200692
Common questions
What is John Patrick Nelligan, MD's NPI number?
John Patrick Nelligan, MD's National Provider Identifier (NPI) is 1952491151, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Patrick Nelligan, MD located?
The NPPES record lists a practice address at 680 Guzzi LN Ste 102, Sonora, CA, 95370. Phone: (209) 536-5780. Providers update this record themselves, so call before visiting.
How can I verify John Patrick Nelligan, MD's license?
NPPES lists California license number G52634, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Patrick Nelligan, MD prescribe under Medicare Part D?
In 2024, John Patrick Nelligan, MD had 561 Medicare Part D claims for 188 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is John Patrick Nelligan, MD's MIPS final score?
The 2023 MIPS final score is 79.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.