STEPHEN E. MERCER MD PHD – NPI #1740449297
Pathology

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Health Care Provider Taxonomy Code for Pathology

STEPHEN MERCER is a pathologist located in DOYLESTOWN, PA. NPPES has assigned the NPI number 1740449297 to STEPHEN MERCER on June 09, 2008. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207ZP0101X from the Health Care Provider Taxonomy code set, which is classified as Pathology, specializing in Anatomic Pathology

The NPI profile was last updated on Mar 25, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for STEPHEN MERCER below.

NPI Profile for
STEPHEN E. MERCER

NPI Number
1740449297
Enumeration Date

(more than 18 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
STEPHEN E. MERCER
Credentials
MD PHD
Primary location
2003 LOWER STATE RD BLDG 200
DOYLESTOWN, PA 18901-2622
Phone: (215) 345-6647 Fax: (215) 345-0460
1 Other location(s):
1700 Whitehorse Hamilton Square Rd
Hamilton Square, NJ 08690-3536
Phone: (609) 890-2600
Mailing address
PO BOX 23329
NEW YORK, NY 10087-3329
Phone: (410) 873-8500 Fax:
Sole Proprietor
No
Updated
Certification Date
Mar 25, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207ZP0101X
- Pathology / Anatomic Pathology (Primary)		 PA MD464757
207ZD0900X
- Pathology / Dermatopathology		 PA MD464757

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
STATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY - Graduated 2007
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
STEPHEN MERCER is affiliated with the following medical group(s):
  • HOSPITAL
    • UNIVERSITY MEDICAL CENTER OF PRINCETON AT PLAINSBORO
      ONE-FIVE PLAINSBORO ROAD
      PLAINSBORO, NJ 08536

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