NPI Portal NPI Lookup & Verification

Mark Freeman, MD

Mark Freeman, MD is a healthcare organization registered as Family Medicine Physician in Clearlake, CA, holding Type 2 (organization) NPI 1356426910 since 2006. The authorized official on file is Mark Freeman, Ceo.

✓ Active NPI ✓ Valid NPI checksum

NPI 1356426910
Entity type Organization (Type 2)
Legal business name Mark Freeman, MD
Practice address 15322 LAKESHORE DR, SUITE 101, Clearlake, CA, 95422
Phone 7079951362
Fax 7079957057
Enumeration date 2006-10-25
Last updated in NPPES 2009-04-17

Authorized official

Name Mark Freeman
Title Ceo
Phone 7079951362

Taxonomy & classification

Taxonomy code Specialty Primary License State
207Q00000X Family Medicine Physician Primary G47688 CA

Other identifiers

Identifier Type State Issuer
00G476880 Medicaid CA
080150278 Other MEDICARE RAILROAD #
Copy-ready billing details
Provider: Mark Freeman, MD
NPI: 1356426910
Taxonomy: 207Q00000X (Family Medicine Physician)
Address: 15322 LAKESHORE DR, SUITE 101, Clearlake, CA, 95422

Providers at this address

NPI Name Type Specialty Location
1801898929 Mark Freeman Individual Family Medicine Physician Clearlake, CA
1376510586 St. Helena Ob/Gyn Clinic Organization Specialist Clearlake, CA
1285603621 Jerry Douglas Individual Family Medicine Physician Clearlake, CA
1235328675 Michael D. Shepherd M.D. Inc. Organization Family Medicine Physician Clearlake, CA
1346565173 Adventist Health California Medical Group, Inc. Organization Family Medicine Physician Clearlake, CA
1154646982 Adventist Health California Medical Group, Inc. Organization Cardiovascular Disease Physician Clearlake, CA
1134426364 Adventist Health Physicians Network Organization Obstetrics & Gynecology Physician Clearlake, CA
1588961676 Adventist Health Physicians Network Organization Cardiovascular Disease Physician Clearlake, CA

Verify this record

Cross-check NPI 1356426910 against the authoritative CMS record: view Mark Freeman, MD on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Mark Freeman, MD?
Mark Freeman, MD is registered in NPPES as a Family Medicine Physician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-04-17.