Brian Leish, M.D.
NPI 1417087073 · Family Medicine Physician · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Leish, M.D. is a Family Medicine Physician provider in Laguna Hills, CA (NPI 1417087073).
Provider details
- NPI number
- 1417087073
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G58832 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
551 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 262 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $138 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 80 | $140 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 77 | $194 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 26 | $16 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 122 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 460 | 152 |
| Amlodipine Besylate | 376 | 105 |
| Levothyroxine Sodium | 282 | 87 |
| Simvastatin | 190 | 56 |
| Lisinopril | 188 | 58 |
| Gabapentin | 186 | 56 |
| Metformin Hcl | 176 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-06
- Last updated
- 2025-11-22
- Certified
- 2025-11-22
Frequently asked questions
- What is Brian Leish's NPI number?
- Brian Leish's National Provider Identifier (NPI) is 1417087073, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Leish's specialty?
- Brian Leish is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Leish located?
- Brian Leish's practice location on file with NPPES is 24411 Health Center Dr, Laguna Hills, CA 92653-3687.
- What is Brian Leish's phone number?
- The practice phone number listed in the NPPES registry for Brian Leish is (949) 373-7799.
- Does Brian Leish accept Medicare?
- Brian Leish is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Leish's NPI active?
- Yes — Brian Leish's NPI (1417087073) is active in the NPPES registry as of the last update on 2025-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.