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

Concepcion Tan Yen, MD

Obstetrics & Gynecology Physician in Allentown, PA · enumerated 2005.

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

National Provider Identifier

1093709719

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Registry record

Entity type Individual (Type 1)

Name Concepcion Tan Yen

Credential MD

Sex Female

Practice address Allentown, PA, 18104

Phone (610) 432-2706

Fax (610) 432-0775

Enumeration date Sep 8, 2005

Last updated in NPPES Nov 16, 2007

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

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 030194L (PA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
01051301	Other	-	CAPITAL BLUE CROSS
0040188000	Other	-	KEYSTONE EAST
0000459987	Other	-	AMERIHEALTH ADMIN
UE018138	Other	-	RAILROAD MEDICARE
YE0000459987	Other	-	PA BLUE SHIELD
0000063560	Other	-	AETNA
0001003087	Other	-	KEYSTONE MERCY
018138	Other	-	IBC PERSONAL CHOICE
0228095001	Other	-	UNITED HEALTHCARE
0000459987	Other	-	KEYSTONE
0000459987	Other	-	SENIOR BLUE
0001003087	Other	-	AMERIHEALTH MERCY
0007459987	Other	-	GATEWAY
29257	Other	-	GELSINGER HEALTH PLAN

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 Concepcion Yen?

Concepcion Yen is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Lehigh Valley Hospital Muhlenberg Adult Day Care Clinic/Center · Allentown, PA NPI 1689676249 Thomas Koch Specialist · Allentown, PA NPI 1871570127 Dina Lomas Clinical Social Worker · Allentown, PA NPI 1134183684 Concepcion Tan Yen MD Prof Corp Specialist · Allentown, PA NPI 1215057690 Nicholas Jupina Clinical Social Worker · Allentown, PA NPI 1093093502

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-16.