NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Leroy Fleischer, M.D.

Internal Medicine Physician in Havertown, PA · enumerated 2005.

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

National Provider Identifier

1902809791

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Leroy Fleischer
Credential M.D.
Sex Male
Practice address 301 W Chester Pike Ste 201, Havertown, PA, 19083
Phone (610) 853-2900
Fax (610) 853-2980
Enumeration date May 24, 2005
Last updated in NPPES Feb 28, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD038294E (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
173695 Other PA BLUE SHIELD
2038508001 Other PA KEYSTONE
010552488 Other PA UNITED HEALTHCARE
010552488 Other PA TRICARE
010552488 Other PA CIGNA
138042 Other PA AETNA
0011091310001 Medicaid PA -
080192391 Other PA TRAVELERS MEDICARE

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.

Read the full guide → Validate an NPI →

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 Leroy Fleischer?
Leroy Fleischer is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-28.