Gregory Koshkarian, MD
NPI 1164425096 · Cardiovascular Disease Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Koshkarian, MD is a Cardiovascular Disease Physician provider in Tucson, AZ (NPI 1164425096).
Provider details
- NPI number
- 1164425096
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 24327 (AZ)
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
21 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
5,954 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,778 | $124 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 811 | $14 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 550 | $188 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 457 | $45 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 397 | $48 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 1,020 | 335 |
| Apixabanbrand: Eliquis | 742 | 225 |
| Amlodipine Besylate | 738 | 261 |
| Rosuvastatin Calcium | 676 | 215 |
| Atorvastatin Calcium | 565 | 189 |
| Spironolactone | 523 | 180 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,407 across 106 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
- 2005-05-24
- Last updated
- 2020-01-29
- Certified
- 2020-01-29
Frequently asked questions
- What is Gregory Koshkarian's NPI number?
- Gregory Koshkarian's National Provider Identifier (NPI) is 1164425096, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Koshkarian's specialty?
- Gregory Koshkarian is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Koshkarian located?
- Gregory Koshkarian's practice location on file with NPPES is 6080 N La Cholla Blvd # 200, Tucson, AZ 85741-3533.
- What is Gregory Koshkarian's phone number?
- The practice phone number listed in the NPPES registry for Gregory Koshkarian is (520) 797-8550.
- Does Gregory Koshkarian accept Medicare?
- Gregory Koshkarian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Koshkarian's NPI active?
- Yes — Gregory Koshkarian's NPI (1164425096) is active in the NPPES registry as of the last update on 2020-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.