Redwood Internal Medicine
NPI 1740246669 · Internal Medicine Physician · Fortuna, CA
Redwood Internal Medicine is a Internal Medicine Physician organization in Fortuna, CA (NPI 1740246669).
Provider details
- NPI number
- 1740246669
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Theresa Sisson, Office Manager(707) 725-4477
- License
- A045693 (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
20 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.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Huppenbauer & Rangel MD
Registry dates
- Enumerated
- 2006-04-21
- Last updated
- 2008-07-02
Frequently asked questions
- What is Redwood Internal Medicine's NPI number?
- Redwood Internal Medicine's National Provider Identifier (NPI) is 1740246669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Redwood Internal Medicine?
- Redwood Internal Medicine is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Redwood Internal Medicine located?
- Redwood Internal Medicine's practice location on file with NPPES is 3304 Renner Drive, Fortuna, CA 95540.
- What is Redwood Internal Medicine's phone number?
- The practice phone number listed in the NPPES registry for Redwood Internal Medicine is (707) 725-4477.
- Who is the authorized official for Redwood Internal Medicine?
- The authorized official listed on Redwood Internal Medicine's NPPES record is Theresa Sisson, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Redwood Internal Medicine's NPI active?
- Yes — Redwood Internal Medicine's NPI (1740246669) is active in the NPPES registry as of the last update on 2008-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.