Matthew Stephen, PA-C
NPI 1629591383 · Physician Assistant · Lafayette, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Stephen, PA-C is a Physician Assistant provider in Lafayette, CA (NPI 1629591383).
Provider details
- NPI number
- 1629591383
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA54572 (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
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
524 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 278 | $77 |
| Exam of Ear Using a Microscope92504 | 83 | $19 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 42 | $99 |
| Removal of Impacted Ear Wax69210 | 37 | $39 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 36 | $143 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 115 | 38 |
| Fluticasone Propionate | 79 | 37 |
| Azelastine Hcl | 57 | 26 |
| Fluocinolone Acetonide Oil | 20 | 16 |
| Ipratropium Bromide | 15 | — |
| Ciprofloxacin Hcl/Dexamethbrand: Ciprofloxacin-Dexamethasone | 14 | 14 |
| Azelastine/Fluticasonebrand: Azelastine-Fluticasone | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 across 1 record (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
Additional practice locations (1)
- 400 Parnassus AveSan Francisco, CA 94143-2202Phone: (415) 476-1000
Registry dates
- Enumerated
- 2017-07-24
- Last updated
- 2018-04-03
Frequently asked questions
- What is Matthew Stephen's NPI number?
- Matthew Stephen's National Provider Identifier (NPI) is 1629591383, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Stephen's specialty?
- Matthew Stephen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Matthew Stephen located?
- Matthew Stephen's practice location on file with NPPES is 12 Shreve Ln, Lafayette, CA 94549-4066.
- What is Matthew Stephen's phone number?
- The practice phone number listed in the NPPES registry for Matthew Stephen is (443) 220-7690.
- Does Matthew Stephen accept Medicare?
- Matthew Stephen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Stephen's NPI active?
- Yes — Matthew Stephen's NPI (1629591383) is active in the NPPES registry as of the last update on 2018-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.