Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Karl John Sheaffer, PT DPT

Physical Therapist in Allentown, PA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1023016995

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Registry record

Entity type Individual (Type 1)

Name Dr. Karl John Sheaffer

Credential PT DPT

Sex Male

Practice address Allentown, PA, 18106

Phone (610) 336-4300

Fax (610) 336-0971

Enumeration date Jul 13, 2005

Last updated in NPPES Jun 5, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License DAPT000794 (PA) Primary

2251X0800X Orthopedic Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT006278L (PA) Secondary

Other identifiers

Identifier	Type	State	Issuer
0255701	Other	PA	ORTHONET
0399127000	Other	PA	KEYSTONEHEALTH PLAN EAST
2251096	Other	PA	MULTIPLAN
900065	Other	PA	FIRST HEALTH
000577435	Other	PA	PERSONAL CHOICE
0577435	Other	PA	KEYSTONEHEALTHPLANCENTRAL
577435	Other	PA	AMERIHEALTH ADMINISTRATORS
00577435	Other	PA	HIGHMARK BLUE SHIELD
245899	Other	PA	HEALTH ASSURANCE/AMERICA
0399127000	Other	PA	AMERIHEALTH
0399127000	Other	PA	INDEPENDENCE BLUE CROSS
50033389	Other	PA	CAPITAL BLUE CROSS
96513	Other	PA	GEISINGER HEALTH PLAN
0577435	Other	PA	SENIOR BLUE
1784211	Other	PA	CIGNA
702570	Other	PA	OPTUM
200683740	Other	PA	UNITED HEALTHCARE
EPDB5894110	Other	PA	AETNA

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Karl Sheaffer?

Karl Sheaffer is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-05.