Matthew Shaffer, MSN, APRN, FNP-BC
NPI 1588434658 · Family Nurse Practitioner · Los Angeles, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Shaffer, MSN, APRN, FNP-BC is a Family Nurse Practitioner provider in Los Angeles, CA (NPI 1588434658).
Provider details
- NPI number
- 1588434658
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, APRN, FNP-BC
- Sex
- Male
- Sole proprietor
- No
- License
- 95027366 (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 tenure33% of score
2 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 504 | 152 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 395 | 72 |
| Pregabalin | 292 | 85 |
| Cyclobenzaprine Hcl | 234 | 69 |
| Baclofen | 168 | 62 |
| Diclofenac Sodium | 159 | 50 |
| Methocarbamol | 132 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$942 across 45 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
Additional practice locations (1)
- 9808 Venice Blvd Ste 706Culver City, CA 90232-6827Phone: (323) 932-9800Fax: (323) 932-9829
Registry dates
- Enumerated
- 2024-01-08
- Last updated
- 2024-01-11
- Certified
- 2024-01-11
Frequently asked questions
- What is Matthew Shaffer's NPI number?
- Matthew Shaffer's National Provider Identifier (NPI) is 1588434658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Shaffer's specialty?
- Matthew Shaffer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Matthew Shaffer located?
- Matthew Shaffer's practice location on file with NPPES is 1127 Wilshire Blvd Ste 800, Los Angeles, CA 90017-3909.
- What is Matthew Shaffer's phone number?
- The practice phone number listed in the NPPES registry for Matthew Shaffer is (213) 839-1119.
- Does Matthew Shaffer accept Medicare?
- Matthew Shaffer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Shaffer's NPI active?
- Yes — Matthew Shaffer's NPI (1588434658) is active in the NPPES registry as of the last update on 2024-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.