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NANCY J CAO MD PHD PLLC
NPI 1811108681
Psychiatry & Neurology - Neurology in Southfield, MI

Active since May 24, 2007
25865 W 12 MILE RD, SUITE 110, SOUTHFIELD, MI 48034(248) 223-5990(248) 223-5993 Get Directions Write a Review

NPPES record last updated: April 20, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Nancy J Cao Md Phd Pllc NPPES

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

NANCY J CAO MD PHD PLLC (NPI 1811108681) is a healthcare organization registered as a neurology in Southfield, Michigan and active in the NPI registry since May 2007. The organization lists Nancy J Cao, Owner, as its authorized official.

NPPES Registry Identity

NPI1811108681
Entity TypeOrganization
Primary Taxonomy2084N0400X
Legal Business NameNANCY J CAO MD PHD PLLC
Location Address25865 W 12 MILE RD, SUITE 110Southfield, MI 48034-1817
Mailing Address25865 W 12 Mile Rd, Suite 110Southfield, MI 48034-1817 · (248) 223-5990 · Fax (248) 223-5993
Phone(248) 223-5990
Fax(248) 223-5993
Organization SubpartNo
Authorized OfficialNancy J CaoOwner · (248) 223-5990
Enumeration DateMay 24, 2007
Last NPPES UpdateApril 20, 2008
✔ NPI 1811108681 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in MI · 4301076405
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
25865 W 12 MILE RD, Southfield, MI 48034
Open in Google Maps ↗

Other Identifiers 5

Medicare PIN0
Medicare PIN0P46270MI
Other1306360251MI · Bc/bs
Medicare UPINI39470MI
Other1306360251MI · Blue Care Network

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nancy J Cao Md Phd Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateMichiganEnrollment IDO20070802000034Non-DME Part B · Clinic/Group PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Nancy J Cao MD Phd PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Nancy Cao, MD, PHD
Neurology
NPI 1194703207
25865 W 12 MILE RD STE D110
Southfield, MI 48034
(248) 223-5990
✔ PECOS✔ Accepts Medicare96 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Nancy J Cao MD Phd PLLC's NPI number?

The NPI number for Nancy J Cao MD Phd PLLC is 1811108681. It was assigned to this organization in the NPPES registry on May 24, 2007.

Where is Nancy J Cao MD Phd PLLC located?

Nancy J Cao MD Phd PLLC is located at 25865 W 12 Mile Rd Suite 110, Southfield, MI 48034. The listed phone number is (248) 223-5990.

What is Nancy J Cao MD Phd PLLC's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Nancy J Cao MD Phd PLLC enrolled in Medicare?

Yes. Nancy J Cao MD Phd PLLC is registered in the Medicare PECOS enrollment system.

When is Nancy J Cao MD Phd PLLC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Michigan, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Nancy J Cao MD Phd PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Neurology) reassigns their Medicare billing to Nancy J Cao MD Phd PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Nancy J Cao MD Phd PLLC was last updated on April 20, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.