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DR. WILLIAM JOHN GEIMEIER M.D.
NPI 1003848474
Allergy & Immunology - Allergy in Newark, DE

Active since July 07, 2006
179 W CHESTNUT HILL RD, SUITE 1, NEWARK, DE 19713(302) 453-1343(302) 453-1654 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. William John Geimeier M.d. NPPES

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

DR. WILLIAM JOHN GEIMEIER M.D. (NPI 1003848474) is an individual allergy provider in Newark, Delaware, licensed in Delaware (C1-0001765) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1003848474
Entity TypeIndividualMale
Primary Taxonomy207KA0200X
Provider Legal NameDR. WILLIAM JOHN GEIMEIERCredential: M.D.
Location Address179 W CHESTNUT HILL RD, SUITE 1Newark, DE 19713-2210
Mailing Address179 W Chestnut Hill Rd, Suite 1Newark, DE 19713-2210 · (302) 453-1343 · Fax (302) 453-1654
Phone(302) 453-1343
Fax(302) 453-1654
Sole ProprietorYes
Enumeration DateJuly 7, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1003848474 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians
Taxonomy Code207KA0200X
License✔ Licensed in DE · C1-0001765
Definition
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
179 W CHESTNUT HILL RD, Newark, DE 19713
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Other Identifiers 6

Other0078796000Amerihealth
Other397142Mamsi
Medicare UPINB66416DE
Other511251Aetna
Medicare ID-Type Unspecified095620A48DE
Medicaid0000048901DE

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. CLAUDIA CAROLINA CANNON NP-C
Nurse Practitioner (Family)
179 W CHESTNUT HILL RD, SUITE 6
NEWARK, DE 19713
New Castle County (302) 731-0828
CAROL KOETHER GRAY CFNP
Nurse Practitioner
179 W CHESTNUT HILL RD, SUITE 1
NEWARK, DE 19713
New Castle County (302) 453-1343
JUAN P GADEA MD PA
Pediatrics
179 W CHESTNUT HILL RD
NEWARK, DE 19713
New Castle County (302) 731-0858
ASTHMA AND ALLERGY CARE OF DELAWARE, P.A.
Allergy & Immunology
179 W CHESTNUT HILL RD
NEWARK, DE 19713
New Castle County (302) 453-1342
DR. MONICA ANNE MEHRING DDS
Dentist
179 W CHESTNUT HILL RD
NEWARK, DE 19713
New Castle County (302) 368-0054

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 William Geimeier's NPI number?

The NPI number for William Geimeier is 1003848474. It was assigned to this individual provider in the NPPES registry on July 7, 2006.

Where is William Geimeier located?

William Geimeier practices at 179 W Chestnut Hill Rd Suite 1, Newark, DE 19713. The listed phone number is (302) 453-1343.

What is William Geimeier's specialty?

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

When was this NPI record last updated?

The NPPES record for William Geimeier was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.