NPI Portal NPI Lookup & Verification

Dr. Stephen David Apfelroth, M.D., PH.D.

Dr. Stephen David Apfelroth is a General Practice Physician provider (General Practice) practicing in Bronx, NY, registered in the NPPES registry with NPI 1568453785 since 2005. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1568453785
Entity type Individual (Type 1)
Name Dr. Stephen David Apfelroth
Credential M.D., PH.D.
Sex Male
Practice address Bronx, NY, 10461
Phone 7189185233
Fax 7189187785
Enumeration date 2005-11-04
Last updated in NPPES 2009-11-30

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207ZB0001X Blood Banking & Transfusion Medicine Physician Secondary 189564 NY
207ZP0102X Anatomic Pathology & Clinical Pathology Physician Secondary 189564 NY
208D00000X General Practice Physician Primary 189564 NY

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

Copy-ready billing details
Provider: Stephen Apfelroth, M.D., PH.D.
NPI: 1568453785
Taxonomy: 208D00000X (General Practice Physician)
Address: Bronx, NY, 10461

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1124092010 Michael Zinaman Individual Reproductive Endocrinology Physician Bronx, NY
1609835008 Gerard Sager Individual Psychiatry Physician Bronx, NY

Verify this record

Cross-check NPI 1568453785 against the authoritative CMS record: view Dr. Stephen David Apfelroth on the official NPPES registry .

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 or validate an NPI number.

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 Stephen Apfelroth?
Stephen Apfelroth is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-11-30.