Spencer Emerson Deros, PA-C

Primary specialty

Surgical Physician AssistantTaxonomy code 363AS0400X

Practice address

595 Straits Tpke
Watertown, CT 06795-3393

Phone

(844) 482-7285

Fax

(203) 502-2615

NPI assigned

Oct 6, 2022

Last updated

Jun 16, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nuvance Health Medical Practice CT IncGroup PAC ID 4789597691, 742 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Norwalk Hospital Hospital, Norwalk, CT, CCN 070034

Merit-based Incentive Payment System (MIPS)

Final score

97.63 of 100Reported as group

Promoting interoperability

88

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: sderos@vascularexperts.directbygreenway.com
• Direct secure messaging: spencer.deros.1@32135.direct.athenahealth.com

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.

• Nuvance Health Medical Practice CT, Inc.

  • Internal Medicine Physician
  • Danbury, CT
  • NPI 1407898117
  Medicare reassignment Care Compare group NPD

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

• Norwalk Hospital Association

  • General Acute Care Hospital
  • Norwalk, CT
  • NPI 1346441953
  Care Compare affiliation
• Norwalk Hospital Association

  • General Acute Care Hospital
  • Norwalk, CT
  • NPI 1427041581
  Care Compare affiliation
• Norwalk Hospital Association

  • Land Ambulance
  • Norwalk, CT
  • NPI 1477546521

  Hospital

  Care Compare affiliation
• Norwalk Hospital Association

  • General Acute Care Hospital
  • Norwalk, CT
  • NPI 1649263880
  Care Compare affiliation

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

{
    "created_epoch": "1665014400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750032000000",
    "number": "1841915394",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22 LISBON ST",
            "city": "WATERTOWN",
            "state": "CT",
            "postal_code": "067952669",
            "telephone_number": "860-274-6653"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "595 STRAITS TPKE",
            "city": "WATERTOWN",
            "state": "CT",
            "postal_code": "067953393",
            "telephone_number": "844-482-7285",
            "fax_number": "203-502-2615"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "560 Woodbury Rd",
            "address_purpose": "LOCATION",
            "city": "Watertown",
            "state": "CT",
            "postal_code": "067951725",
            "country_code": "US",
            "telephone_number": "860-274-6748",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DEROS",
        "first_name": "SPENCER",
        "middle_name": "EMERSON",
        "name_prefix": "Mr.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-10-06",
        "last_updated": "2025-06-16",
        "certification_date": "2025-06-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CT",
            "license": "5918",
            "primary": false
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "5918",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Julia D'Amelio, RDN, LDN
• Madeline Daigneault
• Ronald Joseph Dandrea, MD
• Elisha Danzig, DO
• Michael Christopher De Luca, OTRL
• Kathleen Louise Deschenes, LMFT
• Desiree Scime LMFT Ladc
• Lisa M Dinunzio, RPH
• Jonathan Dion
• Diya Corporation (Health Complex Pharmacy)

• Surgical Physician Assistant in Watertown, CT
• Providers in Watertown, CT by specialty
• Surgical Physician Assistant in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 16, 2025; 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.