Michael Block, MD
NPI 1134203656 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Block, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1134203656).
Provider details
- NPI number
- 1134203656
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G24174 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
849 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) |
|---|---|---|
| Complex Chronic Care Management Services for Two Or More Chronic Conditions, First 60 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99487 | 326 | $93 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 247 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 85 | $138 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 75 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 45 | $140 |
| Advance Care Planning, First 30 Minutes99497 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 129 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 602 | 184 |
| Metformin Hcl | 318 | 96 |
| Omeprazole | 256 | 79 |
| Losartan Potassium | 254 | 74 |
| Levothyroxine Sodium | 236 | 63 |
| Gabapentin | 215 | 61 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-24
- Last updated
- 2025-04-25
Frequently asked questions
- What is Michael Block's NPI number?
- Michael Block's National Provider Identifier (NPI) is 1134203656, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Block's specialty?
- Michael Block is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Block located?
- Michael Block's practice location on file with NPPES is 6433 Whittier Blvd, Los Angeles, CA 90022.
- What is Michael Block's phone number?
- The practice phone number listed in the NPPES registry for Michael Block is (323) 724-6673.
- Does Michael Block accept Medicare?
- Michael Block is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Block's NPI active?
- Yes — Michael Block's NPI (1134203656) is active in the NPPES registry as of the last update on 2025-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.