Mark Nishiya, MD
NPI 1760411995 · Urology Physician · Grand Junction, CO
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Nishiya, MD is a Urology Physician provider in Grand Junction, CO (NPI 1760411995).
Provider details
- NPI number
- 1760411995
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 330113 (CO)
Specialties & taxonomies
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
1,451 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) |
|---|---|---|
| Detection Test By Nucleic Acid for Organism, Amplified Probe Technique87798 | 234 | $34 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 189 | $130 |
| Automated Urinalysis Test81003 | 155 | $2 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 115 | $12 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 114 | $3 |
| Detection Test for Candida Species (yeast), Amplified Probe Technique87481 | 90 | $34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 59 | 51 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 45 | 17 |
| Estradiol | 36 | 24 |
| Tamsulosin Hcl | 30 | 18 |
| Nitrofurantoin Macrocrystalbrand: Nitrofurantoin | 23 | 17 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 22 | 21 |
| Doxazosin Mesylate | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$212 across 5 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
- 2006-07-01
- Last updated
- 2025-09-08
- Certified
- 2025-09-08
Frequently asked questions
- What is Mark Nishiya's NPI number?
- Mark Nishiya's National Provider Identifier (NPI) is 1760411995, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Nishiya's specialty?
- Mark Nishiya is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Nishiya located?
- Mark Nishiya's practice location on file with NPPES is 2373 G Rd, Grand Junction, CO 81505-9641.
- What is Mark Nishiya's phone number?
- The practice phone number listed in the NPPES registry for Mark Nishiya is (970) 243-3061.
- Does Mark Nishiya accept Medicare?
- Mark Nishiya is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Nishiya's NPI active?
- Yes — Mark Nishiya's NPI (1760411995) is active in the NPPES registry as of the last update on 2025-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.