Northlake Internal Medicine
NPI 1447469457 · Internal Medicine Physician · Lakeport, CA
Northlake Internal Medicine is a Internal Medicine Physician organization in Lakeport, CA (NPI 1447469457).
Provider details
- NPI number
- 1447469457
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- John Schweifler, Owner(707) 263-7082
- License
- ZZZ18509Z (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-22
- Last updated
- 2020-08-22
Frequently asked questions
- What is Northlake Internal Medicine's NPI number?
- Northlake Internal Medicine's National Provider Identifier (NPI) is 1447469457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Northlake Internal Medicine?
- Northlake Internal Medicine is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Northlake Internal Medicine located?
- Northlake Internal Medicine's practice location on file with NPPES is 5150 Hill Rd E, Lakeport, CA 95453-5100.
- What is Northlake Internal Medicine's phone number?
- The practice phone number listed in the NPPES registry for Northlake Internal Medicine is (707) 263-7082.
- Who is the authorized official for Northlake Internal Medicine?
- The authorized official listed on Northlake Internal Medicine's NPPES record is John Schweifler, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Northlake Internal Medicine's NPI active?
- Yes — Northlake Internal Medicine's NPI (1447469457) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.