Marcia Nelson, MD
NPI 1609861905 · Family Medicine Physician · Chico, CA
Marcia Nelson, MD is a Family Medicine Physician provider in Chico, CA (NPI 1609861905).
Provider details
- NPI number
- 1609861905
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- G61621 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 108 | 50 |
| Levothyroxine Sodium | 107 | 57 |
| Losartan Potassium | 70 | 31 |
| Atorvastatin Calcium | 69 | 34 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 60 | 23 |
| Metformin Hcl | 57 | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 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
Registry dates
- Enumerated
- 2005-09-13
- Last updated
- 2010-02-03
Frequently asked questions
- What is Marcia Nelson's NPI number?
- Marcia Nelson's National Provider Identifier (NPI) is 1609861905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcia Nelson's specialty?
- Marcia Nelson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marcia Nelson located?
- Marcia Nelson's practice location on file with NPPES is 114 Mission Ranch Blvd, Chico, CA 95926-2186.
- What is Marcia Nelson's phone number?
- The practice phone number listed in the NPPES registry for Marcia Nelson is (530) 894-0500.
- Is Marcia Nelson's NPI active?
- Yes — Marcia Nelson's NPI (1609861905) is active in the NPPES registry as of the last update on 2010-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.