Stephen Edward Mercer, MD PHD

Primary specialty

Anatomic Pathology PhysicianTaxonomy code 207ZP0101X

License

MD464757 Issued in PA

Practice address

2003 Lower State Rd BLDG 200
Doylestown, PA 18901-2622

Phone

(215) 345-6647

Fax

(215) 345-0460

NPI assigned

Jun 9, 2008

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in NJ, PA2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Pathology

Education

State University of Ny Upstate Medical University, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Pathology Associates of PrincetonGroup PAC ID 3072607720, 8 clinicians

Dermatology and Mohs Surgery Center PCGroup PAC ID 6709986920, 14 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University Medical Center of Princeton at Plainsboro Hospital, Plainsboro, NJ, CCN 310010

Merit-based Incentive Payment System (MIPS)

Final score

75 of 100Reported as group

Merit-based Incentive Payment System (MIPS)

Final score

99.15 of 100Reported as group

Promoting interoperability

99

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H9678

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Dermatology and Mohs Surgery Center PC

  • MOHS-Micrographic Surgery Physician
  • Doylestown, PA
  • NPI 1629279310
  Medicare reassignment Care Compare group NPD
• Pathology Associates of Princeton

  • Anatomic Pathology & Clinical Pathology Physician
  • Plainsboro, NJ
  • NPI 1861571135
  Medicare reassignment Care Compare group NPD
• Daniel S. Kessel MD PC

  • Dermatology Physician
  • Hamilton Square, NJ
  • NPI 1598056558
  Medicare reassignment NPD
• Anne Arundel Dermatology LLC

  • Dermatology Physician
  • Annapolis, MD
  • NPI 1063481703

  Dermatopathology

  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Princeton Healthcare System, a New Jersey Non-Profit Corporation

  • General Acute Care Hospital
  • Plainsboro, NJ
  • NPI 1689714255
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1212969600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774396800000",
    "number": "1740449297",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 23329",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100873329",
            "telephone_number": "410-873-8500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2003 LOWER STATE RD BLDG 200",
            "city": "DOYLESTOWN",
            "state": "PA",
            "postal_code": "189012622",
            "telephone_number": "215-345-6647",
            "fax_number": "215-345-0460"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1700 Whitehorse Hamilton Square Rd",
            "address_purpose": "LOCATION",
            "city": "Hamilton Square",
            "state": "NJ",
            "postal_code": "086903536",
            "country_code": "US",
            "telephone_number": "609-890-2600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MERCER",
        "first_name": "STEPHEN",
        "middle_name": "EDWARD",
        "name_prefix": "Dr.",
        "credential": "MD PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-06-09",
        "last_updated": "2026-03-25",
        "certification_date": "2026-03-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0101X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology",
            "state": "PA",
            "license": "MD464757",
            "primary": true
        },
        {
            "code": "207ZP0101X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology",
            "state": "NY",
            "license": "256277",
            "primary": false
        },
        {
            "code": "207ZD0900X",
            "taxonomy_group": "",
            "desc": "Pathology, Dermatopathology",
            "state": "PA",
            "license": "MD464757",
            "primary": false
        },
        {
            "code": "207ZP0101X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology",
            "state": "NJ",
            "license": "25MA08943200",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael A. Mendlowski, D.D.S.
• Madely Mendoza
• Meredith Menz, M.D,
• Bonnie S Mercando, CRNA
• Jeffrey Dodds Mercando, DMD
• Courtney Merchant, M.D.
• Carol A Merchiore
• Megan Mercurio, LMFT, CADC
• Kelle Renee Mericle, PT
• Dean Harry Mersky, DDS

• Anatomic Pathology Physician in Doylestown, PA
• Providers in Doylestown, PA by specialty
• Anatomic Pathology Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 25, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.