Leonard Adelson, MD
NPI 1235152455 · Pulmonary Disease Physician · Sherman Oaks, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Adelson, MD is a Pulmonary Disease Physician provider in Sherman Oaks, CA (NPI 1235152455).
Provider details
- NPI number
- 1235152455
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G36798 (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
5,282 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 3,596 | $81 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 906 | $122 |
| Critical Care, First 30-74 Minutes99291 | 268 | $216 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 232 | $179 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 214 | $79 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Ipratropium Bromide | 37 |
| Levalbuterol Hcl | 28 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 24 |
| Baclofen | 24 |
| Potassium Chloride | 24 |
| Sitagliptin Phosphatebrand: Januvia | 17 |
| Levetiracetam | 16 |
| Nitrofurantoin Macrocrystalbrand: Nitrofurantoin | 15 |
| Gabapentin | 13 |
| Fluticasone Propion/Salmeterol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$54 across 3 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
- 2006-07-26
- Last updated
- 2007-11-02
Frequently asked questions
- What is Leonard Adelson's NPI number?
- Leonard Adelson's National Provider Identifier (NPI) is 1235152455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Adelson's specialty?
- Leonard Adelson is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Adelson located?
- Leonard Adelson's practice location on file with NPPES is 4955 Van Nuys Blvd, Sherman Oaks, CA 91403.
- What is Leonard Adelson's phone number?
- The practice phone number listed in the NPPES registry for Leonard Adelson is (818) 325-0200.
- Does Leonard Adelson accept Medicare?
- Leonard Adelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Adelson's NPI active?
- Yes — Leonard Adelson's NPI (1235152455) is active in the NPPES registry as of the last update on 2007-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.