Stephen Mercer, MD PHD
NPI 1740449297 · Anatomic Pathology Physician · Doylestown, PA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Mercer, MD PHD is a Anatomic Pathology Physician provider in Doylestown, PA (NPI 1740449297).
Provider details
- NPI number
- 1740449297
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- No
- License
- MD464757 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
12,883 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 10,068 | $39 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 1,777 | $37 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 356 | $29 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 299 | $12 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 288 | $28 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 68 | $39 |
Practice location
Mailing address
Additional practice locations (1)
- 1700 Whitehorse Hamilton Square RdHamilton Square, NJ 08690-3536Phone: (609) 890-2600
Registry dates
- Enumerated
- 2008-06-09
- Last updated
- 2026-03-25
- Certified
- 2026-03-25
Frequently asked questions
- What is Stephen Mercer's NPI number?
- Stephen Mercer's National Provider Identifier (NPI) is 1740449297, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Mercer's specialty?
- Stephen Mercer is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Mercer located?
- Stephen Mercer's practice location on file with NPPES is 2003 Lower State Rd Bldg 200, Doylestown, PA 18901-2622.
- What is Stephen Mercer's phone number?
- The practice phone number listed in the NPPES registry for Stephen Mercer is (215) 345-6647.
- Does Stephen Mercer accept Medicare?
- Stephen Mercer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Mercer's NPI active?
- Yes — Stephen Mercer's NPI (1740449297) is active in the NPPES registry as of the last update on 2026-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.