THOMAS E KLEIN MD PC
NPI 1619994274
Allergy & Immunology - Allergy in Havertown, PA

Active since July 17, 2006
400 W TOWNSHIP LINE RD, HAVERTOWN, PA 19083(610) 789-1313(610) 789-0655 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Thomas E Klein Md Pc NPPES

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

THOMAS E KLEIN MD PC (NPI 1619994274) is a healthcare organization registered as an allergy in Havertown, Pennsylvania and active in the NPI registry since July 2006. The organization lists Thomas E Klein, President, as its authorized official.

NPPES Registry Identity

NPI1619994274
Entity TypeOrganization
Primary Taxonomy207KA0200X
Legal Business NameTHOMAS E KLEIN MD PC
Location Address400 W TOWNSHIP LINE RDHavertown, PA 19083-5210
Mailing Address400 W Township Line RdHavertown, PA 19083-5210 · (610) 789-1313 · Fax (610) 789-0655
Fax(610) 789-0655
Organization SubpartNo
Authorized OfficialThomas E KleinPresident · (610) 789-1313
Enumeration DateJuly 17, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1619994274 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 PA · MD 029699E
Definition
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
400 W TOWNSHIP LINE RD, Havertown, PA 19083

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Thomas E Klein Md Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to Thomas E Klein MD PC, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 9 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Allergy/Immunology7
Nurse Practitioner2
Pediatric Medicine1

Clinicians, nearest first (10)

Nurse Practitioner
NPI 1356128862
400 W TOWNSHIP LINE RD
Havertown, PA 19083
(610) 789-1313
✔ PECOS✔ Accepts MedicareSame address
Allergy/Immunology
NPI 1801009444
400 W TOWNSHIP LINE RD
Havertown, PA 19083
(610) 789-1313
✔ PECOS✔ Accepts MedicareSame address
Allergy/Immunology
NPI 1659494888
400 W TOWNSHIP LINE RD
Havertown, PA 19083
(610) 789-1313
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1255040556
400 W TOWNSHIP LINE RD
Havertown, PA 19083
(610) 789-1313
✔ PECOS✔ Accepts MedicareSame address
Pediatric Medicine
NPI 1417162017
3550 MARKET ST FL 3 CHILDREN'S HOSPITAL OF PHILADELPHIA - ALLERGY & IMMUN
Philadelphia, PA 19104
(215) 590-2549
✔ PECOS5.6 mi
Allergy/Immunology
NPI 1104176106
1608 WALNUT ST STE 902
Philadelphia, PA 19103
(215) 315-7642
✔ PECOS✔ Accepts Medicare7.0 mi
Allergy/Immunology
NPI 1902896988
205 N BROAD ST SUITE 300
Philadelphia, PA 19107
(215) 569-1111
✔ PECOS✔ Accepts Medicare7.3 mi
Allergy/Immunology
NPI 1578862413
205 N BROAD ST SUITE 300
Philadelphia, PA 19107
(215) 569-1111
✔ PECOS✔ Accepts Medicare7.3 mi
Allergy/Immunology
NPI 1467494096
1629 S BROAD ST
Philadelphia, PA 19148
(215) 467-7318
✔ PECOS✔ Accepts Medicare7.4 mi
Allergy/Immunology
NPI 1275193823
4 TERRY DR STE 10
Newtown, PA 18940
(215) 968-6000
✔ PECOS✔ Accepts Medicare19 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 Thomas E Klein MD PC's NPI number?

The NPI number for Thomas E Klein MD PC is 1619994274. It was assigned to this organization in the NPPES registry on July 17, 2006.

Where is Thomas E Klein MD PC located?

Thomas E Klein MD PC is located at 400 W Township Line Rd, Havertown, PA 19083. The listed phone number is (610) 789-1313.

What is Thomas E Klein MD PC's specialty?

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

Is Thomas E Klein MD PC enrolled in Medicare?

Yes. Thomas E Klein MD PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Thomas E Klein MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 3 Medicare specialties reassign their Medicare billing to Thomas E Klein MD PC. 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 (7), Nurse Practitioner (2) and Pediatric Medicine (1). Of these, 4 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Thomas E Klein MD PC was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.