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HOWARD L. ALT, MD, SC
NPI 1821203720
Preferred Provider Organization in Chicago, IL

Active since May 14, 2007
645 N MICHIGAN AVE STE 422, CHICAGO, IL 60611(312) 642-0060(312) 642-1403 Get Directions Write a Review

NPPES record last updated: November 29, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Howard L. Alt, Md, Sc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HOWARD L. ALT, MD, SC (NPI 1821203720) is a healthcare organization registered as a preferred provider organization in Chicago, Illinois and active in the NPI registry since May 2007. The organization lists Howard Lang Alt, President, as its authorized official.

NPPES Registry Identity

NPI1821203720
Entity TypeOrganization
Primary Taxonomy305R00000X
Legal Business NameHOWARD L. ALT, MD, SC
Location Address645 N MICHIGAN AVE STE 422Chicago, IL 60611-5800
Mailing Address645 N Michigan Ave Ste 422Chicago, IL 60611-5800 · (312) 642-0060 · Fax (312) 642-1403
Phone(312) 642-0060
Fax(312) 642-1403
Organization SubpartNo
Authorized OfficialHoward Lang AltPresident · (312) 642-0060
Enumeration DateMay 14, 2007
Last NPPES UpdateNovember 29, 2008
✔ NPI 1821203720 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPreferred Provider OrganizationManaged Care Organizations
Taxonomy Code305R00000X
License✔ Licensed in IL · 36-45795
Definition
A group of physicians and/or hospitals who contract with an employer to provide services to their employees. In a PPO, the patient may got to the physician of his/her choice, even if that physician does not participate in the PPO, but the patient receives care at a lower benefit level.
645 N MICHIGAN AVE STE 422, Chicago, IL 60611
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Other Identifiers 2

Medicare UPIN476280IL
Medicare ID-Type Unspecified476280IL · Medicare Number

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Howard L. Alt, MD, Sc's NPI number?

The NPI number for Howard L. Alt, MD, Sc is 1821203720. It was assigned to this organization in the NPPES registry on May 14, 2007.

Where is Howard L. Alt, MD, Sc located?

Howard L. Alt, MD, Sc is located at 645 N Michigan Ave Ste 422, Chicago, IL 60611. The listed phone number is (312) 642-0060.

What is Howard L. Alt, MD, Sc's specialty?

The primary specialty registered for this NPI is Preferred Provider Organization with taxonomy code 305R00000X.

When was this NPI record last updated?

The NPPES record for Howard L. Alt, MD, Sc was last updated on November 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.