Michael Holliday, M.D.
NPI 1831414234 · Otolaryngology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Holliday, M.D. is a Otolaryngology Physician provider in Los Angeles, CA (NPI 1831414234).
Provider details
- NPI number
- 1831414234
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A135471 (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
16 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
1,118 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 345 | $138 |
| Exam to Assess Movement of Vocal Cord Flaps Using an Endoscope31579 | 271 | $212 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 180 | $178 |
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 101 | $202 |
| Removal of Impacted Ear Wax69210 | 68 | $46 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 58 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 168 | 78 |
| Fluticasone Propionate | 118 | 57 |
| Famotidine | 85 | 38 |
| Azelastine Hcl | 29 | 14 |
| Gabapentin | 29 | 16 |
| Doxycycline Monohydrate | 28 | 23 |
| Methylprednisolone | 23 | 14 |
| Fluocinolone Acetonide Oil | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$256 across 6 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
- 2010-03-30
- Last updated
- 2015-08-28
Frequently asked questions
- What is Michael Holliday's NPI number?
- Michael Holliday's National Provider Identifier (NPI) is 1831414234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Holliday's specialty?
- Michael Holliday is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Holliday located?
- Michael Holliday's practice location on file with NPPES is 200 Ucla Medical Plz, Los Angeles, CA 90095-8344.
- What is Michael Holliday's phone number?
- The practice phone number listed in the NPPES registry for Michael Holliday is (310) 206-6688.
- Does Michael Holliday accept Medicare?
- Michael Holliday is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Holliday's NPI active?
- Yes — Michael Holliday's NPI (1831414234) is active in the NPPES registry as of the last update on 2015-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.