Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Harold W Seifer MD & Michael Freund MD Inc

Internal Medicine Physician in Lakewood, CA · enumerated 2006 · authorized official Michael Freund, Vice President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1437247467

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Registry record

Entity type Organization (Type 2)

Legal business name Harold W Seifer MD & Michael Freund MD Inc

Practice address 3650 E South Street, Ste 110, Lakewood, CA, 92886

Phone (562) 531-6140

Fax (562) 531-7404

Enumeration date Oct 11, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Michael Freund

Title Vice President

Phone (562) 531-6140

Other identifiers

Identifier	Type	State	Issuer
YY4489874	Medicaid	CA	-
YYY489874	Medicaid	CA	-

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is Harold W Seifer MD & Michael Freund MD Inc located?

The practice location on file with NPPES is in Lakewood, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.