Rodney Erwin, MD
NPI 1407934557 · Child & Adolescent Psychiatry Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rodney Erwin, MD is a Child & Adolescent Psychiatry Physician provider in Walnut Creek, CA (NPI 1407934557).
Provider details
- NPI number
- 1407934557
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A67950 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lorazepam | 26 |
| Gabapentin | 23 |
| Duloxetine Hcl | 23 |
| Hydroxyzine Hcl | 21 |
| Fluoxetine Hcl | 20 |
| Bupropion Hclbrand: Bupropion Xl | 19 |
| Trazodone Hcl | 19 |
| Clonazepam | 18 |
| Sertraline Hcl | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-02
- Last updated
- 2021-12-13
Frequently asked questions
- What is Rodney Erwin's NPI number?
- Rodney Erwin's National Provider Identifier (NPI) is 1407934557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rodney Erwin's specialty?
- Rodney Erwin is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Rodney Erwin located?
- Rodney Erwin's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Rodney Erwin's phone number?
- The practice phone number listed in the NPPES registry for Rodney Erwin is (925) 295-4000.
- Does Rodney Erwin accept Medicare?
- Rodney Erwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rodney Erwin's NPI active?
- Yes — Rodney Erwin's NPI (1407934557) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.