William Martinez, PA-C
NPI 1124161120 · Medical Physician Assistant · Los Angeles, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Martinez, PA-C is a Medical Physician Assistant provider in Los Angeles, CA (NPI 1124161120).
Provider details
- NPI number
- 1124161120
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA15129 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
1,492 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) |
|---|---|---|
| Blood Glucose (sugar) Level82947 | 419 | $4 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 418 | $84 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 158 | $13 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 116 | $53 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 68 | $9 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 55 | $83 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 166 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 873 | 324 |
| Gabapentin | 548 | 226 |
| Furosemide | 458 | 179 |
| Losartan Potassium | 427 | 159 |
| Amlodipine Besylate | 382 | 159 |
| Carvedilol | 359 | 133 |
| Quetiapine Fumarate | 355 | 130 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$246 across 12 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
- 2007-02-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Martinez's NPI number?
- William Martinez's National Provider Identifier (NPI) is 1124161120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Martinez's specialty?
- William Martinez is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Martinez located?
- William Martinez's practice location on file with NPPES is 2033 W 7th St, Los Angeles, CA 90057-4073.
- What is William Martinez's phone number?
- The practice phone number listed in the NPPES registry for William Martinez is (213) 484-2288.
- Does William Martinez accept Medicare?
- William Martinez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Martinez's NPI active?
- Yes — William Martinez's NPI (1124161120) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.