John Leung, M.D.
NPI 1558407643 · Anesthesiology Physician · Oro Valley, AZ
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Leung, M.D. is a Anesthesiology Physician provider in Oro Valley, AZ (NPI 1558407643).
Provider details
- NPI number
- 1558407643
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G89183 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
47 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 26 | $42 |
| Anesthesia for Extensive Surgery on Spine00670 | 21 | $419 |
Typical Medicare-allowed amounts for these services range $42–$419 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (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
Additional practice locations (1)
- 7250 Peak Dr Ste 100Las Vegas, NV 89128-9028Phone: (702) 386-4700Fax: (702) 386-4701
Registry dates
- Enumerated
- 2007-01-29
- Last updated
- 2024-11-25
- Certified
- 2024-11-25
Frequently asked questions
- What is John Leung's NPI number?
- John Leung's National Provider Identifier (NPI) is 1558407643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Leung's specialty?
- John Leung is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Leung located?
- John Leung's practice location on file with NPPES is 1551 E Tangerine Rd, Oro Valley, AZ 85755-6213.
- What is John Leung's phone number?
- The practice phone number listed in the NPPES registry for John Leung is (520) 901-3500.
- Does John Leung accept Medicare?
- John Leung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Leung's NPI active?
- Yes — John Leung's NPI (1558407643) is active in the NPPES registry as of the last update on 2024-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.