Irving Loh, MD
NPI 1750449856 · Cardiovascular Disease Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irving Loh, MD is a Cardiovascular Disease Physician provider in Thousand Oaks, CA (NPI 1750449856).
Provider details
- NPI number
- 1750449856
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 00G268120 (CA)
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
243 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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 96 | $222 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 86 | $135 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 49 | $15 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision and Review By Physician93015 | 12 | $80 |
Typical Medicare-allowed amounts for these services range $15–$222 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 107 | 36 |
| Amlodipine Besylate | 98 | 36 |
| Rosuvastatin Calcium | 77 | 29 |
| Atorvastatin Calcium | 77 | 28 |
| Ezetimibe | 64 | 22 |
| Simvastatin | 38 | 13 |
| Irbesartan | 35 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,973 across 36 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
- 2006-12-04
- Last updated
- 2009-10-05
Frequently asked questions
- What is Irving Loh's NPI number?
- Irving Loh's National Provider Identifier (NPI) is 1750449856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irving Loh's specialty?
- Irving Loh is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Irving Loh located?
- Irving Loh's practice location on file with NPPES is 425 Haaland Dr, Thousand Oaks, CA 91361-5229.
- What is Irving Loh's phone number?
- The practice phone number listed in the NPPES registry for Irving Loh is (805) 497-2501.
- Does Irving Loh accept Medicare?
- Irving Loh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Irving Loh's NPI active?
- Yes — Irving Loh's NPI (1750449856) is active in the NPPES registry as of the last update on 2009-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.