David Ryan Peaper, MD PHD

Primary specialty

Clinical Pathology/Laboratory Medicine PhysicianTaxonomy code 207ZP0105X

License

049563 Issued in CT

Practice address

20 York Street T209
Yale New Haven Hospital
New Haven, CT 06510-3220

Phone

(203) 688-2259

Fax

(203) 688-5599

NPI assigned

Jun 11, 2008

Last updated

Apr 9, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in CT

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 1

Specialty

Pathology

Education

Yale University School of Medicine, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Yale-New Haven Hospital Hospital, New Haven, CT, CCN 070022
• Greenwich Hospital Association - Hospital, Greenwich, CT, CCN 070018

Merit-based Incentive Payment System (MIPS)

Final score

87.36 of 100Reported as group

Quality

77.36

Promoting interoperability

100

Improvement activities

40

Cost

74.27

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dpeaper4231@direct.ynhh.org

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

• Yale University

  dba Yale Medicine

  • Anesthesiology Physician
  • New Haven, CT
  • NPI 1205822236
  Medicare reassignment Care Compare group NPD
• Yale University

  • Adult Mental Health Clinic/Center
  • Hamden, CT
  • NPI 1134391824
  NPD
• Yale University

  • Durable Medical Equipment & Medical Supplies
  • Fairfield, CT
  • NPI 1548066962
  NPD

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

• Greenwich Hospital

  • General Acute Care Hospital
  • Greenwich, CT
  • NPI 1609846088
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1336139500
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1578778726
  Care Compare affiliation

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

{
    "created_epoch": "1213142400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775692800000",
    "number": "1932369295",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 YORK STREET T209",
            "address_2": "YALE NEW HAVEN HOSPITAL",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-2259",
            "fax_number": "203-688-5599"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 YORK STREET T209",
            "address_2": "YALE NEW HAVEN HOSPITAL",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-2259",
            "fax_number": "203-688-5599"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PEAPER",
        "first_name": "DAVID",
        "middle_name": "RYAN",
        "name_prefix": "Dr.",
        "credential": "MD PHD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2008-06-11",
        "last_updated": "2026-04-09",
        "certification_date": "2026-04-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZM0300X",
            "taxonomy_group": "",
            "desc": "Pathology, Medical Microbiology",
            "state": "CT",
            "license": "049563",
            "primary": false
        },
        {
            "code": "207ZP0105X",
            "taxonomy_group": "",
            "desc": "Pathology, Clinical Pathology/Laboratory Medicine",
            "state": "CT",
            "license": "049563",
            "primary": true
        },
        {
            "code": "207ZC0006X",
            "taxonomy_group": "",
            "desc": "Pathology, Clinical Pathology",
            "state": "CT",
            "license": "049563",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christine D. Pawlik, LADC; MS; MED, LPC
• Michael John Pawlowski, D.D.S.
• Camille Alecia Payne, APRN, FNP , DNP
• Christine Payne, PH.D.
• Danielle Pazienza, PA-C
• Jackson Pearce, MD
• Keith Elliot Pearlman, MD
• Mila Pearson
• Patricia Pebley, PSY.D.
• Caroline Sara Peck, LCSW

• Clinical Pathology/Laboratory Medicine Physician in New Haven, CT
• Providers in New Haven, CT by specialty
• Clinical Pathology/Laboratory Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 9, 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.