James M. Nachiondo, MD
Gastroenterology Physician · Reno, NV
James M. Nachiondo, MD is a gastroenterology physician with a practice address in Reno, Nevada, and NPI 1407832231, issued on Dec 22, 2005. Check the license (Nevada 11261, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James M. Nachiondo
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 11261 NV
Self-reported in NPPES; status is on the state search - Practice location
- 10619 Professional Cir, Reno, NV 89521
- Phone
- (775) 852-4848
- Enumerated
- Dec 22, 2005
- Record last updated
- Dec 22, 2022
- Fax
- (775) 850-5763
- Medicaid ID
- 100507554 NV
- Medicare enrollment
- Enrolled (PECOS I20230209001227); accepts Medicare assignment
- Medical or professional school
- University Of Nevada School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 119 in Nevada → Look up another NPI →
Also registered at 10619 Professional Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael BellucciPhysician Assistant1487438693
- Tom Fang, M.D.Gastroenterology Physician1053584631
- John Gray, M.D.. CEOGastroenterology Physician1982680765
- Timothy Halterman, MDGastroenterology Physician1992921316
- Mary Helmreich, APRNNurse Practitioner1225604408
- Darren Hill, FNP-BCFamily Nurse Practitioner1295282093
Verify James M. Nachiondo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 11261Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average gastroenterology physician in 2024
676 Medicare Part D claims for 275 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf130 claims
- Pantoprazole Sodium107 claims
- Omeprazole71 claims
- Famotidine68 claims
- Colestipol Hcl30 claims
- Diphenoxylate-Atropine17 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): 29.4 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: $238.56
11 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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 3 group practices
- Carson Tahoe Physician ClinicsCarson City, NV
- Cth Physicians ClinicCarson City, NV
- Tahoe Forest Hospital DistrictTruckee, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James M. Nachiondo among 119 gastroenterology physician records in Nevada
James M. Nachiondo, MD is one of 119 gastroenterology physician records with a practice address in Nevada. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1998 · median 1998 among the 92 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Nevada
There are 119 gastroenterology physician records in Nevada.
All 119 in Nevada → Every provider in Reno → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Tom Fang, M.D.Reno, NV 895211053584631
- John Gray, M.D.. CEOReno, NV 895211982680765
- Timothy Halterman, MDReno, NV 895211992921316
- Loth Lieberstein, M.D.Reno, NV 895211922062215
- Jonathan Pezanoski, MDReno, NV 895211053355545
- Atigadda Reddy, MDReno, NV 895211609853480
- Erik Dejonghe, MDReno, NV 895111295711414
- Michael Gilles, MDReno, NV 895111164579025
Common questions
What is James M. Nachiondo, MD's NPI number?
James M. Nachiondo, MD's National Provider Identifier (NPI) is 1407832231, issued on Dec 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James M. Nachiondo, MD located?
The NPPES record lists a practice address at 10619 Professional Cir, Reno, NV, 89521. Phone: (775) 852-4848. Providers update this record themselves, so call before visiting.
How can I verify James M. Nachiondo, MD's license?
NPPES lists Nevada license number 11261, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James M. Nachiondo, MD prescribe under Medicare Part D?
In 2024, James M. Nachiondo, MD had 676 Medicare Part D claims for 275 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is James M. Nachiondo, MD's MIPS final score?
The 2023 MIPS final score is 29.4 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.