NPIMap

Individual provider Active NPI

William E Shay, MD

  • Internal Medicine Physician
  • Provincetown, MA
National Provider Identifier
1033198627
Registry record updated Jul 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
202858 Issued in MA
Practice address
49 Harry Kemp Way
Provincetown, MA 02657-1618
Phone
(508) 487-9395
Fax
(508) 487-6298
NPI assigned
Jan 11, 2006
Last updated
Jul 8, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 8, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 151526 NY
Internal Medicine Physician 207R00000X 202858 MA Primary

Addresses

Primary practice location

49 Harry Kemp Way
Provincetown, MA 02657-1618

Mailing address

PO Box 2796
Orleans, MA 02653-6796
Phone (508) 487-9395

Other identifiers 2

IdentifierTypeStateIssuer
110091651AMedicaidMA
00980667MedicaidNY

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20101102000061 MA Practitioner - Internal Medicine 9436252723 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Albany Medical College of Union University, 1981
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Outer Cape Health Services IncGroup PAC ID 4385554971, 51 clinicians

Practice addresses (Care Compare)

3130 State Hwy Rte 6
Wellfleet, MA 02667-7402
Phone (508) 349-3131

49 Harry Kemp Way
Provincetown, MA 02657-1618
Phone (508) 487-9395

710 Route 28
Harwich Port, MA 02646-1931
Phone (508) 432-1400

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Outer Cape Health Services, Inc. CurrentSince Sep 1, 2010 Accepting new patients
Outer Cape Health Services CurrentSince Sep 1, 2010 Accepting new patients
Outer Cape Health Services, Inc. Current Accepting new patients
Chelsea Collaborative Medical Care, PLLC Internal Medicine PastSince Mar 8, 2014 Accepting new patients

Locations

49 Harry Kemp Way
Provincetown, MA 02657
Phone (508) 487-9395

3130 State Hwy Rte 6
Wellfleet, MA 02667
Phone (508) 349-3131

Interoperability endpoints

  • Direct secure messaging: wshay367875@direct.ochin.org

Organizations & group practices 4

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.

Hospital & facility affiliations 8

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

NPI Registry JSON

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

{
    "created_epoch": "1136937600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783468800000",
    "number": "1033198627",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 2796",
            "city": "ORLEANS",
            "state": "MA",
            "postal_code": "026536796",
            "telephone_number": "508-487-9395",
            "fax_number": "508-487-6298"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "49 HARRY KEMP WAY",
            "city": "PROVINCETOWN",
            "state": "MA",
            "postal_code": "026571618",
            "telephone_number": "508-487-9395",
            "fax_number": "508-487-6298"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SHAY",
        "first_name": "WILLIAM",
        "middle_name": "E",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-11",
        "last_updated": "2026-07-08",
        "certification_date": "2026-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "151526",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "202858",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110091651A",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00980667",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Provincetown, MA

Sources for this page

Verify at the official NPI Registry.