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Gastroenterology

Frank J. Nemec Jr., MD

Sees patients in Las Vegas, NV · Nevada

Summary

Dr. Frank J. Nemec Jr., MD is a gastroenterologist at 6950 S Cimarron Rd, Las Vegas, NV 89113. Phone: (702) 796-0231. Accepts Medicare assignment. In 2024, Frank J. Nemec Jr. had 610 Original Medicare patients and 1,309 services. NPI 1629045786. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 6950 S Cimarron Rd, Las Vegas, NV 89113 · Directions
  • Phone: (702) 796‑0231
  • Medicare: Accepts Medicare assignment
  • Group practice: Frank J Nemec MD Ltd
  • Medical school: University Of California, Geffen School Of Medicine · graduated 1979 (47 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Frank J. Nemec Jr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Frank J. Nemec Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Frank J. Nemec Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Frank J. Nemec Jr. see?
In 2024, CMS data shows 610 Original Medicare patients and 1,309 services for Frank J. Nemec Jr.. This counts Original Medicare only and measures volume, not quality.
What is Frank J. Nemec Jr.'s NPI number?
1629045786. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Frank J. Nemec Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients610
Services billed to Medicare1,309
Different services or procedures26
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)338 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)324 services
  3. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)124 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)103 services
  5. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)86 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis49%
  • Ischemic heart disease31%
  • Diabetes27%
  • Anxiety26%

Practice locations

Addresses where Frank J. Nemec Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Frank J. Nemec Jr. as a member of this group (CMS data updated October 2, 2026).

  • Frank J Nemec MD Ltd7 clinicians in the group

Specialties

Find other Gastroenterology doctors in Nevada →

Other gastroenterologists in Las Vegas

Clinicians with the same Medicare primary specialty in Las Vegas, NV — not a recommendation.

All gastroenterologists in Las Vegas →

Other clinicians in Frank J Nemec MD Ltd

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year1979 (47 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629045786
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians