Carolyn Arellanes, PA
NPI 1659501880 · Physician Assistant · Smith River, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Arellanes, PA is a Physician Assistant provider in Smith River, CA (NPI 1659501880).
Provider details
- NPI number
- 1659501880
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA20429 (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 tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
94 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Test, Comprehensive Group of Blood Chemicals80053 | 26 | $10 |
| Hemoglobin A1c Level83036 | 23 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 18 | $8 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 14 | $16 |
| Thyroid Hormone, T3 Measurement, Free84481 | 13 | $17 |
Typical Medicare-allowed amounts for these services range $8–$17 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 66 | 19 |
| Lisinopril | 56 | 13 |
| Metformin Hcl | 43 | — |
| Alendronate Sodium | 42 | — |
| Losartan Potassium | 41 | 11 |
| Amlodipine Besylate | 39 | 12 |
| Metoprolol Succinate | 31 |
Practice location
Mailing address
Additional practice locations (2)
- 1600 Weeot WayArcata, CA 95521-4734Phone: (707) 825-5000Fax: (707) 825-6747
- 1675 Northcrest DrCrescent City, CA 95531-8928Phone: (707) 464-2750Fax: (707) 464-2668
Registry dates
- Enumerated
- 2009-07-22
- Last updated
- 2023-05-03
- Certified
- 2023-05-03
Frequently asked questions
- What is Carolyn Arellanes's NPI number?
- Carolyn Arellanes's National Provider Identifier (NPI) is 1659501880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Arellanes's specialty?
- Carolyn Arellanes is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Carolyn Arellanes located?
- Carolyn Arellanes's practice location on file with NPPES is 501 N Indian Rd, Smith River, CA 95567-9509.
- What is Carolyn Arellanes's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Arellanes is (707) 487-0215.
- Does Carolyn Arellanes accept Medicare?
- Carolyn Arellanes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Arellanes's NPI active?
- Yes — Carolyn Arellanes's NPI (1659501880) is active in the NPPES registry as of the last update on 2023-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.