What is Darcie Larimore-Arenas's NPI number?

Darcie Larimore-Arenas's National Provider Identifier (NPI) is 1083969943, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Darcie Larimore-Arenas's specialty?

Darcie Larimore-Arenas is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Darcie Larimore-Arenas located?

Darcie Larimore-Arenas's practice location on file with NPPES is 300 Professional Center Dr Ste 326, Novato, CA 94947-4334.

What is Darcie Larimore-Arenas's phone number?

The practice phone number listed in the NPPES registry for Darcie Larimore-Arenas is (415) 897-5400.

Does Darcie Larimore-Arenas accept Medicare?

Darcie Larimore-Arenas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Darcie Larimore-Arenas's NPI active?

Yes — Darcie Larimore-Arenas's NPI (1083969943) is active in the NPPES registry as of the last update on 2024-03-06.

IndividualActiveAccepts Medicare

Darcie Larimore-Arenas, PA

NPI 1083969943 · Physician Assistant · Novato, CA

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Darcie Larimore-Arenas, PA is a Physician Assistant provider in Novato, CA (NPI 1083969943).

Provider details

NPI number: 1083969943
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Physician AssistantPrimary363A00000X
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Established profile(64/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
13 yrs in NPPES registry
Profile completeness25% of score
83% of core fields populated
Practice footprint15% of score
6 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
13 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	13	$130

Typical Medicare-allowed amounts for these services range $130–$130 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$17 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

300 Professional Center Dr Ste 326

Novato, CA 94947-4334

Phone: (415) 897-5400

Fax: (415) 892-9506

Street-level locationGet directions

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Mailing address