Michael Bier
NPI 1104323757 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Bier is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1104323757).
Provider details
- NPI number
- 1104323757
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A163939 (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
8 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
377 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 | 220 | $85 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 36 | $62 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 33 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 25 | $120 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 18 | $121 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 158 | 68 |
| Losartan Potassium | 68 | 21 |
| Lisinopril | 66 | 23 |
| Amlodipine Besylate | 60 | 26 |
| Levothyroxine Sodium | 46 | 19 |
| Metformin Hcl | 46 | 20 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-10
- Last updated
- 2021-09-13
- Certified
- 2021-09-13
Frequently asked questions
- What is Michael Bier's NPI number?
- Michael Bier's National Provider Identifier (NPI) is 1104323757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Bier's specialty?
- Michael Bier is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Bier located?
- Michael Bier's practice location on file with NPPES is 11303 W Washington Blvd Ste 100, Los Angeles, CA 90066-6003.
- What is Michael Bier's phone number?
- The practice phone number listed in the NPPES registry for Michael Bier is (310) 391-7281.
- Does Michael Bier accept Medicare?
- Michael Bier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Bier's NPI active?
- Yes — Michael Bier's NPI (1104323757) is active in the NPPES registry as of the last update on 2021-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.