ALLERGY & IMMUNOLOGY ASSOCIATES OF ANN ARBOR, P.C.
NPI 1568671972
Allergy & Immunology - Allergy in Ypsilanti, MI

Active since May 22, 2007
2000 N HURON RIVER DR STE 200, YPSILANTI, MI 48197(734) 434-3007(734) 434-6317 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 17, 2018, Aug 15, 2017 (2 updates tracked since 2017).

About Allergy & Immunology Associates Of Ann Arbor, P.c. NPPES

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

ALLERGY & IMMUNOLOGY ASSOCIATES OF ANN ARBOR, P.C. (NPI 1568671972) is a healthcare organization registered as an allergy in Ypsilanti, Michigan and active in the NPI registry since May 2007. The organization maintains a secondary practice location in Ypsilanti and lists Jeffrey G. Leflein, President, as its authorized official.

NPPES Registry Identity

NPI1568671972
Entity TypeOrganization
Primary Taxonomy207KA0200X
Legal Business NameALLERGY & IMMUNOLOGY ASSOCIATES OF ANN ARBOR, P.C.
Location Address2000 N HURON RIVER DR STE 200Ypsilanti, MI 48197-1791
Mailing Address4350 Jackson Rd Ste 370Ann Arbor, MI 48103-1889 · (734) 434-3007 · Fax (734) 434-6317
Fax(734) 434-6317
Organization SubpartNo
Authorized OfficialJeffrey G. LefleinPresident · (734) 434-3007
Enumeration DateMay 22, 2007
Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration
✔ NPI 1568671972 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians
Taxonomy Code207KA0200X
License✔ Licensed in MI · 4301035591
Definition
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
Also ListedPediatrics · Pediatric Allergy/ImmunologyTaxonomy 2080P0201X · License 4301035591 (MI)
2000 N HURON RIVER DR STE 200, Ypsilanti, MI 48197

Secondary Practice Location 1

Location 15333 McAuley Drive, SUITE R-1018Ypsilanti, MI 48197 · Phone (734) 434-3007 · Fax (734) 434-6317

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

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Allergy & Immunology Associates Of Ann Arbor, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Allergy & Immunology Associates Of Ann Arbor, P.C., which bills Medicare for the services they deliver. Of these, 5 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians, nearest first (7)

Allergy/Immunology
NPI 1902854490
2000 N HURON RIVER DR STE 200
Ypsilanti, MI 48197
(734) 434-3007
✔ PECOS✔ Accepts MedicareSame address
Allergy/Immunology
NPI 1578544870
2000 N HURON RIVER DR STE 200
Ypsilanti, MI 48197
(734) 434-3007
✔ PECOS✔ Accepts MedicareSame address
Pediatric Medicine
NPI 1992786271
2000 N HURON RIVER DR STE 200
Ypsilanti, MI 48197
(734) 434-3007
✔ PECOS✔ Accepts MedicareSame address
Allergy/Immunology
NPI 1598082117
2000 N HURON RIVER DR STE 200
Ypsilanti, MI 48197
(734) 434-3007
✔ PECOS✔ Accepts MedicareSame address
Pediatric Medicine
NPI 1750362034
2000 N HURON RIVER DR STE 200
Ypsilanti, MI 48197
(734) 434-3007
✔ PECOS✔ Accepts MedicareSame address
Allergy/Immunology
NPI 1346602448
4350 JACKSON RD SUITE 260
Ann Arbor, MI 48103
(734) 434-3007
✔ PECOS✔ Accepts Medicare9.0 mi
Allergy/Immunology
NPI 1043531544
447 MUNSON AVE
Traverse City, MI 49686
(231) 929-9090
✔ PECOS✔ Accepts Medicare198 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 23D0366725

Allergy & Immunology Associates Of Ann Arbor, PC · Ypsilanti, MI
Expired · Oct 21, 2026
CLIA Number23D0366725
Laboratory TypePhysician Office
Certificate Effective DateOctober 22, 2024
Certificate Expiration DateOctober 21, 2026
Laboratory DirectorJeffrey G. Leflein
Laboratory Phone(734) 434-3007
Laboratory LocationAllergy & Immunology Associates Of Ann Arbor, PC2000 N Huron River Drive Suite 200, Ypsilanti, MI 48197
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Allergy & Immunology Associates Of Ann Arbor, P.C.'s NPI number?

The NPI number for Allergy & Immunology Associates Of Ann Arbor, P.C. is 1568671972. It was assigned to this organization in the NPPES registry on May 22, 2007.

Where is Allergy & Immunology Associates Of Ann Arbor, P.C. located?

Allergy & Immunology Associates Of Ann Arbor, P.C. is located at 2000 N Huron River Dr Ste 200, Ypsilanti, MI 48197. The listed phone number is (734) 434-3007.

What is Allergy & Immunology Associates Of Ann Arbor, P.C.'s specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Allergy & Immunology Associates Of Ann Arbor, P.C. enrolled in Medicare?

Yes. Allergy & Immunology Associates Of Ann Arbor, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Allergy & Immunology Associates Of Ann Arbor, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to Allergy & Immunology Associates Of Ann Arbor, P.C.. 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 Allergy/Immunology (5) and Pediatric Medicine (2). Of these, 5 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Allergy & Immunology Associates Of Ann Arbor, P.C. accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Allergy & Immunology Associates Of Ann Arbor, P.C. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Allergy & Immunology Associates Of Ann Arbor, P.C. was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.