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SIGMA HAGGERTY MEDICAL PA
NPI 1699136655
Internal Medicine - Geriatric Medicine in Novi, MI

Active since March 17, 2016
21333 HAGGERTY RD, SUITE 150, NOVI, MI 48375(248) 662-0250(248) 662-9845 Get Directions Write a Review

NPPES record last updated: March 19, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 19, 2021, Mar 17, 2016 (2 updates tracked since 2016).

About Sigma Haggerty Medical Pa NPPES

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

SIGMA HAGGERTY MEDICAL PA (NPI 1699136655) is a healthcare organization registered as a geriatric medicine in Novi, Michigan and active in the NPI registry since March 2016. The organization lists Thomas M Prose, President, as its authorized official.

NPPES Registry Identity

NPI1699136655
Entity TypeOrganization
Primary Taxonomy207RG0300X
Legal Business NameSIGMA HAGGERTY MEDICAL PA
Location Address21333 HAGGERTY RD, SUITE 150Novi, MI 48375-5510
Mailing Address21333 Haggerty Rd, Suite 150Novi, MI 48375-5510 · (248) 662-0250 · Fax (248) 662-9845
Phone(248) 662-0250
Fax(248) 662-9845
Organization SubpartNo
Authorized OfficialThomas M ProsePresident · (248) 662-0250
Enumeration DateMarch 17, 2016
Last NPPES UpdateMarch 19, 20212 updates tracked since enumeration
NPPES CertifiedMarch 19, 2021
✔ NPI 1699136655 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedNurse PractitionerTaxonomy 363L00000X
21333 HAGGERTY RD, Novi, MI 48375
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sigma Haggerty Medical Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Sigma Haggerty Medical PA, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (5)

David Chiou, M.D.
Internal Medicine
NPI 1093779084
157 N SEYMOUR AVE
Mundelein, IL 60060
(847) 566-0300
✔ PECOS✔ Accepts Medicare234 mi
Kelly Drudi, APN
Nurse Practitioner
NPI 1942578794
1560 GALWAY DR
Aurora, IL 60505
(630) 569-4236
✔ PECOS✔ Accepts Medicare254 mi
Brittany Moist, NP
Nurse Practitioner
NPI 1487199311
702 W CHESTNUT ST
Bloomington, IL 61701
(309) 557-1400
✔ PECOS319 mi
Stephen Harrison, M.D.
Family Practice
NPI 1649221508
1705 16TH AVE
Fulton, IL 61252
(815) 589-2121
✔ PECOS✔ Accepts Medicare347 mi
Marta Cortes, FNP-C
Nurse Practitioner
NPI 1548653165
4620 BEECHNUT ST APT 211
Houston, TX 77096
(281) 384-3416
✔ PECOS1,105 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 Sigma Haggerty Medical PA's NPI number?

The NPI number for Sigma Haggerty Medical PA is 1699136655. It was assigned to this organization in the NPPES registry on March 17, 2016.

Where is Sigma Haggerty Medical PA located?

Sigma Haggerty Medical PA is located at 21333 Haggerty Rd Suite 150, Novi, MI 48375. The listed phone number is (248) 662-0250.

What is Sigma Haggerty Medical PA's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Sigma Haggerty Medical PA enrolled in Medicare?

Yes. Sigma Haggerty Medical PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sigma Haggerty Medical PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 3 Medicare specialties reassign their Medicare billing to Sigma Haggerty Medical PA. 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. The largest specialties are Nurse Practitioner (3), Family Practice (1) and Internal Medicine (1). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Sigma Haggerty Medical PA was last updated on March 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.